AP PHYSICS 1 REVIEW 1 QUESTIONS & ANSWERS

AP PHYSICS 1 REVIEW 1 QUESTIONS & ANSWERS "mu" - ANSWER: coefficient of friction 100 - ANSWER: How many cm in a m? 40 - ANSWER: What percentage is passing (3) for AP physics 1? 45 - ANSWER: angle for the best range for a projectile 90 - ANSWER: angle for longest hang time for a projectile acceleration - ANSWER: slope of a velocity vs time graph alpha - ANSWER: variable for angular acceleration atwood machine - ANSWER: A single pulley with two different masses, allowed to accelerate under the influence of gravity centripetal force - ANSWER: The NET FORCE that keeps an object moving along a circular path. Caused by something - friction, tension, gravity. Always points towards the center. change in momentum - ANSWER: the area under a Force vs time graph change in velocity - ANSWER: the area under an acceleration vs time graph conservation of angular momentum - ANSWER: as long as there is no external torque, the total angular momentum of a set of interacting objects cannot change conservation of energy - ANSWER: Energy cannot be created or destroyed; it may be transformed from one form into another, but the total amount of energy never changes conservation of momentum - ANSWER: the total momentum of a system of objects does not change, as long as no outside forces are acting on that system crosses the x axis - ANSWER: how can you tell when an object has turned around in a velocity vs time graph? decreases - ANSWER: As the applied force decreases, the torque... displacement - ANSWER: area under a velocity vs time graph Displacement - ANSWER: the change in position of an object distance - ANSWER: How far an object moves doubles - ANSWER: If you double one mass, what happens to the gravitational force between two masses? down - ANSWER: What direction does gravity always point on earth's surface? equilibrium - ANSWER: - sum of all forces acting on an object is 0: F net=0