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प्रश्न
A spring is compressed against a rigid wall. Draw a neat and labeled diagram showing the forces acting on the spring.
उत्तर
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संबंधित प्रश्न
Make a match
| A group | B group |
| 1. Fluid | a. Higher pressure |
| 2. Blunt knife | b. Atmospheric pressure |
| 3. sharp needle | c. Specific gravity |
| 4. Relative density | d. Lower pressure |
| 5. Hecto pascal | e. Same pressure in all directions |
Explain giving two examples of following :
Non - contact forces
Classify the following amongst contact and non - contact forces:
Frictional force
Normal reaction force
Force of tension in a string
Gravitational force
Electrostatic force
Magnetic force
The non - contact force is :
State four effects which a force can bring about. Give two examples in each case.
Explain the following:
Why is it dangerous to jump out of a moving vehicle? How can the danger be minimised?
Rocket works on the principle of conservation of
In the circuit shown in figure, when the key is closed, the compass needle placed in the match box deflects. Name the force which cases this deflection.
During dry weather, clothes made of synthetic fibre often stick to the skin. Which type of force is responsible for this phenomenon?
Does the force of gravity act on dust particles?
