Advertisements
Advertisements
Question
Advertisements
Solution
APPEARS IN
RELATED QUESTIONS
What is the source of heat contained in geothermal energy?
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
State two characteristic which a source of energy must have.
Select the renewable and non-renewable sources of energy from the following:
Wood
Name five renewable sources of energy.
How is the solar energy used to generate electricity in a solar power plant?
State the energy transformation on the following:
Electricity is obtained from hydro energy.
Identify the type of energy possessed by the body in each of the following:
(a) A coiled spring of the toy car
(b) A hammer which is raised
(c) A stone shot from a catapult
(d) Water stored in the overhead tank
(e) A tadpole moving in water.
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
In a hydroelectric power station, 1000 kg of water is allowed to drop through a height of 100 m in 1 sec. If the conversion of potential energy to electric energy is 60%. Calculate the power output. [Take: g = 10m/sec2]
