5th Grade Science Review

Front

What type of energy is required for a lamp to function when plugged in?

Back

Electrical energy

Front

What does it mean when light is reflected?

Back

When light bounces off a surface, such as water reflecting sunlight.

Front

What happens to light when it is absorbed by a surface?

Back

The light energy is taken in by the surface and converted to heat.

Front

What is an insulator?

Back

A material that does not allow heat or electricity to pass through easily.

Front

What is the purpose of a circuit?

Back

To create a closed loop that allows electrical current to flow.

Front

What happens when a switch in a circuit is closed?

Back

It completes the circuit, allowing electricity to flow and devices to operate.

Front

What is the difference between light energy and electrical energy?

Back

Light energy is visible radiation, while electrical energy is the energy of moving electrons.

Front

What is thermal energy?

Back

The energy that comes from the temperature of matter; it is the total energy of all the particles in an object.

Front

What does it mean for light to refract?

Back

When light bends as it passes from one medium to another, like from air to water.

Front

What is the best insulator among common materials?

Back

Materials like rubber, glass, and certain plastics are good insulators.