Advertisements
Advertisements
Questions
Explain giving two examples of following :
Non - contact forces
What do you understand by the following term?
Non-contact forces
Solution
The forces experienced by bodies even without being physically touched are called non-contact forces.
Example: Gravitational force and Electrostatic force.
RELATED QUESTIONS
A ball is hanging by string from the ceiling of the roof. Draw a neat labelled diagram showing the forces acting on the ball and the string.
Name the physical quantity that causes motion in a body.
'More the mass, the more difficult it is to move the body from rest'. Explain this statement by giving an example.
Name the S.I. unit of force and define it .
A car of mass 800 kg, moving at 54 kmh−1 is brought to rest over a distance of 15 m. Find the retarding force developed by the brakes of the car.
State four effects which a force can bring about. Give two examples in each case.
The force which acts on an object without physical contact. ______
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.
Does the force of gravity act on dust particles?
Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction. What do you infer about the magnitudes and direction of the forces applied?
