Producing sound ม5

Sound is produced by .......

• Vibration of particles/ objects.

• By seeing objects

• By hearing the objects

• None of the above

Which of the options are mediums of sound?

• Air

• Water

• Metal

• All of the above

Does sound travel through a vaccum?

• No

• Yes

Speed is

• (a) Distancetravelled/Time

• (b) Distance travelled × Time

• (b) Time/Distancetravelled

• (d) Time + Distance travelled

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.

• Sound does not travel faster through a solid than a gas.

• Solid molecules are packed tightly.

• Gas molecules move slowly.

The part of a longitudinal wave where the particles of the medium are close together.

• rarefaction

• compression

• crest

• trough

The speed of sound at 20 degrees celcius is:

• 331 m/s
• 365 m/s
• 621 m/s
• 343 m/s

Tags

NGSS.HS-PS4-1

Which factor does not affect the speed of sound:

• temperature

• distance

• density

• rigidity

How much matter or mass there is in a given amount of space is called:

• elasticity

• compactedness

• density

• volume

The colder a metal object is, the ____________ sound will travel through it.

• faster

• slower