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KS3 Questions on Sound

Q1.

(a) Claire is sitting in her bedroom listening to music. The sound she hears is produced by the loudspeaker in her radio.

(i) What is the loudspeaker doing to produce the sound?

A

 blowing

B

 filtering

C

 spinning

D

 vibrating

1 mark

(ii) How does the sound get from the radio to Claire?

any one from

  • as a wave
  • by vibrating air
  • through the air
  • n a straight line

1 mark

(iii) What part of Claire's ear converts the sound to an electrical signal?

the cochlea

1 mark

(b) Lorna is in the school hall. The fire alarm rings and Lorna walks away from it.

(i) When Lorna is further away, how loud does the alarm sound to her?

A It sounds louder than before.
B It sounds quieter than before.
C It sounds the same as before.

 

1 mark

(ii) When Lorna is further away, how does the pitch of the alarm sound to her?

A It has a higher pitch than before.
B It has a lower pitch than before.
C It has the same pitch as before.

1 mark

Maximum 5 marks