1 According to Newton's first law of motion, an object at rest will remain at rest unless acted upon by: A A balanced force B An unbalanced force C Gravity only D Friction only
2 Momentum is defined as: A Mass times velocity B Force times time C Mass times acceleration D Force times distance
4 The precision of a measurement is related to: A How close the value is to the true value B The smallest scale division of the instrument C The unit used D The size of the object
5 What is meant by uncertainty in a measurement? A The exact value of measurement B The doubt in the measured value C The unit of measurement D The instrument used
6 A body is said to be at rest if it: A Changes its position with time B Does not change its position with time C Moves in a circle D Moves with constant speed
7 Rolling friction is generally: A Greater than sliding friction B Equal to sliding friction C Less than sliding friction D Independent of the surfaces
8 A body is said to be at rest if it does not change its _____ with respect to its surroundings. A Mass B Position C Speed D Shape
9 A stone is dropped from a height. It falls freely under gravity. Neglecting air resistance, the acceleration of the stone is approximately: A 9.8 m/s² upward B 9.8 m/s² downward C zero D 19.6 m/s² downward
10 A body is said to be in motion if its position changes with respect to a: A Clock B Frame of reference C Scalar quantity D Vector quantity
13 Average speed is defined as: A Total distance divided by total time B Total displacement divided by total time C Change in velocity divided by time D Total distance multiplied by total time
14 While measuring the volume of an irregular solid using a measuring cylinder, the correct way to read the volume is: A At the top of the meniscus B At the bottom of the meniscus C From the side of the cylinder D From above the cylinder
15 If the velocity of a body decreases with time, its acceleration is: A Positive B Zero C Negative D Uniform
17 On a distance-time graph, a horizontal line parallel to the time axis means the body is: A At rest B Moving with constant speed C Accelerating D Decelerating
18 Which balance is more precise for measuring mass in a laboratory? A Mechanical balance B Electronic balance C Spring balance D Beam balance
19 The force that opposes the motion of an object moving through a fluid is called: A Tension B Normal force C Air resistance (drag) D Applied force
20 Which type of motion is a spinning top an example of? A Translational motion B Rotational motion C Vibrational motion D Random motion
21 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
22 If the measured value is close to the true value, the measurement is said to be: A precise B accurate C uncertain D random
23 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
24 In a free-body diagram, the force exerted by a surface on an object perpendicular to the surface is called: A Weight B Normal reaction C Friction D Tension