Physics 9th Class English Medium Unit 3 Online Test With Answers

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Physics 9th Class English Medium Unit 3 Online Test

Sr. # Questions Answers Choice
1 A bucket having some water is revolved in vertical circle. Water does not spill out, even the bucket is upside down, due to. Centrifugal force on water Weight of water Inertial of water Action and Reaction balance each other
2 At the fairground, the force that balances your weight is Gravitatinal force Electrostatic force Centripetal force Frictional force
3 Net force n the body falling in air with uniform velicyt is equl to. Zero Weight of the body Are resistance on the body Difference of weight of body and air resistance on it.
4 An object of mass 1 kg placed at earth's surface experience a force of. 1 N 9.8 N 100 N Any Value
5 The force which moves the car is Force of friction between road tyre Force developed by engine Uniform velocity Water split on the road
6 A force acts on a boyd for 2 seconds and it produces 50 kg m/s chagne in its momentum. The force acting on the body 25 N 100 N 2 N 50 N
7 Thrust force is a consequence of which law of motion. First Second Third Fourth
8 A book of mass 5 kg is placed on the table, the magnitude of net force acting on the book is. 0 N 25 N 5 N 10 N
9 Change in momentum of a body is equal to Force Velocity Force Time Mass time Force
10 The rate of change of momentum of free falling body is equal to its. Size Velocity Weight Momentum
11 N kg-1 is equivalent to m s-1 m s-2 k g ms-1 kg m s-2
12 SI unti of linear momentum is kgm-1 s-1 kg m s-1 kg m2 s-1 Nm
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