Science Review #2

Front

What is energy?

Back

Energy is the ability to do work or cause change. It can exist in various forms, such as electrical, thermal, and mechanical.

Front

What happens to electrical energy in a toaster?

Back

Electrical energy is converted into thermal energy, causing the coils to glow red and heat up.

Front

What is a characteristic of magnetic materials?

Back

Magnetic materials can be magnetized and are often made of iron.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, acting in the opposite direction of the movement.

Front

How does friction affect a moving skateboard?

Back

Friction slows down the skateboard by acting in the opposite direction of its movement.

Front

What happens to the amount of soil when mixed with water?

Back

The amount of soil stays the same, but it may appear to change due to mixing.

Front

What do waves transfer?

Back

Waves transfer energy from one place to another without transferring matter.

Front

What is the role of light in energy transfer?

Back

Light is a form of energy that can be transferred and converted into other forms of energy.

Front

What is an example of a non-metallic material?

Back

Plastic is a common example of a non-metallic material.

Front

What is the direction of the force of friction?

Back

The force of friction always acts in the opposite direction to the movement of the object.