Advertisements
Advertisements
प्रश्न
State the work energy theorem.
Advertisements
उत्तर
When a moving body experiences force applied to it in the direction of that force.
- Work is done.
- K.E. rises in a manner that is proportional to the force's work. The term "work energy theory" refers to this.
APPEARS IN
संबंधित प्रश्न
How many MeV are equivalent to 1 atomic mass unit (u)?
Fill in the blank
The energy possessed by a body due to its position is called ________ energy.
Name the energy changes for the following:
electric ball
Name the energy changes for the following:
bicycle brakes
Name the energy change for the following:
pendulum
Give three examples of bodies possessing potential energy.
State the energy transformation on the following:
Electricity is obtained from wind energy.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
What is the difference between the solid, liquid, and gaseous states of a substance?
