ACTIVITY 1: Multiple Choice: Choose the letter of

the correct answer.

Choose the letter of the correct answer.

1. Which has more momentum, a heavy truck moving at 30 km/h

or a light truck moving at 30 km/h?

A. heavy truck B. light truck

C. both has the same momentum D. cannot be determined.

2. A moderate force will break an egg. However, an egg dropped

on the road usually breaks, while one dropped on the grass usually

does not break. This is because for the egg dropped on the grass

A. the change in momentum is greater. B. the change in momentum is less.

C. the time interval for stopping is greater D. the time interval for stopping is less.

3. The impulse experienced by a body is equal to the change in its

A. velocity B. kinetic energy C. momentum D. potential

energy

4. In certain martial arts, people practice breaking a piece

of wood with the side of their bare hand. Use your

understanding of impulse to explain how this can be

done without injury to the hand.

A. Given the same change in momentum, when the time

interval is smaller the impact force is bigger.

B. Given the same change in momentum, when the time

interval is bigger the impact force is bigger.

C. Given the same change in momentum, when the time

interval is smaller the impact force is smaller.

D. Given the same change in momentum, when the time

interval is bigger the impact force is smaller.

5. A lady tennis player hits an approaching ball with a force

of 750 N. If she hits the ball in 0.002 s, how much

impulse is imparted to the tennis ball?

A. 0 N•s B. 1.5 N•s C. 3.0 N•s D. 6.0 N•s

6. In the table above, what is the momentum of the jeepney?

A.6,000 kg•m/s B. 40,000 kg•m/s C. 20,000 kg•m/s D. 3,000 kg•m/s

7. Which has greater momentum, the jeepney or the motorcycle?

A. jeepney B. motorcycle

C. both have the same momentum D. cannot be determined

8. Two identical cars are travelling along EDSA. Which of the two

cars would have a greater momentum?

A. the slower car B. the faster car

C. both have the same momentum D. cannot be easily determined

9. A bus and a car are travelling along EDSA having the same

velocity. Which of the two vehicles would have a greater

momentum?

A. the bus B. the car

C. both have the same momentum D. cannot be easily determined

10. A 25-kg girl is riding a 5-kg with a velocity of 5 m/s the East.

What is the total momentum of a girl and a bike together?

A. 100 kg•m/s B. 125 kg•m/s C. 150 kg•m/s D. 200 kg•m/s​