What is wheel and axle arrangement?

Important Questions on Force, Work and Energy

EASY

4th CBSE

IMPORTANT

LEARNING SCIENCE FOR SMARTER LIFE,>Chapter 10 - Force, Work and Energy>Test Match>Q D

How does a heater give heat on turning the switch 'ON'? Explain.

EASY

4th CBSE

IMPORTANT

LEARNING SCIENCE FOR SMARTER LIFE,>Chapter 10 - Force, Work and Energy>Test Match>Q 1

Why spacewalkers are attached to their ship with a cord?

EASY

4th CBSE

IMPORTANT

LEARNING SCIENCE FOR SMARTER LIFE,>Chapter 10 - Force, Work and Energy>Test Match>Q 2

Why it is adviced to drive slow on roads when it is raining?

EASY

4th CBSE

IMPORTANT

LEARNING SCIENCE FOR SMARTER LIFE,>Chapter 10 - Force, Work and Energy>Test Match>Q 1

Machine are devices which make our work easy. List three machines which you can find on an agricultural farm. How the machines make the farmer's work easy?

EASY

4th CBSE

IMPORTANT

LEARNING SCIENCE FOR SMARTER LIFE,>Chapter 10 - Force, Work and Energy>Test Match>Q 1

Find out whether the height of a ramp affects the force needed to move a wooden block up the ramp. What should be kept unchanged in the experiment: the weight of the load, the height of the ramp, or the surface of the inclined plane?

EASY

4th CBSE

IMPORTANT

LEARNING SCIENCE FOR SMARTER LIFE,>Chapter 10 - Force, Work and Energy>Test Match>Q 1

Observe a bicycle. Identify the parts where friction needs to be reduced and parts where friction needs to be increased.