Questions on Light
Q5. Thunder and lightning happen at the same time.
(a) We see the flash of lightning before we hear the thunder. Give the reason for this.
1 mark
(b) Omar investigated the movement of a storm. He measured the time between seeing a flash of lightning and hearing the thunder. He did this six times. Omar put his results in a table.
Flash of lightning |
Time between seeing the lightning and hearing the thunder, in seconds |
A |
8.0 |
B |
5.0 |
C |
3.0 |
D |
9.0 |
E |
13.0 |
F |
16.5 |
Omar drew a bar chart of his results as shown below.
(i) On the bar chart, draw a bar for flash D. Use a ruler.
1 mark
(ii) Which flash of lightning was closest to Omar?
1 mark
(iii) Describe how the distance between the storm and Omar changed as the storm moved between flash A and flash F.
1 mark
Maximum 4 marks
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