Advertisements
Advertisements
प्रश्न
The work done on an object does not depend upon the
पर्याय
displacement
force applied
the angle between force and displacement
the initial velocity of the object
उत्तर
initial velocity of the object
Explanation:
The work done on an object does not depend upon the initial velocity of the object.
APPEARS IN
संबंधित प्रश्न
A certain household has consumed 250 units of energy during a month. How much energy is this in joules?
Write true or false of the following statement.
In an electric fan, electrical energy changes into the mechanical energy.
Fill in the blank
The S.I.unit of energy is ______
Select the correct alternatives
The correct statement is
- Take two aluminium channels of different lengths.
- Place the lower ends of the channels on the floor and hold their upper ends at the same height.
- Now take two balls of the same size and weight and release them from the top end of the channels. They will roll down and cover the same distance.
- At the moment of releasing the balls, which energy do the balls have?
- As the balls roll down which energy is converted into which other form of energy?
- Why do the balls cover the same distance on rolling down?
Note: The question is wrong. It should be "Why do the balls cover the same distance after rolling down"? - What is the form of the eventual total energy of the balls?
- Which law related to energy does the above activity demonstrate? Explain.
The capacity that an object has for doing work is called ______.
Can you tell?
What should be taken into account for measuring work?
Running water possesses ______.
Define energy?
A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g = 10 m s–2)
