_____1. How does mass be related to the acceleration of a moving object?

A. As the mass increases the acceleration decreases when the force applied is constant.

B. As the mass increases the acceleration also increases when the force applied is constant.

C. As the mass increases the acceleration and force also decreases.

D. As the mass increases the acceleration and force also increases.

_____2. When the jeep you are riding suddenly turns to the right, your body tends to move in the opposite direction. What law of motion is shown in this situation?

A. Law of Inertia B. Law of Acceleration C. Law of Interaction D. Law of Gravitation

_____3. How does mass affect inertia?

A. The lesser the mass the greater the inertia. C. The greater the mass the greater the inertia.

B. The greater the mass the lesser the inertia. D. The greater the mass the greater the inertia and friction.

_____4. If you push a 15kg mass with a force of 60N, what will be the object’s acceleration?

A. 0.25m/s2 B. 4m/s2 C. 60m/s2 D. 900m/s2

_____5. Which of the following will NOT prevent injury on passengers riding a moving vehicle?

A. GPS B. headrest C. handrails D. airbags

_____6. If you double the unbalanced force on an object of a given mass, the acceleration will be?

A. Doubled B. increase fourfold C. increased by ½ D. increased by ¼

_____7. Which unit is used to express force?

A. m/s2 B. N.m C. kg/s2 D. kg.m/s2

_____8. Newton’s first law of motion states than an object’s motion will not change unless

A. its inertia is stronger than applied force. C. the net force acting on it is greater than zero.

B. a force continues to be applied to the object. D. the object has no inertia.

_____9. Which of the following describes the relationship between force and acceleration?

A. Inversely Proportion C. Inversely Square Proportion

B. Directly Proportion D. Direct Square Proportion

_____10. Which of the following statements are TRUE of an object that experiences balanced forces (or unbalanced forces)?

A. If an object is moving at a constant speed in a circle, then the forces acting upon the object are balanced.

B. If a person is moving to the right, then the forces acting upon it are NOT balanced.

C. A balance of forces is demonstrated by an object which is slowing to stop.

D. It would take an unbalanced force to keep an object in motion.

_____11. The action and reaction forces referred to in Newton’s third law of motion _____________________

A. act on the same object C. need not be equal in magnitude and need not have the same line of action

B. act on different objects. D. must be equal in magnitude but need not have the same line of action.

_____12. What will happen to an object if it is acted upon by unequal forces as shown in Fig. 1?

A. It moves in the direction of a bigger force

B. It moves in the direction of a smaller force

C. It moves opposite to the bigger force

D. It remains on its position after giving the forces

_____13. If you throw a rock in a place with no influence of gravity or friction, how will the rock behave?

A. Eventually stop C. Will float in the air

B. Fall on the ground D. Continues to move at a constant speed

_____14. A runner run continuously even after reaching the finished line. What law of motion explains this?

A. Acceleration B. Inertia C. Interaction D. All of these

_____15. Which law explains that heavier objects require more force than lighter objects to move or accelerate them?

A. Acceleration B. Interaction C. Inertia D. Universal Gravitation

_____16. What is the reaction force when you walk?

A. Backward push of the ground on your feet C. Your feet push the ground down

B. Forward push of the ground on your feet D. Your feet push the ground forward

____17. How is the Law of Interaction explained in launching a rocket?

A. Action-reaction force is not evident in launching a rocket

B. Gases coming out of the rocket cause the rocket to fly in space

C. Rocket flies very fast that causes the fuel to burn, releasing gases

D. Rocket flies very fast to escape the pull of gravity

_____18. How are action-reaction forces similar to balanced forces?

A. Both are acting on the same line of action C. Two or more forces are acting on the same object

B. Forces act upon different object D. Two or more forces are acting on the same object

_____ 19. Why action-reaction force do not cancel?

A. Both are acting on the same line of action C. Two or more forces are acting on the object

B. Forces act upon different objects D. They have the same size and act in opposite direction

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