Movement And Energy- Grade 4 Flashcards

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1
Q

Is sound a form of movement energy?

A

Yes

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2
Q

What is vibratations?

A

Fast and continuos movements

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3
Q

How do vibrations make music?

A

An input energy lîke blowing, hitting starts vibrations. The vibrations move out of the instruments through air and we hear the sound.

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4
Q

What is a sound wave?

A

The way sound travels through the air

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5
Q

How can sound be to a stone thrown into water?

A

When you throw a stone little waves move away in all directions. Same as sound, sound energy moves away from the part that is vibrating.

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6
Q

How do we hear sound?

A

When an object vibrates it makes the air vibrate too. The vibrations move through the air like a wave and we hear the sound.

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7
Q

How can deaf people hear sound?

A

Through lip movement,voice and body vibrations

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8
Q

Can sound vibrations travel through different materials?

A

Yes

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9
Q

Explain why musical instrument are seen as systems too.

A

They have parts that work together to make it work. They also need an input energy to produce an output sound energy.

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10
Q

What makes sounds loud or soft?

A

The amount of input you put in will be how much of output energy you get out. The more you put the louder the sound.

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11
Q

What is the difference between volume and pitch

A

The volume is how loud or soft a sound is

A pitch is a measure of how high or low a sound is

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