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Physics Class 9 - Important MCQs - 11

Physics Class 9 - Important MCQs - 11

1. Opposite direction of forces

1) 3
2) Unstable equilibrium
3) Neutral equilibrium
4) Unlike parallel forces
2. Two parts

1) lever
2) Screw Jack
3) Wheel & Axle
4) r
3. Nano

1) ma
2) Fxs
3) 10-9
4) 10-3
4. State of paratrooper

1) ?F=0
2) Equal ? apposite parallel forces
3) ?r = 0
4) Equilibrium
5. Universal law of gravitation

1) Newton
2) mg
3) Second
4) constant quantity
6. Wheel type disc

1) 1/sin?
2) r
3) Pulley
4) 2
7. Force

1) Newton
2) Straight line
3) Fixed circles
4) Like parallel forces
8. Cream Separator

1) To avoid accident
2) Centrifugal force
3) Centrifuge
4) Mv2/r
9. Mega

1) 10-6
2) 10-9
3) 103
4) 106
10. Crane

1) 100% Efficiency
2) pulley
3) L
4) Machine
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