Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
A coolie does no work against the force of gravity while carrying a luggage on a road.
No work is done by a force if the body
State two conditions when no work is done by a force.
How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction?
Fill in the boxe to show the corresponding energy transformation.
State the energy changes which take place when Water stored in the dam is used to turn turbine in dynamo.
A man climbs a slope and another walks same distance on level road. Which of the two expends more energy and why?
If a ball is dropped on the sloping roof of a house, it acquires ______ and falls on the ground. That is the transformation of ______ energy into ______ energy takes place.
(kinetic, potential, motion)
Mention whether work is done or not in the following activity.
| S. No | Activity | Work done or not done |
| 1. | Pushing the door | |
| 2. | Holding a doll | |
| 3. | Sitting in a bus | |
| 4. | Pushing a wall | |
| 5. | Digging soil |
State whether work is done or not, by writing yes or no, in the following case:
A man pushes a wall.
