Rest and Motion

Motion, Rest, and Types of Motion

Write-up:
An object is said to be in motion if it changes its position with time, and in rest if it does not. However, motion and rest are relative terms. A person sitting inside a moving train is at rest with respect to another passenger but in motion with respect to someone standing on the platform.

Types of motion include:
- Rectilinear: straight path (e.g., car on a straight road)
- Curvilinear: curved path (e.g., ball in air)
- Circular: round path (e.g., fan blade)
- Oscillatory: to-and-fro (e.g., swing)
- Random: no fixed path (e.g., flying insect)
- Periodic: repeating at intervals (e.g., pendulum)
- Non-periodic: does not repeat regularly

1. A book on a table is said to be:

At rest In motion Oscillatory Curvilinear

2. A person walking on a road is in motion with respect to:

A tree Himself His clothes His shadow

3. A swing is an example of:

Oscillatory motion Random motion Rectilinear motion Circular motion

4. A bus moving on a straight road shows:

Rectilinear motion Circular motion Oscillatory motion Periodic motion

5. Motion of the hands of a clock is:

Circular and periodic Oscillatory only Curvilinear only Random motion

6. A flying mosquito shows:

Random motion Circular motion Rectilinear motion Periodic motion

7. Motion of Earth around the Sun is:

Circular and periodic Oscillatory Random Rectilinear

8. A car parked in the garage is:

At rest In motion Oscillatory Curvilinear

9. Rest and motion are:

Relative terms Fixed terms Absolute terms Measured by weight

10. Motion that repeats at equal time intervals is:

Periodic motion Random motion Non-periodic motion Oscillatory motion