CMAS Science Review

Front

What happens to a ball's energy as it rises when thrown straight up?

Back

The kinetic energy of the ball changes into potential energy as the ball rises.

Front

What is an example of a pure substance?

Back

A sample of oxygen gas.

Front

What is the correct chemical symbol for cobalt?

Back

Co.

Front

What happens to an object when it reaches terminal velocity?

Back

The object will fall at a constant velocity because the forces on it are balanced.

Front

Which object has the most potential energy when placed on a shelf?

Back

The vase.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object due to its motion.

Front

Define potential energy.

Back

Potential energy is the energy stored in an object due to its position or state.

Front

What is terminal velocity?

Back

Terminal velocity is the constant speed an object reaches when the force of gravity is balanced by the force of air resistance.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that are not chemically combined.

Front

What is the formula for calculating potential energy?

Back

Potential Energy (PE) = mass (m) × gravity (g) × height (h).