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प्रश्न
Define Scalar quantities.
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उत्तर
The physical quantities which are expressed in magnitude only are called scalar quantities.
For example: Mass, length, time, distance, density, energy, etc.
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संबंधित प्रश्न
State whether the following quantity is a scalar or vector.
- Pressure
- Force
- Momentum
- Energy
- Weight
- Speed
When is a body said to be at rest?
'The value of g remains the same at all places on the Earth's surface'. Is this statement true? Give reason for your answer.
What do you understand by the term rest? Support your answer by giving two examples
What do you understand by the term motion? Support your answer by giving two examples
State whether the following is scalar or vector quantity.
Speed
State whether the following is scalar or vector quantity
Acceleration
What do you mean by motion?
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
What do you understand by the equations of motion?
