Force and Motion Review 8th grade

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What happens to an object when an unbalanced force acts on it?

Back

The object will move in the direction of the larger force.

Front

Define acceleration.

Back

Acceleration is the rate of change of velocity of an object. It can occur as an increase or decrease in speed or a change in direction.

Front

What are balanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion of the object.

Front

If a soccer ball has balanced forces acting on it, what will happen?

Back

Nothing, it will not move.

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is a force?

Back

A force is a push or pull acting upon an object.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

How does mass affect the motion of an object?

Back

The greater the mass of an object, the more force is required to change its motion.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.