Physics Chapter 4 Review

Front

Law of Inertia

Back

The law of inertia states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by an external force.

Front

Which of the following best explains the difference between mass, weight, and volume?

Back

Mass is the amount of matter in an object, weight is the force exerted by gravity on that object, and volume is the space that the object occupies.

Front

Suppose you place a ball in the middle of a wagon that is at rest and then abruptly pull the wagon forward. What is the motion of the ball relative to (a) the ground and (b) the wagon?

Back

The ball remains stationary relative to the ground and backward relative to the wagon.

Front

When a marble is moving in a circular motion and comes to a break in the track, what is the path the marble will take?

Back

It will continue in a straight path.

Front

Copernicus was the first person to state what?

Back

The Earth revolves around the Sun

Front

When you compress a sponge, which quantity changes? Options: Mass, Inertia, Volume, Weight

Back

Volume

Front

A 25-N force and a 30-N force act on an object in opposite directions. What is the net force on the object?

Back

5 N in the direction of the 30-N force

Front

An object in motion can be in a state of equilibrium when:

Back

The net force acting on it is zero.

Front

If a ball is thrown into a frictionless space, what is the amount of force needed to keep it going?

Back

Zero force

Front

Which has more mass—a kilogram of cotton or a kilogram of marble?

Back

Both have the same mass