1. Multiple choice. Encircle the letter of the best answer.
1. What is called to the product of the force applied and the time interval during which it acts?
a. impulse b. momentum c. collision d. none of these
2. What are factors that affects momentum?
a. mass
b. velocity
c. a and b
d. none of these
3. What is the other term for an objects' momentum?
a. momenta b. inertia in motion c. acceleration d. velocity
4. What is called to the encounter between two objects resulting in exchange of impulse and momentum?
a. total momentum b. impulse C. collision d. all of these
5. What collision when objects bounce off after an encounter?
a. elastic collision b. inelastic collision C. collision d. momentum
6. The impulse experienced by a body is equal to the change in its:
a. velocity
b. kinetic energy
c. Momentum d. potential energy
7. 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. O Ns
b. 1.5 Ns
c. 3.0 Ns
d. 6.0 Ns
8. What is the energy of a motorcycle moving slowly at the top of a hill?
A. entirely kinetic B. entirely potential
C. entirely gravitational D. both kinetic and potential
9. Which event is explained in the sequence of energy changes shown in the diagram below?
Chemical energy
Heat
Mechanical energy (with wasted heat)
a headlight is on B. a turbine spins C. electric current powers a flat iron D. gasoline burns to run a jeepney
10. In the Agus VI Hydroelectric Power (HEP) Plant, which energy transformation takes place?
A. electrical energy
mechanical energy
electrical energy.​