quiz and review for the physics lesson.pptx

The presentation includes all the necessary information for the learners to be able to answer to the questions provided for them.

1. If two objects collide with each other_________________ A. The sum of their momentum after the collision is equal to the sum of their momentums before the collision. B. The momentum before the collisions is always greater than the total momentum after the collision. C. The object with greater mass always has greater momentum D. They both lose momentum at the moment of impact.

2. If a football player running down the field is tackled by another football player who holds onto the first football player so that they both fly out of bounds together, that collision is _____________ A. Elastic B. inelastic C. momentum D. invisible

3. In a perfectly elastic collision, a ball dropped from a certain height would……. A. Bounce at a greater height B. Bounce at the same height C. bounce at a lesser height D. stick to the floor

4. A 0.2 kg red cue ball rolling at 1.4 m/s elastically collides directly with a 0.2 kg 9- ball at rest. Which of the following is true? A. The red cue ball would have a velocity of 0 m/s B. The 9-ball would have a velocity greater than 2 m/s C. The red cue ball would have a velocity greater than 1.0 m/s D. The 9-ball would have a velocity greater than 0.5m/s but less than 2 m/s

5. When comparing the momentum of two moving objects, which of the following is correct? A. The object with higher velocity will have less momentum if the masses are equal. B. The more massive object will have less momentum if its velocity is greater. C. . The less massive object will have less momentum if the velocities are the same. D. The more massive object will have less momentum if the velocities are the same.

6. A roller coaster climbs up a hill at 4 m/s and then zips down the hill at 30 m/s. The momentum of the roller coaster A. is greater up the hill than down the hill. B. is greater down the hill than up the hill. C. remains the same throughout the ride. D. is zero throughout the ride.

7. A billiard ball collides with a stationary identical billiard ball in an elastic head-on collision. After the collision, which of the following is true of the first ball? A. It maintains its initial velocity. B. It has one-half its initial velocity C. It comes to rest D. It moves in the opposite direction

8. If a force is exerted on an object, which statement is true? A. A large force always produces a large change in the objects momentum B. A large force produces a large change in the object’s momentum only if the force is applied over a very short time interval. C. A small force applied over a long-time interval can produce a large change in the object’s momentum D. A small force always produces a large change in the object’s momentum.

9. If a mass is at rest, what must be applied to cause it to move? A. Kilograms B. speed C. mass D. force

10. Which has more momentum, a heavy truck or light truck moving at the same speed? Light truck B. Heavy truck C. both have the same momentum D. cannot be determined

11. Which of the following equations is correct in describing the relationship between speed s, distance and time t? a. s = d / t b. s = d x t c. s = d + t d. s = d – t

12. Which of the following is NOT a contact force? Friction b. Tension c. elastic force d. gravitational force

13. A 50 kg astronaut ejects 100g of gas from his propulsion pistol at a velocity of 50 m/s. what is the velocity? a.-0.10 m/s b. -0.50 m/s c. 0 m/s d. -100 m/s

14. Generally, refers to a change in position of an object. a. motion b. force c. power d. velocity

15. A push and pull upon an object resulting from the object’s interaction with another object. a. force b. friction c. motion d. acceleration

16. The motion of an object with constant acceleration is also known as __________. Motion b. Uniform motion c. constant motion d. uniformly accelerated motion

17. The energy present in moving objects. It is equal to the mass of a moving object multiplied by the square of that object’s velocity, multiplied by the constant ½. Kinetic energy b. Gravitational energy c. potential energy d. mechanical energy

18. Which event illustrates the direct transformation of potential to kinetic energy? a. A basketball player catches a flying ball b. A kalesa moves from rest c. Kathy’s arrow is released from its bow d. The spring mechanism of a toy is rotated until it locked

19. Which among the forms of energy is considered a potential energy? a. Chemical energy b. Radiant energy c. sound energy d. thermal energy

20. A person jumps to the ground from a platform 10 feet high. Which of the following is true? A. The person has more kinetic energy before they jump than after they jump. B. The person has less potential energy at the top of the platform than in the air. C. The person’s potential energy at the instant they jump is approximately equal to their kinetic energy the instant they land. D. The person’s kinetic energy at the instant they jump is approximately double their potential energy the instant they land.

21. Is energy transformed while a rock is falling from a cliff? Explain A. Yes, kinetic energy is transformed into gravitational potential energy as the rock falls. B. Yes, gravitational potential energy is transformed into kinetic energy as the rock falls C. No, because the rock lost all of its gravitational potential energy once it started to move. D. No, because one form of energy cannot be transformed into another form energy.

22. In the San Roque Power Plant, which energy transformation takes place? A. Nuclear energy heat electrical energy B. Heat mechanical energy electrical energy C. Electrical energy mechanical energy electrical energy D. Gravitational potential energy kinetic energy electrical energy

23. Mario stretched a rubber band six times. After that, he observed that the rubber band felt warm. Did the rubber band gain Heat? A. No, it is not evident. B. Yes, the rubber band felt warm means its loss heat. C. Yes, the rubber band felt warm means it gained heat. D. No, temperature is not related to a gain or loss of heat.

24. Which of the following happens to the object? A. It loses PE and gains KE. C. It loses both PE and KE. B. It gains PE and loses KE. D. It gains both PE and KE.

25. The PE of the object at the highest point compared to its KE at the lowest point is A. lesser B. greater C. equal D. not related

26. In the given diagram, where is the kinetic energy greatest? A. As the biker is climbing the hill. B. As the biker is on the top of the hill. C. As the biker is on the downside of the hill. D. There is no example of kinetic energy.

27. A girl is riding her skateboard down a hill. She speeds up as she goes down the hill, and the wheels get a little warmer. What energy transformations happen while she is going down the hill? A. Kinetic energy is transformed into gravitational potential energy and thermal energy. B. Gravitational potential energy is transformed into kinetic energy and thermal energy. C. Gravitational potential energy is transformed only into kinetic energy. D. No energy transformations are involved while she is going down the hill.

28. Which of the following is the unit for momentum?