Advertisements
Advertisements
प्रश्न
What type of energy is possessed : by the stretched rubber strings of a catapult?
Advertisements
उत्तर
The stretched rubber string of a catapult possesses potential energy, as the work done to change the shape of the rubber string is stored in it.
APPEARS IN
संबंधित प्रश्न
Does the transfer of energy take place when you push a huge rock with all your might and fail to move it? Where is the energy you spend going?
A metal ball of mass 2 kg is allowed to fall freely from rest from a height of 5 m above the ground. Taking g = 10 m s−2, calculate:
- the potential energy possessed by the ball when it is initially at rest.
- the kinetic energy of the ball just before it hits the ground?
What kind of energy is possessed by the following?
A running car ____________
What type of energy is possessed : by the piece of stone which is thrown away on releasing the stretched rubber strings of catapult?
Name the device or machine which convert :
Electrical energy into light energy.
Fill in the blank with suitable word:
The electricity meter installed in our homes measure electrical energy in the units of ___________.
How much electrical energy in joules does a 100 watt lamp consume : in 1 minute?
How much electric energy in kWh is consumed by an electrical appliance of 1000 watts when it is switched on for 60 minutes?
In the case of negative work, the angle between the force and displacement is
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be (g = 10 m s–2)
