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संबंधित प्रश्न
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
Name two examples in which the mechanical energy of a system remains constant.
What is the main energy transformation that occur in:
Charging of a battery.
Name the two groups in which various sources of energy are classified?
State the energy changes which take place when:
A car moves up a hill.
Give one example when:
Electric energy changes to potential energy.
Draw a diagram to show the energy changes in an oscillating simple pendulum. Indicate in your diagram how the total mechanical energy in it remains constant during the oscillation.
A body of mass m falls from a height h1 to a height h2, above the ground (h1 > h2). What is the loss of potential energy?
Match the pairs.
| Group 'A' | Group 'B' | ||
| (1) | Rolling object | (a) | Heat energy |
| (2) | Food | (b) | Atomic energy |
| (3) | Stretched bow | (c) | Kinetic energy |
| (4) | Sunlight | (d) | Potential energy |
| (5) | Uranium |
(e)
|
Chemical energy
|
