lectures feel long, quizes were hard for me, hes not bad but i had to drop this class.

he is great.. but hella funny.. i always says "does that make sense?" or "isn't that nice?" hes funny.. and a very good teacher..

Good teacher but bad at explaining. teaches adults like tindy-garten kids. Very theoretical teacher if you want to succeed in his class, READ AHEAD otherwise you will be lost in the exams because the exams are more from the book than the lecture. In the end, i think he is an OK teacher you might not understand him but you can ask questions.

Very interesting class. He is kinda boring but will occassionaly make the class laugh a little. He uses powerpoint in his lectures. There is homework but he doesnt collect it, but still do the homework, cause it will help you in the quizzes. He gives a quiz every 2 weeks. He is very knowlegable about this subject. Recommend this class and teacher.

wow.... really awkward guy... he is good with lectures.... but the subject matter is not too fantastic... he doesnt go over things twice unless you ask him to go over them again... so speak up...... and pay attention during lectures... he says the wierdest stuff.

Attend class and read chapters and nobody should have issues with passing this class. He uses powerpoint which can be boring at times but they will help out with tests. I liked this class and subject a lot!

I really liked his class! He explains everything so clearly and concisely, follows the book perfectly, and can be pretty funny at times. Class is easy, just a quiz every other week, no tests, midterm, and the presentations are entirely optional. I'd definitely recommend him if you want to learn about astronomy without taking a complicated class.

Prof. Lopez is a kool guy, he is very helpful, but his class is hard. He's very smart, it's just that physics is a hard subject for me, so I ended up dropping his class & prolly will retake w/ an easier prof. He writes notes on the board, & it was tough, cuz I sat in the back, and it was hard to hear him over the fan.lol. Kool prof, not a coo class

Monotone voice and seeming lack of interest in subject. He will make little jokes that are funny if you catch them, but it's hard to pay attention when he drones. Quizes are difficult without studying, and there is no chance at making up missed/badly done work. I would not wish his class upon anyone.

He grew on me. he made it simple for me to understand if you get the notes, you'll pass easily. i reccomend him, especialy if you cant write notes on your own.

very good teacher he gives great notes that come straight from the book his quizzes are easy and test are ok but you do need to study. he can be boring at times but overall great teacher he is willing to help students

A very good teacher.Can make a good joke once in awhile.Clear lectures that mostly pertain to the quiz.The book is also helpful.Just jot the notes down and study.However,there are some small things that you would have never thought he would put on the quiz so be careful.Why should people expect his quizzes to be easy?This isn't high school anymore.

Mr. Lopez is a good teacher. Class is simple just show up. If you take notes, study for quizzes a little, and do decent on the final you'll pass with a good grade. Professor is really nice and work isn't hard to do at all. If your not interested or even good at science take this class!

Easy but of course you have to do all the work . gives extra credit

This class subject is boring to me, but Professor Lopez makes it easy to follow. Quiz and test questions are not easy, but not hard. Do the extra credit paper and all the worksheets and you'll be fine. Very helpful too.

Lopez is quirky, but he is smart and will make sure you know the material. One down side is that he does tend to lose train of thought (becomes a little awkward for a moment) but he always gets back on track. You can really tell he cares if you understand and walk away having learned something.

Great professor! Very very well educated and very knowledgeable. Although sometimes id ask him questions and they would be legit and he would look at me like i am a complete moron...other than that he is cool and very approachable.

You need your thinking cap in this class. He expects you've mastered the prereqs and can then take what he's taught and apply it in new situations. Very helpful during labs, and doesn't mind explaining a concept again. Stickler on details on quizes and tests. Don't expect an easy A -- he likes the class average around 65%.

He's a really amazing teacher and his lectures are crystal clear. A bonus is that he is super funny and quirky-- I actually have fun during lectures! His tests are easy if you understand the basics. You don't have to attend lectures if you can read the book and self-study. He's really picky about correct units though, so check your work!

Easy professor over all, just bunch of quiz and exams. Quiz all have a study guide just do the study guide and you will be fine. Tricky questions but you can drop up to 2 lowest grade quizzes. One final and worksheets (study guides) are 30 points.

Doesn't require you to show up, but the class is an easy A if you do. Lecture one day, quiz the next. Homework is a study guide for each quiz, 13 quizzes over the semester, 15 questions each. He drops the 2 lowest ones. 39 question final. Overall, easy class, funny guy, but can be a little bit boring sometimes

I found this class extremely fun, but that was because I had a fun group. Taking Phys 411 with Lopez is tough. You have to do a lot of outside work on your own. If you understand, then its an easy A. Quizzes are easy, labs are fun also, but tests are HARD!Take his class if you're smart and like little work. He breezes through chapters fast

He's super easy. his class is really fun even thou you can find it's sleepy sometimes cuz of his deep voice. He will answer all the questions you ask. Mr. Lopez is the greatest professor i have ever seen at CRC.

Good class overall. I like Astronomy a lot. Even though i messed up on the first quizzes hence why i hope to pass with a C. pay attention to lectures, read book and you will pass class no problem. Class contains 12 quizzes, 1 final and couple extra credit assignments.

Best physics professor I have ever taken! Of course you need to put in the work and practice to understand physics. His notes and explanations are done so well I did not have to read the book much at all! The amount of homework he gives is just right, not too much, plus extra practice problems that will help prepare you for the quizzes and exams.

There is 12 chapter tests and 1 final (last 3 chapters). Chapter tests are 12 questions each and 1 short answer. His lectures can be boring to some and interesting to some; depending on whether you like the subject or not. Take notes during class but don't rely solely on the notes. He uses more technical terms and could be tricky if you didn't.

good at explaining his prepared material but sometimes has difficulty explaining the answers to questions that he wasn't expecting. He's a pretty funny guy but super monotonous, so do yourself a favor and avoid late night/early morning classes with him.

12 chapter tests (1 per week almost) of 13 multiple choice and the final is the last 3 chapters with 35 questions but he only grades 30, and one individual assignment of your choosing. The material is interesting but his lecture style can be a bit dry leading to many people only coming for the exam- he posts his lectures on d2l if you study at home

No one realizes that this professor is actually really great. Yeah his test are a bit tough but that's only if your an idiot who doesn't study. The professor does his best to make you learn and the rest is on you. I loved this class and it was fun, Lopez was the best part about it.

Lopez is a cool guy. He's fairly monotone which lead me to believe he was disinterested in the class, but my few conversations with him, and occasional moments his personality crept out in class showed me he does really care. Labs are fun, hw is not excessive, exams are difficult. Study, come to class, participate and you'll be fine. I'd take again

Cares and does his best to explain to students. Study and understand materials because tests are difficult. If you want to learn, take him.

Definitely cares about his students, but like other reviewers have said, his tests are challenging. You definitely have to know the material really well because even though he gives you tons of practice questions, the actual questions on the test are totally different. HW is not mandatory but do it anyway, trust me

Take him! Awesome, well-paced lectures and light hw. Exams are tough, though--the only way to do well is to consider the practice problems mandatory. The weekly quizzes will kill you if you decide to fall behind, but they're very easy if you've read your notes and started the hw. Super nice, knowledgeable professor. Really enjoyed his class.

Textbook was free online and there was no hw. Weekly quizzes which were almost entirely based on lectures. Two mission reports which were pretty straightfoward. Nice professor overall.

He is very straightforward. He tells you how to do well and how you are graded. His grading on individual problems can be tough. Read the book, take notes when reading and when in lecture, pay attention, do the homework, use study guides, and you'll do fine on the weekly quizzes and exams. "Reports" are like in-class essays with prior preparation.

Took 411 half in-person and 421 online. Compared to Dow, Lopez is a much more thorough prof. He spends more time and effort on lectures, and doesn't just read from slides. Exams were difficult but he gave practice exams. Weekly quizzes where collaboration was allowed. Great for understanding but there are easier profs if you only want units.

Took in Spring of '23. Class M/W 9-10:20 AM & Labs Tues. 8:45-11:50 AM. 13 quizzes, 12 HW, 13 labs, 3 exams, &1 final. He's funny in lectures & shows us examples of problems that may show up on exam. During lab he has patience for everyone that has questions, but grades tough. He gives study guides for tests, which are hard, but still fair.

A lot of hate towards this professor comes from the fact that a lot of people are taking 411 as a requirement and don't understand it's one of those first college classes you have to take seriously. If you're not going into a major that further needs physics take someone easier but all those derivations and labs are important.

Lopez was overall a great, welcoming, and funny professor! I struggled a lot in PHYS 421 with him, but not as much for PHYS 431. Exams were of medium difficulty as long as you worked on the examples, practice exams, and textbook problem sets. Study in-class examples to prepare for quizzes and do textbook problems/practice exam for the exams.

The exams are difficult, but it is a difficult class. Professor Lopez lectures at a great pace--not too fast, making it easy to internalize the information. He also keeps it entertaining with jokes. He is also incredibly helpful when you ask questions/go to office hours. You will come out of his class with a great understanding of the subject.

Professor Lopez is a great teacher. His class forces you to understand the applications of the material, rather than memorizing steps. He is very helpful in labs and office hours. You also get an equation sheet for exams.

He is nice and fun. His lectures are difficult. The exams will be very difficult if you haven't solved many practice questions or don't understand the topics.However, if you keep up with the class and practice, you will be able to pass without any problems. He doesn't give ridiculously hard questions. The quizzes are very easy.

Prof Lopez is such a great professor. He cares about his students and will answer any questions you may have. I enjoyed all the demos he showed in class and made physics interesting and easy to understand. There are quizzes every week and homework assigned weekly but both are easy to do. Highly recommend!!

Lopez is super helpful both in lab and lecture, and I know he wants every student to succeed. His tests are more difficult than the homework or practice exams he provides, so I would recommend studying outside of class more often than usual. He answers questions clearly during lecture, and his labs are actually helpful, and quite straightforward.