Question

6. Which is an example of rotational motion?
a) a planet moving around the Sun
b) a boy in a giant wheel
c) a spinning top
d) a swinging pendulum

7. In which of the following types of motion
is there no change in the direction of the
moving body?
a) curvilinear
b) random
c) oscillatory
d) rectilinear

8. Which of these is not an example of periodic
motion?
a) the movement of a pendulum
b) the rotation of the Earth
c) the revolution of the Earth
d) the beating of a drum
​

Answer 1

Explanation:

The motion which repeats itself after regular intervals of time, is called periodic motion

Answer 2

Answer:

6.b or c

7.d

8.a

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