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Physics Class 9 - Important MCQs - 15

Physics Class 9 - Important MCQs - 15

1. T. V Transmission

1) circular motion
2) mg
3) Newton
4) Global satellites
2. Banking of road

1) 6.4x 106m
2) Mv2/r
3) To avoid accident
4) Centrifugal force
3. Mass

1) Meter
2) Watt
3) Second
4) constant quantity
4. Density of earth

1) Mountains
2) 9.8 m/s2
3) 5500 kg /m3
4) 7.9 km/sec
5. Moment of Effort

1) Pulley
2) r
3) 2
4) Moment of Load
6. Power

1) kinetic energy
2) energy
3) potential energy
4) W/T
7. Fc

1) 6.4x 106m
2) Global Satellites
3) Mv2/r
4) 4/3 Pi R3
8. Product of force and displacement

1) Power
2) work
3) 0.707
4) 1
9. Ideal machines

1) r
2) 1/sin?
3) Out Put
4) Screw Jack
10. Axis of rotation

1) Frame of reference
2) 3
3) Unlike parallel forces
4) Unstable equilibrium
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