Quick review before Physics Regents Exam Remember on
Quick review before Physics Regents Exam
Remember, on a multiple choice question, the answer is right there in front of you. You just have to recognize it!
When you get good, the multiple choice questions will start to look like the following questions.
1. Which of these has the most inertia? A) B) C) The one with the most mass. D) blah blah
2. What is it called when one vibrating object makes another object vibrate with the same frequency? A) B) Resonance C) D) blah blah
3. …. question about the nature of projectile motion. A) It moves horizontally at a constant speed, while it simultaneously accelerates vertically downward at 9. 81 m/s 2. Even if it is rising, or even at that highest point of its motion, it is still accelerating downward. B) C) D) blah blah
4. Which is a vector? A) B) C) D) Displacement, velocity, acceleration; any kind of force including weight; impulse, momentum, gravitational field, electric field, magnetic field…those are all the vectors we’ve learned. blah blah
5. How much work is done…. ? A) B) I can use Work = Force x displacement. Make sure the force is in the same direction that the object moves. Or, maybe I’m given the PE + KE that the object gains, and I can use Work = ΔEtotal. C) D) blah blah
5. Something about an object speeding up or slowing down, and a force is applied for some time. A) B) C) D) This looks like an impulse and momentum question! J = F Δ t = Δp = m Δv! I have to think a bit but this will get me there. blah blah
6. Given two or more resistors, which has greater resistance, connecting them in series or in parallel? A) B) C) Greatest resistance when connected in series. Adding more resistors in parallel is like adding more paths, and actually reduces the total resistance. D) blah blah
7. …something where you’re given information about a circuit, and have to figure out some quantity… A) B) C) I can draw a VIR chart and solve it like a puzzle! Just use the rules for series & parallel circuits, which are in the RTs. Don’t forget R=V/I for any individual resistor, and for the circuit as a whole RT=VT/IT. D) blah blah
8. When light or any other wave passes from one medium into another, what quantity does not change? A) Frequency! “Frequency stays the same. ” Period would be another good choice. B) C) D) blah something other than f or T blah something other than f or T
Persistence prevails, when all else fails.
- Slides: 13