Question

Select the correct options.
a) The earliest method of telling time was
i. hourglass.
ii. candle clock,
iii. water clock.
Viv. sundial.
b) Which of the following is not a unit of time?
i. second
ii. sunset
iii. minute
iv. hour
c) A simple pendulum takes 42 s to complete 60 oscillations. The time period of the simple pendulum
i. 66 s.
ii. 4.2 s.
iii. 2.2 s.
iv. 0.7 s.
d) Which of the following relations is correct?
i. Time = distance x speed
Lil. Time = distance + speed
1
iii. Time = speed + distance
iv. Time =
(distance x speed)
e) How far would a roadrunner go at a speed of 35 m/s in 700 s?
i. 245 m
ii. 24,500 m
iii. 2450 m
iv. 17,500 m
Which of the following is closest to uniform motion?
i. A car travelling on a busy road
ii. A car travelling on a busy curved road
iii. A car travelling on a straight empty road iv. A car travelling on a curved empty road​

Answer 1

Answer:

1. iv. 2. ii. 3. iv. 4. i. 5. ii. 6.iii