ECAT Pre General Science Physics Chapter 3 Motion and Force Online Test With Answers

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ECAT Pre General Science Physics Chapter 3 Motion and Force Online Test

Sr. # Questions Answers Choice
1 If the velocity time graph is a straight line parallel to the time-axis, then it means: The body is moving with uniform velocity The body is moving with uniform acceleration The body is at rest None of these
2 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is: 3 N 4 N 5 N 6 N
3 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is: 3 N 4 N 5 N 6 N
4 A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be: 10 m/sec<sup>2</sup> 20 m/sec<sup>2</sup> 30 m/sec<sup>2</sup> Zero
5 A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be: 10 NS 100 NS 140 NS 200 NS
6 When brakes are applied to a fast moving car, the passenger will be thrown: Forward Backward Downward none of these
7 Which one of the following is dimensionless: Acceleration Velocity Density Angle
8 The dimension of linear inertia is: MLT<sup>2</sup> ML<sup>0</sup>T<sup>-2</sup> ML<sup>0</sup>T<sup>0</sup> MLT<sup>-1</sup>
9 A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding? 4.2 m 8.4 12.6 None of these
10 A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds? 150 m 250 m 350 m 400 m
11 The short distance between two points direction from its initial point to final point is called: Velocity Displacement Speed Distance
12 Ethanol (alcohol) is a type of: Electric fuel Bio fuel Nuclear fuel None of these
13 Root out the conventional source of energy: Energy from blomass hydroelectric energy Geothermal energy None of these
14 Blomass includes: Crop residue Natural vegetation Animal dung All of these
15 The consumption source if energy is: Energy from blomass Hydroelectric energy Geothermal energy None of these
16 One KWh is equal to: 3.6 x 10<sup>2</sup>J 3.6 KJ 3,6 x 10<sup>1</sup>KJ 3,6 MJ
17 The velocity given to a body to go out of the influence of earth's gravity is known as: Terminal velocity Orbital velocity Escape velocity None of these
18 When two protons are brought closer potential energy of both of them: Increases Decreases Remains same None of these
19 A body of weight 1 N has a kinetic energy of 1 joule when its speed is: 1.46 m sec<sup>-1</sup> 2.44 m sec<sup>-1</sup> 3.42 m sec<sup>-1</sup> 4.43 m sec<sup>-1</sup>
20 Tick the conservative force: tension in a string Air resistance Elastic spring force Frictional force
21 Work done along a closed path in a gravitational force is: maximum Minimum Zero Unity
22 The time rate of change of displacement is called: Time Acceleration Speed Velocity
23 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass: 2 kg 3 kg 4 kg 8 kg
24 Force is a: Scalar quantity Base quantity Derived quantity None of these
25 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is: 100 m/sec 140 m/sec 1960 m/sec 196 m/sec
26 Bodies which falls freely under gravity provides good example of motion under: Uniform acceleration Non-uniform acceleration Uniform velocity None of these
27
Swimming becomes possible because of______law of motion:		 First Second Third None of these
28 A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion: First Second Third None of these
29 A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of: 0.5 m/sec2 5 m/sec2 1.5 m/sec2 9.8 m/sec2
30 Slope of velocity-time graph represents: Acceleration Speed Torque Work
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