Physical Science Semester Review

Front

A horizontal (flat) line on a velocity vs. time graph shows ____ acceleration.

Back

zero

Front

When a ball is dropped it bounces until it eventually stops. Why does this happen?

Back

Some of the ball’s energy is converted to other forms, such as thermal and sound.

Front

A factor that does NOT change in an experiment is the ____

Back

constant

Front

An example of an energy conversion from kinetic to thermal energy would be ____

Back

friction

Front

What does the slope of a distance vs. time graph tell you?

Back

the speed of the object

Front

What is the definition of kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration.

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is acceleration?

Back

The rate of change of velocity of 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 includes both speed and direction.