- 1. 1which of the following is not an effect of force
A) change in the shape of a body
B) change in the speed of a body
C) change in mass of a body
- 2. in science, a push or pull is
A) fall
B) force
C) game
- 3. 3two equal and opposite forces acting on a body constitute
A) unbalanced
B) equal
C) balanced
- 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) weight
B) magnetic force
C) gyration force
- 6. 6Moving things slow down because of _________ forces
A) nuclear
B) gravitational
C) frictional
- 7. 7Which of the following is responsible for motion ?
A) friction
B) balanced forces
C) tension
- 8. 8Which of the following is a bad effect of friction
A) ability to walk
B) noise pollution
C) make life comfortable.
- 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 =Mgh
B) GF =mg
C) GF = M :- g
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