Force and Motion Test

Front

What is force?

Back

A push or pull that can cause an object to change its motion.

Front

What causes a change in motion?

Back

Force.

Front

What is Newton's 2nd Law?

Back

Acceleration is produced when a force acts on a mass. The greater the mass, the greater the force needed to accelerate it.

Front

What happens when air escapes from a balloon in a balloon-rocket car?

Back

The car will move in the opposite direction of the escaping air.

Front

What is acceleration?

Back

The rate at which an object changes its velocity.

Front

What is the relationship between mass and force?

Back

The greater the mass of an object, the more force is needed to accelerate it.

Front

What is the best way to move a cart with two students?

Back

One student pulls while the other pushes in the same direction.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the effect of balanced forces on an object?

Back

The object remains at rest or continues to move at a constant velocity.

Front

What is the effect of unbalanced forces on an object?

Back

The object will accelerate in the direction of the net force.