Advertisements
Advertisements
Question
What do you understand by the term rest? Support your answer by giving two examples
Advertisements
Solution
Rest: A body is said to be at rest if it does not change its position with respect to its immediate surroundings.
For example:
- A chair lying in a room.
- A stone lying on the ground.
APPEARS IN
RELATED QUESTIONS
State whether the following quantity is a scalar or vector.
- Pressure
- Force
- Momentum
- Energy
- Weight
- Speed
Distinguish between average speed and average velocity.
The vector quantity is :
By giving an example, prove that rest and motion are relative terms.
Pick out the scalar and vector quantities from the following list:
- mass
- density
- displacement
- distance
- momentum
- acceleration
- temperature
- time
Copy the following table and fill in the blank spaces.
| Quantity | S.I. Unit | Scalar or Vector |
| ___________ | kg m−3 | ___________ |
How is a vector represented?
What do you mean by motion?
Give two examples of scalars.
Different positions of a body are given below. Which of the two positions lie on the same straight line?
(i) 8 m, 60o NE
(ii) 3 m, 60o NE
(iii) 5 m, 60o EN
(iv) 5 m, 60o NW
