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Terms
light
sound
Electric
Apply what you know
100

What has the ability to make a change?

Energy

100

Give two examples of how we can see light energy.

Light energy can come from a light bulb, or from the sun.
100

What is the term for how high or low a sound is?

Pitch

100

Electrical energy is caused by moving electric charges called

Electrons.

100

Is this true: can energy transform, or change, from one form into another.

Yes, energy can change from one form to another. For example, light energy can be captured by solar panels and transformed into electric energy to power a home, car, and many other things.

200

What is a mechanical energy

Mechanical energy is defined as the ability of an object to do work.

200
When light strikes a surface and it then bounces to another area, this is called _______.
Reflection
200

Can sound travel through space. Explain with many details.

Sounds requires a medium to travel. Gas, water, and solids are necessary. There is no air in space therefore travel cannot travel.

200

How does electric energy transfer to light energy?

A lightbulb is connected to an outlet that has a source of electricity. The electrical energy is transfered into light energy to allow the bulb to glow.

200

The mechanical energy of motion.

kinetic energy

300
The water in a swimming pool tends to be warmer in the daytime and cooler at night. What natural source of energy causes the difference?
Solar energy from the sun. (thermal energy)
300
When light strikes a surface and it causes the light to bend, this is called ________.
Refraction
300

What property of sound describes how high or low the frequency of sound is?

Pitch

300

The faster the electrical charges move, the more....

electrical energy they carry.

300

Henry wants to cook a steak for dinner. He turns on the stove to medium heat. What energy is he using to cook his dinner?

Thermal energy

400
When the string of a guitar vibrates, it produces _______.
sound energy
400

What are two forms of artificial light energy. 

Lamp, Flashlight, Oven, Etc.
400
This causes sound to have a higher pitch.
Sounds waves are closer together.
400

Microwave heating food is an example of what transfer of energy.

Electrical to thermal

400

If you put some ice cubes in the hot chocolate drink, what do you think will happen to the hot chocolate?

Heat flows from the hot chocolate to the ice cubes.