2 The kinetic energy of a moving object depends on its: A Mass only B Speed only C Mass and speed D Mass and height
3 A body of mass 2 kg is moving with a velocity of 3 m/s. Its momentum is: A 1.5 kg m/s B 6 kg m/s C 9 kg m/s D 12 kg m/s
4 A stone is dropped from a height. Its motion is an example of ____. A Uniform motion B Free fall C Circular motion D Vibrational motion
5 The force that opposes the relative motion of two surfaces in contact is called: A Tension B Normal force C Friction D Weight
6 Terminal velocity is reached when: A The object stops moving B The upward force equals the downward force C The object accelerates uniformly D Friction becomes zero
7 Which of the following is a limitation of Newton's laws of motion? A They apply to all objects at all speeds B They fail at very high speeds approaching the speed of light C They cannot explain everyday motion D They do not apply to objects with mass
10 A scalar quantity has ____. A Magnitude only B Direction only C Both magnitude and direction D Neither magnitude nor direction
11 Which type of motion is a spinning top an example of? A Translational motion B Rotational motion C Vibrational motion D Random motion
12 In an isolated system, the total momentum: A Increases with time B Decreases with time C Remains constant D First increases then decreases
13 A body falling freely under gravity has an acceleration: A Around 9.8 m/s² upwards B Around 9.8 m/s² downwards C Equal to zero D Equal to its speed
15 A body is in stable equilibrium when its centre of gravity is: A Raised on slight displacement B Lowered on slight displacement C Unchanged on slight displacement D Shifted outside the base
16 A force of 10 N acts on a body and moves it 2 m in the direction of force. What is the work done? A 5 J B 10 J C 20 J D 40 J
17 According to Newton's first law of motion, an object will remain at rest or in uniform motion unless acted upon by: A A net external force B Gravity only C Friction only D A normal reaction
18 In a speed-time graph, the area under the graph represents: A Acceleration B Distance covered C Speed D Time taken
19 The efficiency of a machine is 80%. If the input energy is 500 J, the useful output energy is: A 100 J B 400 J C 500 J D 625 J
20 A body is in stable equilibrium when a small displacement causes its centre of gravity to: A Rise B Fall C Remain at the same height D Move horizontally
21 Which of the following is a method to reduce friction? A Increasing the roughness of surfaces B Using lubricants C Increasing the normal force D Removing wheels from a trolley
22 Which of the following is a derived quantity? A Electric current B Temperature C Area D Amount of substance
23 Action and reaction forces are: A Equal in magnitude and opposite in direction B Unequal in magnitude and same in direction C Equal in magnitude and same in direction D Unequal in magnitude and opposite in direction
24 Which of the following is a disadvantage of using fossil fuels? A They are renewable B They produce no pollution C They produce harmful gases like CO₂ and cause pollution D They are available in unlimited quantity
25 When a force of 1 N displaces an object by 1 m in the direction of force, the work done is: A 1 J B 1 W C 1 N D 1 Pa