Advertisements
Advertisements
प्रश्न
What kind of energy is possessed by the following?
A running car ____________
Advertisements
उत्तर
A running car possesses kinetic energy due to its speed.
APPEARS IN
संबंधित प्रश्न
Show that the sum of kinetic energy and potential energy (i.e., total mechanical energy) is always conserved in the case of a freely falling body under gravity (with air resistance neglected) from a height h by finding it when
- The body is at the top.
- the body has fallen a distance x.
- the body has reached the ground.
What type of energy is possessed : by the stretched rubber strings of a catapult?
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass 3.5 kg. Both the spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same :
Name the device or machine which convert :
Electrical energy into heat energy.
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
Explain the transformation of energy in the following cases :
(i) A ball thrown upwards.
(ii) A stone dropped from the roof of a building.
What is the meaning of the symbol kWh? What quantity does it represent?
Name the energy transfers which occur when : a torch is on
Which of the following energy change involves frictional force?
An object is falling freely from a height x. After it has fallen a height `pi/2` , it will possess :
