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