Which one is an example of sound energy?

a saxophone player blowing air into the mouthpiece

Which is true about energy?

Energy can change from one form to another

How can they talk using cans and string?

vibrations from their voice sending sound down the string

How does the mechanical energy change the position of the car?

it turns the wheels so the car goes down the ramp

energy that can be released by a chemical change.

When you can hear a sound, it has a pitch. What is change in pitch most related to?

how fast the vibration is moving back and forth

What would cause a really loud sound when it rains?

Rain vibrating the metal of a roof

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Duplicate of Energy

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4th Grade Unit 2 Review

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Questions 13

Answers

1
What forms of energy do we get from the Sun?
Energy of Motion and Heat
Light and Sound
Only Heat
Light and Heat
2
What type of energy do musical instruments produce?
Sound energy
Light energy
Heat energy
Electrical energy
3
What item has Heat Energy?
Grass
a Toaster
Snow
Desk
4
Which one is an example of sound energy?
watching a basketball game
rolling a ball down a hill
turning the car on using a key in the ignition
a saxophone player blowing air into the mouthpiece
5
Which is true about energy?
Energy can be destroyed when work is done
Most sources of energy are renewable
Energy can change from one form to another
Objects at rest do not have energy
6
Which form of energy results from the vibrations that travel through air?
Electrical Energy
Potential Energy
Sound Energy
Chemical Energy
7
How can they talk using cans and string?
vibrations from their voice sending sound down the string
light energy from the air sends sound energy down the string
shaking cans causes magnetism and travels down the string
heat energy from their breath sending energy down the string
8
How does the mechanical energy change the position of the car?
it turns the wheels so the car stops on the ramp
it turns the wheels so the car falls off of the ramp
wheels turn so the car goes through the middle of the ramp
it turns the wheels so the car goes down the ramp
9
Chemical energy is
a vibration.
energy that comes form electric current.
energy that creates sound.
energy that can be released by a chemical change.
10
What do you need for mechanical energy to be present?
lights and sound
waves and vibrations
potential and kinetic energy
food and gasoline
11
When you can hear a sound, it has a pitch. What is change in pitch most related to?
how fast the vibration is moving back and forth
how soft the vibration is
how long the vibration continues
how loud the vibration in
12
What would cause a really loud sound when it rains?
Rain rusting the metal roof
Lighting shaking the metal roof
Rain vibrating the metal of a roof
Lighting reflecting off the metal roof
13
When does an object have the most potential energy?
when the ball is lying on the ground
when you are holding it in your hands
when the ball is about to drop
when the ball is rolling down a ramp

Duplicate of Energy Flashcards | StudBud