Unit 1 and 2 Review 2021

Front

What is more dense than water?

Back

A glass marble is more dense than water.

Front

What do fireworks produce?

Back

Fireworks are designed to produce light and sound.

Front

What type of energy do headphones convert?

Back

Headphones convert electrical energy to sound energy.

Front

What does a closed circuit do?

Back

A closed circuit will let energy flow through.

Front

What happens when oil is mixed with water?

Back

When oil is mixed with water, it maintains its physical properties.

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electricity to flow.

Front

What is the difference between a closed circuit and an open circuit?

Back

A closed circuit allows electricity to flow, while an open circuit does not.