II. Answer the following questions.
1. What is work? Explain with the help of an example.
2. What is a lever? Give two examples.
3. What are simple machines?
4. Name five simple machines with one example of each.
5. What is energy?
6. Write a short note on solar energy and wind energy.
plz answer all of them
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Answer:
1) Work is force applied over a distance.
2) a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge
3) a mechanical device that changes the direction or magnitude of a force
4)A The lever.
B The inclined plane
C The wedge
D Screw
E The wheel and axle
5)Energy is the quantitative property that must be transferred to a body
6)wind energy, form of solar energy that is produced by the movement of air relative to Earth's surface
Explanation:
idk the examples of them - i will let them know soon ( pls mark me as brainliest )
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