Advertisements
Advertisements
प्रश्न
What kind of energy is possessed by the following?
A compressed spring ____________.
Advertisements
उत्तर
A compressed spring possesses elastic potential energy.
संबंधित प्रश्न
A ball is placed on a compressed spring. What form of energy does the spring possess? On releasing the spring, the ball flies away. Give a reason.
A pendulum is oscillating on either side of its rest position. The correct statement is:
What kind of energy is possessed by the following?
A stone kept on roof-top _______________
What kind of energy is possessed by the following?
A running car ____________
What kind of energy is possessed by the following?
A stretched rubber band _____________
Fill in the blank with suitable word :
The ability of a body to do work is called __________. The ability of a body to do work because of its motion is called __________.
Fill in the blank with suitable word :
The sum of the potential and kinetic energies of a body is called __________ energy.
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his potential energy at the highest point? (g = 10 m/s2)
What is the difference between potential energy and kinetic energy?
A stone is thrown upwards as shown in the diagram. When it reaches P, which of the following has the greatest value of the stone?
Name the device or machine which convert :
Light energy into electrical energy.
Fill in the blanks with suitable words :
The principle of ___________ of energy says energy can be transformed from one form to another, but it cannot be ___________ or ___________.
What kind of energy transformations take place at a coal-based thermal power station?
How much electrical energy in joules does a 100 watt lamp consume : in 1 second?
What do you understand by the term 'transformation of energy"? Explain with an example.
Name the energy transfers which occur when there is a picture on a television screen.
Name the energy transfers which occur when a torch is on.
A ball falls to the ground as shown below :
What is the kinetic energy of ball when it hits the ground?
An object is falling freely from a height x. After it has fallen a height `pi/2` , it will possess :
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)
