7th Grade Q2 Review

Front

What state of matter has particles that contain the most heat?

Back

Gas

Front

What is the term for the distance between two consecutive crests of a wave?

Back

Wavelength

Front

Why does a bouncing basketball not remain in motion forever?

Back

The energy is transferred to sound and heat energy as friction as it hits the ground.

Front

What is the name of the substance through which a wave travels?

Back

Medium

Front

What does the Law of Conservation of Energy state?

Back

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

Front

What happens to the energy of a bouncing ball when it hits the ground?

Back

Some energy is converted to sound and heat.

Front

What is the definition of frequency in relation to waves?

Back

Frequency is the number of waves that pass a point in one second.

Front

What is the relationship between heat and particle movement in matter?

Back

The more heat the particles contain, the faster they move.

Front

What is an example of energy transformation?

Back

Rubbing hands together converts kinetic energy to thermal energy.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy, while kinetic energy is energy of motion.