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Questions and Answers
What concept helps us understand many natural phenomena and is closely related to work in science?
What concept helps us understand many natural phenomena and is closely related to work in science?
- Power
- Motion
- Gravitation
- Energy (correct)
Why do some engines require fuel like petrol and diesel?
Why do some engines require fuel like petrol and diesel?
- To decrease the force needed for work
- To decrease their speed
- To provide the energy for their working (correct)
- To increase their weight
In the context of work in science, what is the relationship between force and displacement?
In the context of work in science, what is the relationship between force and displacement?
- Displacement does not affect force
- Force is directly proportional to displacement (correct)
- Force and displacement are unrelated
- Force is inversely proportional to displacement
Which of the following activities require more energy because they are strenuous?
Which of the following activities require more energy because they are strenuous?
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What do living beings and machines have in common regarding their need for energy?
What do living beings and machines have in common regarding their need for energy?
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