Open Sci Ed Unit 8.2

Definition of Vibration:

• when objects jump around

• When objects move back and forth

• When objects stop moving

• when objects run away

Tags

NGSS.MS-PS4-1

The more an object vibrates when greater force is applied, the softer the sounds is made.

• True

• False

Tags

NGSS.MS-PS4-1

Pitch is

• the music box

• the number of vibrations of the sound

• the low point on a wave

• the highness or lowness of a sound

lower amplitude = softer sound

• False

• True

Tags

NGSS.MS-PS4-1

Air near the sound source moves all the way from the sound source to our ears.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound can travel through (choose all that apply)

• empty space with no matter

• gases

• liquids

• solids

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Amplitude is the

• distance from the starting position to a peak or valley

• the number of peaks or valleys in one second

• the number of waves in one second

• How high you are in the mountains

Tags

NGSS.MS-PS4-1

Frequency is

• something very odd

• the distance from starting position to a peak or valley

• the number of waves in one second

• the number of peaks or valleys in one second

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Waves of bigger amplitude transfer more energy than waves with less amplitude.

• True

• False

Tags

NGSS.MS-PS4-1

Hearing loss is caused when one of the structures in your ear is healed.

• True

• False