Homework Practice

Printable assignment

Sound Starter: Vibrations and Mediums

Section A: Sound Production

Question 1mcq

Sound is produced by:

A.Only bright objects

B.Vibrating objects

C.Only still objects

D.Only hot objects

Question 2mcq

A tuning fork produces sound when its prongs:

A.Vibrate

B.Melt

C.Stop moving

D.Reflect light

Question 3mcq

A guitar makes sound mainly due to vibrating:

A.Water only

B.Dust

C.Mirrors

D.Strings

Question 4mcq

A drum produces sound when its:

A.Air disappears

B.Colour changes

C.Membrane vibrates

D.Handle dissolves

Question 5mcq

Higher pitch in a string instrument is produced by:

A.Lower frequency always

B.Higher frequency vibration

C.More darkness

D.No vibration

Question 6mcq

If vibration stops, sound production:

A.Stops

B.Increases forever

C.Becomes vacuum

D.Becomes light

Section B: Sound Propagation

Question 7mcq

Sound cannot travel through:

A.Steel

B.Air

C.Water

D.Vacuum

Question 8mcq

Sound needs a medium because it travels by:

A.Magnetic poles only

B.Light rays only

C.Particle vibrations

D.Empty space compression

Question 9mcq

Sound generally travels fastest in:

A.Vacuum

B.Solids

C.Gases

D.Empty space

Question 10mcq

Placing ear on railway track can let you hear train earlier because sound travels faster through:

A.Steel

B.Vacuum

C.Cotton

D.Air only

Question 11mcq

Sound in air is a:

A.Transverse light wave

B.Chemical reaction

C.Static charge

D.Longitudinal wave

Question 12mcq

Compressions and rarefactions are regions of:

A.Solid and vacuum only

B.Mass and no mass

C.High and low pressure

D.High and low colour