4.2
Quality3.1
Difficulty86%
Would Retake121
Reviews86%
Would Retake
121
Reviews
Rating DistributionOfficial
5
77
4
20
3
11
2
2
1
11
What Students Say
“she is probably the best professor I've had out of my three years at mun”
PHYS1021 - 5.0 rating“Kelly is the most organized prof i've ever encountered”
PHYS1051 - 5.0 ratingClass Info
Online Classes
100%
Attendance Mandatory
42%
Textbook Required
6%
Grade Predictor
Your expected effort level
Predicted Grade
B+
Grade Distribution
Common Tags
Rating Trend
Stable
+0.15 avg changeRatings by Course
PHYSICS1050
5.0
(1)PHYS1051LAB
5.0
(1)PHYS2055
5.0
(1)PHYS1050
4.9
(9)1051
4.8
(4)Difficulty by Course
PHYSICS
5.0
LAB
4.5
PHYS2055
4.0
PHY1020
3.6
PHYS1051
3.5
Reviews (121)
SHe is very monotone,. and very uninteresting.. she may know her stuff but she doesnt know how to teach it
very unhelpful, full of herself
i think she was a great help, you just have to ask her the right questions and she will show you exactly what you want to know, she really is helpfull and means well.
she responds to questions by asking you one and so on, impossible to get an answer.
blah!!! What's her problem! She is full of herself.
Helped me out a lot with the labs, and pretty cool to chat with. Cheers Kelly
very good
Kelly is excellent. She definitly knows what she's talking about and gives great advice/ideas on how to approach a problem! She is also really nice and easy to talk to! :)
She explains things clearly if you ask her the right questions. She definitely knows her stuff and she is very helpful.
horrible, she is just like a wall !!!
wouldn't help at all, only the students she favored
Really helpful, she always explains everything great, I'd ask her over anyone else in the lab.
FANTASTIC!!! Kelly is great. She is really really helpful and could explain anything. She doesn't like it when people just ask her for the answer.. you have to atleast show you're trying. Definitly the only reason I got through the course!
Great for both 1050 and 1051 labs. Like others have mentioned, she will not just give you the answers, but steer you in the right direction and guide your understanding, which is what she should do. This is university and not high school after all! Very friendly and always smiling. A very likeable person and really knows her physics! :)
I can't believe she doesn't have a higher rating! she is probably the best professor I've had out of my three years at mun. Helpful, interesting and a general concern for how students are doing. Does fun examples in class and more than that, does PERTINENT examples, which is more than i can say for most profs. They help on the test and on CAPAs.
I was shocked to see Kelly's ratings so low, she was always very helpful. And while she doesn't usually answer a question directly she helps you figure things out on your own. Which is part of the whole learning process. I hated physics before Kelly made me realize I could figure things out on my own. Definitely recommend her for lecture or for lab
I absolutely hated physics until I had Kelly. She is so kind and approachable, and makes the course a lot less intimidating. She is especially helpful in the labs, and she is the reason I didn't drop the course.
Kelly shorlin was very clear and direct. tough grader and tough tests but very fair, will definitely help-you just have to ask. must do the assignments. lectures werent boring and labs were not bad. posts lots of extra work on d2l which help a lot for tests.
Best physics prof i've had yet! A lot of notes, but all appear on tests and the final. Only tests on what she teaches, and is very helpful. LOTS of practice problems (most show up on tests and the final) so she prepares her students well! Lectures aren't boring, and she does examples in class that help with CAPA's and the final. Highly recommend!!
Kelly is an amazing prof! She really tries to make sure you understand what she's teaching by relating the material to real life examples. She's very approachable and always willing to help. had her for 1050 and 1051 labs and 1051 professor. Would definitely recommend taking her class. course material is hard but she is willing to help. 10/10
This course is arguably one of the hardest at mun. Kelly is a nice woman he wants to see you do good. I failed both midterms and final and she still passed me so I like her.
1051 is an extremely difficult course but Dr. Shorlin is a great professor and really tries to make sure all of her students grasp the material covered in lectures, labs and problem sessions. She posts all notes online along with extra problems for each chapter as well as old midterms and finals which is really helpful. She's the best!
Kelly is the most organized prof i've ever encountered. She has colour coded notes that highlight key equations, including definitions of symbols, and step-by-step examples. The material is difficult but easy to grasp if you attend lectures, ask questions, and complete assignments once material is covered. She is also always in the help centre!
Kelly Shorlin is who your mom would be if your mom was a physicist (super caring, & patient). Phys 1051 is no doubt a hard course, but she is more than happy to give you as much time as you need outside of class to explain whatever you can't understand. If you put the time in, there is ZERO reason why you should fail.
LOVE LOVE LOVE her!!! If you have to take physics, definitely try to get her. She makes tough topics easy to understand and is so patient. Also has colour coordinated notes :)
alright prof. Dr. Shorlin is very considerate and knows her material. goes over a lot of examples of various course materials. there are 2 midterms and a final. Was in a large lecture hall with 200 more students, but she still had time to answer individual questions
Honestly one of the best professors I have ever had! She truly cares about her students and goes above and beyond to make sure that everyone understands the material. She uses lots of visual examples, which helps keep class interesting. As far as testing goes, her tests are fair and are very similar to the homework questions and work done in class.
Great teacher, good notes. posts lecture captures and notes online so no need for attendance.
Kelly is exactly like you mom. She wants you to do well and will do anything she can to help you understand concepts. Her lectures are recorded with video and audio and she posts all of her lectures notes after class, so if you miss a lecture you can just watch it at home. I would highly suggest her for anyone who it taking physics.
she is the best lecturer i ever take with i really like her so much, she helped me to learn how to understand the material
Amazing woman and fantastic prof for 1050. 1051 however is extremely challenging and thus far Kelly's midterms, even with extensive studying of the textbook, notes, and in class examples, are not fair. Test scores for the class are relatively poor and one must expect a harsh average drop after assessment.
Dr. Shorlin will do whatever it takes to help you out. She's easily accessible outside of class and obviously cares. She also makes class really interesting. One of the best profs I've had.
Kelly is an amazing prof and I give nothing but good reviews on her. She tries her best to get the concepts of everything to the students well. Physics 1051 is just an insanely hard course, therefore I don't blame Kelly for students failing at all, its just the course itself. Take her if you want any chance of passing physics 1051.
The most caring and best professor will have ever have at MUN. Her notes and classes are the best. I never attended most of her class in person instead watched most of it on lecture capture recording which was helpful. Do take her and fall in love with the course and her. :)
really caring, wants her students to succeed and will make sure you pass if you're willing to put in the work
She is such a sweet professor. She truly cares about her students, she constantly reminds you in class about her office hours. She always does demos in class, she's such like a physics high school teacher. Physics 1051 is hard, but she gives solid notes and examples for practice. And if you're willing to put in the work she gives, you'll do good.
Lectures are great as she explains important topics well and does a lot of examples. She posts lecture slides to D2L prior to the lecture and if you end up missing a lecture, she also posts a recording. Tests are somewhat easy and a good final. -2 Mid Terms - Final - Labs - 4 Written Assignments (Easy) -
She gives excellent lectures, tests are difficult but fair if you know the material, she is easy to find outside of class and will help you the best she can. Overall a great choice.
I took her for 1050 and I took her again for 1051, great prof, wants you to succeed, if she's a option, take her.
Kelly works through examples in class, posts her personal worked solutions to old finals and uses lecture capture recordings. A very respected prof who doesn't tolerate people being distracting in class. She is also happy to answer any questions regarding the material during or after class. Highly recommend her as a prof as1050 is a hard course.
She is amazing! You just have to pay attention in class because it is easy to get bored some times. However, she always tries to prevent this from happening by doing experiments in class. she is a fair grader but her tests questions shows exactly how much you studied. I love physics in general so if you don't, you might disagree with what I said.
Kelly is an absolute MOM prof. She cares 100% for her students, if you go to her for extra help she will take the time to make you understand. In my class, she had lecture capture and posts before and after class notes. Her assignments are pretty easy too. I absolutely hate physics but with her, I will pass with a solid understanding.
Dr. Shorlin is very sweet, and she is very accessible outside class. But, I find she doesn't teach the bases of concepts, everything is an example. She does have good examples and she posts her notes online with detailed solutions!
Amazing prof
Very clear explanation, repeats information if you ask, listen to questions. very professional in dealing with students. LOTS of experiments and demos in class. Extra credit in quizzes. can help outside class a lot. Final was straightforward. sometimes says jokes. she's ALWAYS smiling. in a nutshell, best prof i ever had.
Solid Physics prof, she is caring and helps students put a lot.
I'm not the biggest fan on physics, but Shorlin's class actually got me to enjoy the material. She's a great instructor and seems to really care about her students. Tests and final exam are pretty fair, and she gives lots of assignments, some of which are worth bonus marks. She's very organized and her lectures are great and interesting.
Kelly is a lovely person and well-rounded educator. She is always seeking your success, and would develop new methods to help you better, ie she started a snapchat account and a youtube channel for extra help. She is very accommodating, and would do demos of experiments during lecture to keep you interested!
Kelly always tried to make her lectures interesting by doing in class demonstrations which was awesome. She is super sweet and caring however when test time rolled around I often felt unprepared even despite taking advantage of all of the extra resources she provided.
Dr. Shorlin is a great prof. She is very caring and gives lots of examples and is more than willing to help. Tests are fair and likes to give theory type test questions. Also have opportunities to improve your grade with bonus assignments. Would take again.
Kelly Shorlin is definitely one of the best professors Ive ever had. She is so kind and goes above and beyond to make physics fun and easy for everyone. Her notes are well-organized, and her demonstrations in lectures and examples for each topic are helpful and explained very clearly. I dont like physics but I really enjoyed her course!
I really struggled with Physics, but Kelly was ALWAYS there to help. She will go the extra mile to help you understand the content! She is EXTREMELY nice, and very CARING!! She that kinda prof who really wants you to excel in the course!! Uses plenty of examples and is VERY organised!One of the best profs at MUN!
did not cover any material we were expected to know during lectures. tested us on uncertainties despite never having introduced them. not a single soul in my physics class finished the midterm confidently. I've heard she is lovely in person but please please please do not take her during online courses. i have 8 things due within the next 3 days.
Very bad grade scheme
Dr. Shorlin was amazing! However, she assigned a lot of assignments for us to do this semester. Not sure if it was her usual or if it was because of the online schooling. Overall, she is an amazing prof! Gives really good feedback and is really easy to get in contact with.
Ms. Shorlin has very well made pre-recorded lectures, is friendly and well organized, and is easily accessible outside class through snapchat and email. She was a joy to have and somehow managed to make 1051 palatable.
Kelly is such a sweet prof. She is so accommodating when it comes to assignments and projects, and shes really generous with the grading scheme. I prefer her lecture method over other profs online lectures. Would definitely take her again
Kelly is a wonderful person however she is very disorganized. I found her online class hard to follow as she would put up a million things at once. She also gave us 2 assignments pretty much every week which got overwhelming at times. She is an excellent teacher however be prepared to stay organized and on top of things.
You won't find a professor that cares about the success & well-being of students as much as Kelly. She is unbelievably patient when you do not understand a topic - if you go to her office hours, she takes the time to go over the question in its entirety. She's always accessible to students, has great email response times, and is very accommodating
Dr. Kelly Shorlin is an awesome professor, she definitely made Phy 1021 enjoyable and less stressful. i really got a good grasp for the course material live never before. i would recommend her classes 100%
Shorlin is the best prof I have had so far! She is so sweet and helpful, if you are behind and need a day or two extra for assignments or projects she so understanding. She answers emails quickly and gives awesome feedback, she truly wants to see her students succeed!
Had Dr. Shorlin this year online for physics and I plan on going back to her for 1021 as long as her class is not full. Super understanding of students and university life, gives lots of examples in lectures and answers any questions you have quickly. Anyone with previous physics background or just starting out, would 10/10 go with her!
Dr. Shorlin was an absolute disaster. She is VERY disorganized Assignments were changed, due dates were changed, nothing was consistent. Even after taking the final, I rushed the last question and didn't get it finished only for her to post 5mins after the submission time that we had an extra 15mins. Too bad I followed the original instructions.
Physics 1020 online with Dr. Shorlin was very homework heavy. Weekly mastering questions, prelab, lab, and sometimes assignment. However, she takes student's feedback very often, often giving us extensions on assignments. She also took feedback from the school and lightened the workload at the end of the semester. The final exam was fairly easy.
Hands down the BEST prof I have ever had at MUN. I'm not a Physics person, but Dr. Shorlin explained her examples clearly and worked out every step, so I was able to understand them completely. She often extended deadlines and cancelled class a few times to give us a break. She listens to student feedback and really seems to care!
Everyone should take at least one class with Shorlin. Makes you fall in love with physics, and helps you land on your feet no matter what. She's the most helpful, caring, and knowledgeable professor I've ever had. There's a bit of work involved, between the assignments and exams, but she'll help you through it. Very responsive. Highly recommend.
P. Shorlin is THE BEST! I recommend you take her course if you ever get the chance. I had never taken physics before, but she made me fall in love with it. Her lectures are super easy to follow. She was also very understanding of the difficulties of online school. She actually cares about her students. I love her!
She deserves the world. Kelly is a gem and does more than just teach you physics. i done physics 1020/21 and soon 1051 with her. She will remind u of your grandma whenever your around her. One of the best profs at mun without question. Hard concepts are a breeze with her. Teaching is 100% her calling. MUN! Give her a raise! You cant loose her
Dr. Shorlin is an amazing professor. She is the most caring prof I have had. I took Physics 1020 and 1021 with her online and she is very accommodating and understanding during these times. She is always there to help during office hours or outside. Her notes are very detailed. There is a fair amount of assessments but all very doable!
I absolutely adore Dr Shorlin. Will reply to your emails in a jiffy, and has regular online hours, which are also later posted. Very compassionate, will help you through absolutely anything. Lectures are the best lectures I have ever seen, and her notes and assignments are the only tools you'll ever need. Genuinely sad the course ended.
Dr. Shorlin is by far my favourite prof ive had! She genuinely cares about her students and their success in the course. Physics is a tricky course, however she makes it seem easy. She is very accessible outside of class and holds many office hours. Her lectures are excellent, very thorough and she does lots of examples. Would definitely recommend
Kelly Shorlin is the kindest prof you will ever have. She truly cares about her students well being, she is so committed to being the best prof she can be. She wants everyone to do well and she is very accommodating to her students needs. She is very reasonable without babying you, she is so sweet. Take her classes!
While Kelly is a very caring and understanding prof, she does not provide enough examples for midterms and tests. Myself and many others were left very underprepared for our midterm and barely passed even though I did highschool physics. Notes are nothing like test questions.
Shorlin is an incredibly competent professor. It's obvious she knows what she's teaching and has a great time doing it too. This makes all the lectures enjoyable and easy to understand. I would recommend you try and take one of her courses, as she tries to set you up to succeed.
she is very nice, gives a nice bit of homework but is very good when it comes to asking for extensions.
Kelly is an AMAZING prof!! She is very easy to talk to and almost always pushed due dates to give us more time. The course is a little workload heavy (post lecture quizzes, assignments, projects, mid terms) but this made the final worth only 20%! She can be a little fast but made this course great
Kelly is such a kind prof! She really cares about everyone doing well in the course, even to the point of pushing ahead assignment dates. Unfortunately this year the tests have been hard because theyre just based on final answers, but Kelly tries to make them as easy as possible and give extra credit assignments! Definitely recommend her!
She is a really nice prof and cares how you do. Lectures notes are really good and explains topic well. Extended most of the deadlines.
Dr. Shorlin is awesome. She is very understanding with due dates, she makes class interesting, and her evaluations are very fair. Her lectures are straight forward. I recommend 100%!
Dr. Shorlin was an amazing prof. Having never done physics in high school this was my easiest course and I owe it all to her. Her explanations on questions were very clear and she always pushed ahead assignments by request. There was quite a heavy work load but if you are willing to put in the work, you will do well
Dr. Shorlin is truly a very kind person and a very thoughtful teacher. She puts a lot of effort into her teaching and is very helpful. Homework load was slightly high, however, it was manageable and she often gave extensions or help. Definitely taking her again for physics 1021. I really like her teaching style!
I have never had so much work from any course in my life. Daily mini quizzes, something like 9 online assignments, 5 hand written assignments, 2 projects, a few tests, 4 labs, a lab exam, 2 midterms, and a final. The content wasnt even hard, and she was good at explaining it but the workload was absolutely insane.
Dr. Shorlin is an amazing person and instructor. She cares alot about her students both academically and mentally. Her notes are very organized, and she is always willing to help outside the class if you needed extra explanation. In my opinion, she should teach physics professors at MUN how to teach!!
Very assignment heavy but overall very nice and gave any and all chances to get your grade up.
Dr. Shorlin is a sweet person but she gives way too many quizzes and assignments IMO. Completely overloaded with work in this course, but she does give lots of opportunities to up your mark.
Kelly is such a great prof, she is super helpful and kind and always helping her students anyway which she can. The course load was very fair and far from overwhelming. I really enjoyed my time taking this course. I 100% recommend Kelly as a prof and if I have the chance to take her again she would be my first choice.
Great Physics Prof. Goes over all course material and lectures very clearly. There is alot of mastering physics assignments but it is great practice and she gives lots of extra credit questions on them. Will change due dates whenever to accommodate students. If you do all the work youll have no problem getting a good mark. Great teacher
A super lovely professor! Would definitely recommend her 100%. As someone who was never very good at physics, I was concerned about how I would find the course but her lectures and notes were amazing and easy to follow. If you put in the work you will receive the mark you want!
Really like her but grades very unfairly at times and doesn't hear you out about concerns with marking if somethings not adding up. Nice woman though.
I found Shorlin to be a great proffessor, she really cares for her student's wellbeing and wants you to do well. She gave two extra-credit assignments after having a poorly recieved second midterm and did lots of preparing for our final. There is a lot of assignments along with labs, but it is a science course so what can you expect?
Had her for 1020 as well, she was way better for 1021! Really wants her students to do well, gives tons of extra credit and does all that she can to prepare you for the final. I definitely recommend her for any physics course!!
Dr. Shorlin is really organized, great at responding to questions, caring, and super smart. Her lectures are clear and she explains the concepts well. If you do the assigned work, take every opportunity for extra credit marks, and practice the questions she gives in lectures and exam prep, the course is quite manageable and enjoyable.
She grades the midterm exams harshly, Jason Crawford is more generous and gives more partial markings. The midterm exams are very difficult, she gave a curve grade of 8% for our 2nd midterm. She is very organized and her notes are easy to follow. Assignments are graded strictly but were similar to lectures examples.
I really like Dr. Shorlin but her teaching style is very much lecture heavy. A lot of examples in class are helpful but aren't complex like the ones all on tests, assignments which makes it hard to do great. I found the exams are graded harshy and she doesn't do any review in class. You may have to study harder but she is really understanding.
Kelly is a very sweet lady who really seems to care. This is a tough course but the grading could be harsh. She was not always the most accessible but sweet when questions were asked during class, and had frequent check-ins during the lecture to make sure we were understanding. Definitely attend the lectures if you want to do well!
Sweetest prof on campus, always wants students to do good and is super understanding with do dates. She can be a hard marker but she is always fair when exam questions are similar to examples in class.
Great professor, had great lectures and was clear on what processes to use for each problem. Also very caring and accessible outside of class. Material and expectations were always clear.
She has really good lecture notes and the final had a couple questions taken from lecture/homework examples. Midterms and final were fair. Easy to do good in her course if you put the work in. Assignments were all easy to get 100% in. Replies to emails quickly and wants everyone to do well. Nice lady.
i dropped this course in september of this year. this is an intro course to physics. i didn't do physics in high school but I need it for my career path. i found her to be very quick and I couldn't write things down. she seems like a nice lady but was very fast pace. maybe if I had a physics background in high school I wouldnt of struggled as much?
Kelly's my favourite prof at MUN. This is my first time taking a physics course and she made it super easy. Test questions came straight from the notes she did in class or the assignments (which could sometimes be difficult) and she graded very fairly. Attendance wasn't mandatory because of lecture capture.
It is very apparent that Kelly is passionate about physics and cares about her students. Her assessments were all fair and content in lectures and assignments were very similar to what was tested.
Dr. Shorlin cares a lot for her students and wants everyone to succeed. I would recommend her for any physics course!
She is very example heavy which allowed us to actually learn how to apply the knowledge, not just memorize stuff. Overall very organized and it was clear what we should take away from the course. Honestly, I loved her teaching style and found it highly beneficial come exam time.
Great professor. Very thorough in the breakdown of physics problems which was super helpful. Very caring and nice. Overall wonderful and would certainly take a course with her again.
Makes physics really easy to understand for anyone. Her lectures are amazing, and her notes give the perfect amount of knowledge needed to have a good basis for physics. Assignments are fair and Tests and exams are easy if you do the work required. Dr. Shorlin is an amazing prof and I would recommend her to anyone doing Physics 1020 or 1021.
She explains things very well and she posts her full lectures online. She posts plenty of practice material and goes through a lot of examples in class. However, her tests tend to be fairly difficult.
Awful class. Assignments every week are nothing like lecture examples. Midterm tests were both very difficult & majority failed. Lectures were hard to follow. As someone who excelled in highschool physics, I found myself continuously struggling with the tasks presented in this class. However, Dr. Shorlin herself was kind when answering questions.
Lectures were engaging. Labs were engaging, albeit sometimes not so. The assignments were fair. The exams, both midterms and final exams, were not what I would call fair. They were much more tough than they should have been. An option for extra credit was offered after the second midterm. However, the exams should likely be adjusted given low perf.
Overall great professor. Her lectures were super fun and enjoyable because she is so passionate about physics and her students success. She assigned online assignments that could be challenging but they were always great for practice. Workbooks completed in class helped a lot. Very accesable professor and friendly person.
Amazing professor. Clearly explains and gives numerous examples. 10 assignments that you could do til you get 100 and very lenient with extensions. Midterms were hard, but she did offer a grade boost if you did better on final, which wasn't too bad. Answered every email I sent her within a day. Teaches to the dumber kids, lectures can feel slow.
Overall Kelly as a person is so sweet and loves to help her students as well as see them succeed, but I found her teaching style very dry at times and repetitive. Not a bad prof by any means just very boring at times and sometimes hard to focus. Assignments every week were great practice!
GO TO CLASS!! I found Kelly to be quite rude in the lecture hall to students, including kicking people out of class for asking her questions. The in-class examples were nothing like the midterms, online weekly assignments or the final. This course felt like it was a PhD course, not an intro to physics for people who never took it in high school.
Overall, Dr. Shorlin is great! Lots of homework tho!! Assignments weekly and pre-class questions every day before class. Not overly difficult just a lot to keep up on.
i loved dr shorlin for two semesters. however i did not like either of her final exams. i found them very hard and i did not like how the "answer key" for her practice exams have no workings (cant see where you went wrong). i like her assignment style a lot though. you have unlimited time and attempts on questions until the due date.
Lots and lots of assignments (11 in total) and lectures which I sometimes found a little cringe-worthy when she tried to get the students involved, but Dr. Shorlin was always helpful whenever I emailed her and her course overall was not too difficult, though I had to practice a lot to feel prepared for the midterms and final.
Kelly was a pretty good prof for the teaching side of things, but I found her so unhelpful during tests and exams. The overall course was pretty simple and she made the exams very similar to old exams and homework problems. If you did every single example she gave before a test, you would get an A easily. Just a bit of work.
Very friendly and accommodating, interesting lectures with clear notes, lots of resources and practice questions available. She has control over her class while still being very friendly and approachable. If you find yourself struggling, just ask for help!
Dr. Shorlin is caring with an approach to teaching is very simple and explained, however going to lecture is very important for success in the course. Her exams are fair with many questions coming from past assignments and practice exams. Studying her approach to questions is very important as marks are reliant on detail and setup. Practice a lot.
I felt some stuff throughout the course was rushed but overall kelly was an alright prof and I wouldn't be upset if I had to take her again
Dr. Shorlin teaches physics in a straightforward way, with clear notes and helpful practice materials. While exams can be challenging, attending class and using resources like Unstuck ai are key to success. An engaging professor who wants students to learn.
I went into her class knowing very little physics and finished with a A. She went through problems during lectures and was available outside of class if we had any questions. She also took the time to give feedback on tests and acknowledged improvements
Class Info
Online Classes
100%
Attendance Mandatory
42%
Textbook Required
6%
Grade Predictor
Your expected effort level
Predicted Grade
B+
Grade Distribution
Common Tags
Rating Trend
Stable
+0.15 avg changeRatings by Course
PHYSICS1050
5.0
(1)PHYS1051LAB
5.0
(1)PHYS2055
5.0
(1)PHYS1050
4.9
(9)1051
4.8
(4)Difficulty by Course
PHYSICS
5.0
LAB
4.5
PHYS2055
4.0
PHY1020
3.6
PHYS1051
3.5