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5
×
What can make vibrating objects?
sounds
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5
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If the faster the vibrations, can be the higher the pitch of sound or the lower the pitch of the sound.
the higher the pitch of the sound
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5
×
How can raise the pitch on a stringed instrument?
by making the string thinner ,shorter or tighter
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thief
Give points!
5
10
15
20
25
×
gift
Win 15 points!
Okay!
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gift
Win 10 points!
Okay!
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thief
Give points!
5
10
15
20
25
5
×
can sound travel through materials?
Yes
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5
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a word for "move from the vibrating object through materials".
vibrations
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boom
Lose 50 points!
Oops!
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magnet
Take 5 points!
Okay!
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gift
Win 10 points!
Okay!
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baam
Lose 25 points!
Oops!
5
×
Look at the picture and answer.
air(soft)/water (louder) / wood (loudest)
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5
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a word for " to make sounds less and less clear".
muffle
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5
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To muffle the sound of car's engine, which equipment does we need to use?
silencer
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5
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a word for " how high or low a sound is".
pitch
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5
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Which materials is the best to travel sound?
solids
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5
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What is the unit for measuring sound?
decibels(dB)
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5
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what can cause large vibrations?
loud sounds
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eraser
Reset score!
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fairy
Take points!
5
10
15
20
25
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shark
Other team loses 15 points!
Okay!
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lifesaver
Give 20 points!
Oops!
5
×
What kind of pitch sound can make for thunder?
low- pitched sound
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