Physics
The nature of gravitational force is always:
- repulsive
- attractive
- depends on the bodies involved
- None of the above
Related Questions
A ball placed on a table starts rolling down when the table is tilted. This is an example of :
- contact force
- non-contact force
- both (a) and (b)
- none of these
When a comb is rubbed on dry hair, it gets charged. This is an example of :
- Gravitational force
- normal reaction force
- magnetic force
- electrostatic force
The magnitude of a non-contact force between two bodies …………… with an increase in their separation and …………… with a decrease in their separation.
- increases, decreases
- decreases, increases
- increases, increases
- decreases, decreases
On doubling the separation between two bodies the magnitude of the non-contact force between them becomes :
- one-eighth
- one-half
- one-fourth
- remains the same