Show:
Vocabulary
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
What kind of circuit allows electricity to pass through. Closed or open?
Closed circuit.
100

True or False: Energy can neither be created nor destroyed

True. Energy can neither be created nor destroyed; it can only be converted or transferred.

200

What is a conductor.

Conductors allows electricity to easily travel through them. Some good conductors include metals. Conducts comes from the word conductus which means a carrier.

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
Why do the lights turn off in class when we hit the switch?
The closed circuit is then turned into an open circuit.
200

The 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

How can we generate electricity without using fossil fuels?

We can use solar power, hydroelectric power, or wind power.

300

When Henry eats an apple, he will have energy to play in his soccer game later on. In order to run (mechanical energy) what type of energy does Henry use?

Chemical energy

400
When the string of a guitar vibrates, it produces _______.
sound energy
400
What are three ways that we can describe how light is absorbed by a medium? Transparent, ________, and ________. You must also explain each term.
transparent - light passes through translucent - some light is able to pass through opaque - little to no light is able to pass
400
This causes sound to have a higher pitch.
Sounds waves are closer together.
400

Microwave heating food is an example of this type of energy.

What is an example of radiation/ heat energy

400

This is what happens with potential energy and kinetic energy when a ball is thrown in the air.

What is the ball has the most kinetic energy when it is thrown, and potential energy at its highest.