What form of energy is contained in the following?
What form of energy is contained in the following?
- food
- magnet
- a stone at height
- fuel
- moving vehicle
- sun
What is the difference between kinetic energy and potential energy?
Differentiate between kinetic energy and the potential enrgy.
State the conditions under which a force does no work.
State the conditions under which a force does no work.
A boy standing for the whole day feels tired. Has he done any work? Why does he feel tired?
A boy standing for the whole day feels tired. Has he done any work? Why does he feel tired?
Calculate work done against friction when 5 kg mass is dragged about 5 m distance.
Calculate work done against friction when 5 kg mass is dragged about 5 m distance.
Find the work done if 5N force is applied to displace a book through 20 cm
Find the work done by a boy if he applies the force of 5N to displace a book through 20 cm.
Calculate the work against gravity when 3 kg stone is raised by 3m.
Calculate the work against gravity when 3 kg stone is raised by 3m.
Why don’t we feel the high atmospheric pressure in our bodies?
Atmosphere exerts enormous pressure to our body but we do not feel it, why?