Answer the following questions in short
1. Define work
2. What are the quantities on which the amount of work done dependeritaw are they
related to work?
3. Is it possible that a force is acting on a body button the work done is cert explainen
one example
4. What is energy?
5. Name any four types of enerey.
6. What is mechanical energy? Give two examples
7. Write the uses of heat energy
8. How does the kinetic energy of a moving body depend on its (1) speed, and (1) mars
9. Describe the energy changes which take place in a radio
10. Write the energy transformations which take place in an electric bult (or cleanetar)
11 Name five appliances or machines which use an electric motor
Answer the following questions in detail,
fha Who
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Answer:
2) Following are the quantities on which the amount of work done depends:
a) magnitude of the force.
b) distance through which the body moves
Force and distance are related to work done as work done is directly proportional to the force applied and the distance moved by the body.
W = Fs
Where, W is the work done F is the force applied s is the distance
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