Question

What type of motion is exhibited by
a) tuning fork b) earth moves about its own axis

Answer 1

a. vibratory motion
b. periodic and rotatory morion
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Answer 2

Answer:

a) tuning fork: Vibrational motion

b) earth moves about its own axis: rotational or periodic motion

Explanation:

• Motion: When an object changes its position with time then we can say the object is in motion. Motion can be of different types, like - rectilinear motion, circular motion, periodic motion, rotational motion etc.
• Motion of the given objects:

a) Tuning fork: Tuning fork makes sound. Any kind of sound is created because of vibration. So tuning fork must has vibrational motion.

b) Earth moves about its own axis: In this case Earth is rotating about a fixed axis, so rotational motion is involved.

   Earth takes a particular time to complete one rotation, so there periodic motion is also involved.

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