Unit 3 Energy

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 factors should be controlled in an experiment to test the effect of temperature on the bounce height of a ball?

Back

The size of the ball should be the same; only the temperature should vary.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter; it is the total kinetic energy of particles in a substance.

Front

What is an example of thermal energy causing matter to change state?

Back

A scoop of ice cream on the sidewalk becoming soft due to heat from the sun.

Front

What tools are commonly used to measure distance and time in experiments?

Back

A meter stick (or ruler) for distance and a stopwatch for time.

Front

What is the definition of kinetic energy?

Back

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

Front

What is potential energy?

Back

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

Front

How does temperature affect the state of matter?

Back

Increasing temperature can cause solids to melt into liquids and liquids to evaporate into gases.

Front

What is an example of a physical change caused by thermal energy?

Back

Melting ice into water.

Front

What is the relationship between energy and work?

Back

Work is done when energy is transferred from one system to another.