Ch. 4 Test Review

Front

What is the equal but opposite reaction when you hit a wall with a stick?

Back

The wall pushes against the stick.

Front

What is a force that always acts in the direction opposite of motion?

Back

Friction.

Front

What is the unit for force (F)?

Back

Newton (N).

Front

What is defined as any push or pull on an object?

Back

Force.

Front

What type of force is present when the net force acting on an object is zero?

Back

Balanced force.

Front

What type of force occurs when the net force acting on an object is not zero?

Back

Unbalanced force.

Front

What is the formula for calculating force?

Back

Force (F) = mass (m) × acceleration (a).

Front

What is inertia?

Back

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

Front

What is momentum?

Back

The product of an object's mass and its velocity (p = mv).

Front

What is gravitational force?

Back

The attractive force between two masses.