Newton’s First Law of Motion is also called —

A. the law of action and reaction
Incorrect. This is not another name of the first law of motion.

B. the law of natural forces
Incorrect. This is not another name of the first law of motion.

C. the law of inertia
Correct!

D. the law of acceleration
Incorrect. This is not another name of the first law of motion.

Which of the following is the best example of the first law of motion?

A. A rocket taking off from earth that pushes gases in one direction and the rocket in the other
Incorrect. This is not an example of the first law of motion.

B. A rocket sitting on the ground preparing for take-off that needs an outside force to overcome its inertia of a non-moving object
Correct!

C. A rocket that is accelerating through space and exerts a great amount of force because its mass and acceleration is so large
Incorrect. This is not an example of the first law of motion.

D. All of the above
Incorrect. Only one of these is an example of the first law of motion.

The tendency of an object to resist a change in motion is called —

A. friction
Incorrect. Friction is not the tendency of an object to resist a change in motion.

B. gravity
Incorrect. Gravity is not the tendency of an object to resist a change in motion.

C. velocity
Incorrect. Velocity is not the tendency of an object to resist a change in motion.

D. inertia
Correct!

Which of the following statements best describes the relationship between mass and inertia?

A. An object with little mass has less inertia than an object with a larger mass.
Correct!

B. An object with a great amount of mass has less inertia than an object with a small amount of mass.
Incorrect. Objects with less mass have less inertia than objects with a large mass.

C. An object with little mass has more inertia than an object with a large amount of mass.
Incorrect. Objects with less mass have less inertia than objects with a large mass.

D. There is not a relationship between mass and inertia.
Incorrect. Objects with less mass have less inertia than objects with a large mass.