Question

6. The speedometer of a car measures
(a) average speed
(b) instantaneous speed
(c) distance
(d) both (a) and (c)

7. In a race, a girl runs 100 metres in 20 seconds. Her average speed is
(a) 5 m/s
(b) 10 m/s
(c) 15 m/s
(d) 20 m/s

8. Salma takes 25 minutes from her house to reach her school on a bicycle. The bicycle has a speed of 2
m/s, the distance between her house and the school is
(a) 3 km
(b) 2 km
(c) 25km
(d) 4 km

9. A simple pendulum takes 42 s to complete 20 oscillations, the time period of the pendulum is.
(a) 2.2s
(b) 2.3s
(c) 2.1s
(d) 2.4s
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Answer 1

Answer:

1. average speed

2.10m/s

3.2km

4. 2.1s