Sound

Question 1

Sound

Answer 1

Sound Is A Longitudinal Wave requiring a medium
Cannot be polarised
Sound travels at different speeds through different media travels faster in denser materials
Travels fatter in hot air than cold air

Question 2

Demonstration showing sound

Answer 2

Question 3

Properties of sound

Answer 3

Refelction ;Echoes
Refraction ;cold air : sound travels slower
Warm air ; sound travels faster
Diffraction ; sound spreads around corners and through gaps
Interference

Question 4

Demo to show sound is a wave motion

Answer 4

Question 5

Loudness of sound

Answer 5

Depends on the amplitude of the sound wave

Question 6

Pitch of sound

Answer 6

Depends on the frequency of the sound wave

Question 7

Quality

Answer 7

Depends on the overtones of the sound waves and fundamental frequency

Question 8

Resonance

Answer 8

Question 9

Demo of resonance

Answer 9

Question 10

Doppler effect

Answer 10

the apparent change of a frequency due to relative motion between the observer and the source

Question 11

Doppler effect demonstration

Answer 11