- 1. 1which of the following is not an effect of force
A) change in the shape of a body
B) change in mass of a body
C) change in the speed of a body
- 2. in science, a push or pull is
A) force
B) fall
C) game
- 3. 3two equal and opposite forces acting on a body constitute
A) balanced
B) equal
C) unbalanced
- 4. 4One of the following is not a force field
A) electrostatic force
B) fractional force.
C) gravitational force
- 5. 5A calibrated spring balance can be used to measure
A) gyration force
B) weight
C) magnetic force
- 6. 6Moving things slow down because of _________ forces
A) frictional
B) gravitational
C) nuclear
- 7. 7Which of the following is responsible for motion ?
A) tension
B) friction
C) balanced forces
- 8. 8Which of the following is a bad effect of friction
A) make life comfortable.
B) noise pollution
C) ability to walk
- 9. Friction acts in the _____________ direction as motion (a) (b) (c)
A) upward
B) same
C) opposite
- 10. 10Gravitational force is conservative in nature which of the following formulae can be best used to calculate gravitational force on the surface of the earth
A) GF =mg
B) GF =Mgh
C) GF = M :- g
|