Rainbow 🌈 mind map of Work
Definition: Work is said to be done, if force is applied and body displaces in the direction of force.
Formula: Work = Force • Displacement
Units: - SI- N m ( joule) , other unit - kgf m
Relations:
1 joule = 1 N m
1 kgf m= 9.8 joule
Factors affecting Work:
• Force applied ( greater magnitude of force ,greater the work done)
• Displacement ( greater the displacement, greater the work done)
1 joule of work :-
Work is said to be 1 joule when one newton force acts on a body moves it by 1 metre in the direction of force.
The work done by a force is zero :
Rainbow 🌈 MCQ of work
1. _______is said to be done , if force is applied and body displaces in the direction of force.
Explain:- Work is said to be done , if force is applied and body displaces in the direction of force.
2. Work =
Explain:- W= F.d
3. S.I unit of work
Explain:- S.I unit of work is joule
4. 1N m = ___ joule
- A) 1
Explain:- 1 N m = 1 J
5. Factor affecting work done
Explain:-Factors affecting work are magnitude of force and displacement
6. Work is said to be _______ when one newton force acts on a body moves it by 1 metre in the direction of force.
Explain:- Work is said to be 1 joule when one newton force acts on a body moves it by 1 metre in the direction of force.
7. Amount of work done by moon around the Earth is
Explain:-Work done is zero , when angle between force applied and displacement is 90⁰ .
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