Physical Science Midterm Practice

Front

What is a hypothesis?

Back

A prediction or proposed explanation that can be tested.

Front

What does the graph indicate about pizza sales?

Back

For every pizza sold, the school earns $3.00.

Front

How is average speed calculated?

Back

Average speed is found by dividing total distance traveled by the total time.

Front

What is the net force if the force is 20N to the left?

Back

The net force is 20N←.

Front

What is force?

Back

A push or pull exerted on an object.

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 refers to the speed of an object in a specific direction.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma).

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion, calculated as KE = 1/2 mv².

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration, calculated as PE = mgh.