Questions on Light
Q4.
(a) Rockets are used to summon help from lifeboat crews. A rocket was sent high into the air above a seaside town. It exploded with a loud bang and a bright flash of light. Lisa observed the alarm flare being sent up. Which statement is correct?
A: the bright flash of light was seen first
B: the loud bang was heard first
C: the flash of light was seen and the bang was heard at the same time
1 mark
Give a reason for your answer.
Light travels faster than sound - you would therefore see the flash of light before the 'bang' travelled to your ears.
1 mark
(b) Some people were nearer to the rocket than Lisa. How did the sound seem to them?
A: It was quieter.
B: It was louder.
C: It was higher pitched.
D: It was lower pitched.
1 mark
Maximum 3 marks
About this site
