Vibrations

When you hit a tuning fork on a piece of wood, it makes a sound because it is __________________.

• doesn't move

• vibrates

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NGSS.MS-PS4-2

Sound is a form of energy produced by ______________.

• vibrations

• distances

• prisms

• Ms. Crews

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Why does cupping your hands around your mouth when you shout make the sound travel further?

• The sound spreads out.

• Your voice gets louder.

• You are screaming.

• The sound energy is directed in one direction.

An object that does not vibrate cannot produce

• sound

• light

• heat

• electricity

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Frequency in sound waves is best defined as

• the highest sound

• number of vibrations per second

• The lowest sound

• how long the strings are on an instrument

What is frequency?

• the number of vibrations per second

• how high or low a sound is

• the loudness or softness of a sound

• the back and forth movement of matter

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

the number of vibrations per second

• vibration

• volume

• pitch

• frequency

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NGSS.MS-PS4-1

Which of the following scenarios would result in sound being produced?

• Taking a nap

• Sharpening your pencil

• Looking out a window

• Thinking about your homework

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is the primary cause of sound production in musical instruments?

• Vibrations

• Electric currents

• Magnetic fields

• Chemical reactions

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following best describes the term 'frequency' in the context of vibrations?

• The speed of sound

• The number of vibrations per second

• The amplitude of the wave

• The wavelength of the sound