⚡Chapter Practice
Newton's Laws of Motion — JEE Practice
46 practice questions across 3 topics. Filter by difficulty, solve topic-wise MCQs, and review detailed solutions.
3 Topics46 Questions
First & Second Law(16 Qs)
easy (5)
Q1Newton's first law is also known as the law of:Q2A force of 10 N acts on a body of mass 2 kg. The acceleration produced is:Q3The unit of force in CGS system is:Q4A body of mass 5 kg is at rest. The net force on it is:Q5If the net force on a body is doubled and its mass is halved, the acceleration becomes:
medium (6)
Q1A body of mass 10 kg accelerates from 2 m/s to 8 m/s in 3 s. The force acting on it is:Q2A 1000 kg car brakes from 20 m/s to rest in 4 s. The braking force is:Q3Two forces of 3 N and 4 N act perpendicular to each other on a 2 kg body. The acceleration is:Q4A 60 kg person stands in a lift accelerating upward at 2 m/s². The apparent weight is (g=10 m/s²):Q5A force-time graph shows F = 10 N for 5 s. The impulse delivered is:Q6A 2 kg block is pushed with 20 N horizontally on a frictionless surface. After 3 s, the momentum is:
hard (5)
Q1A rocket of mass 1000 kg ejects gas at 400 m/s at rate 5 kg/s. The initial thrust and acceleration are:Q2A 20 kg block on a frictionless incline (30°) is connected by a light string over a pulley to a 10 kg hanging block. The system acceleration is (g=10 m/s²):Q3An Atwood machine has masses 6 kg and 4 kg. The tension in the string is (g=10 m/s²):Q4A block of mass m on a smooth wedge of mass M and angle θ. The normal force between block and wedge when wedge is free to move on a smooth floor:Q5A body of mass m is on a rough surface (μ). A force F at angle θ above horizontal moves it uniformly. The value of F is:
Third Law & Friction(15 Qs)
easy (5)
medium (5)
Q1A 5 kg block is on a rough horizontal surface (μₖ = 0.2). A 20 N horizontal force is applied. The acceleration is (g=10 m/s²):Q2A body of mass 5 kg is on an incline of 30° with μ = 0.3. The friction force is (g=10 m/s²):Q3Two blocks (3 kg on top of 5 kg) are on a smooth surface. A force F is applied to the bottom block. Maximum F so they move together if μ between them = 0.4 is (g=10 m/s²):Q4The angle of repose for a body on an inclined surface with μ = 1/√3 is:Q5A horse pulls a cart forward. The cart moves because:
hard (5)
Q1A block is placed on a rough incline of angle 45°. The coefficient of friction varies as μ = x/2 where x is distance from bottom in meters. The maximum distance the block travels before stopping (released from rest at bottom with velocity 5 m/s):Q2Three blocks of masses m₁ = 1 kg, m₂ = 2 kg, m₃ = 3 kg are connected and pulled by force F = 30 N on a smooth surface. The tension between m₂ and m₃ is:Q3A conveyor belt moves at 2 m/s. A package of 10 kg is placed on it (μ = 0.4). Time for the package to match belt speed (g=10 m/s²):Q4A 10 kg block on a rough incline (30°, μₖ=0.2) is pulled up by a force along the incline. The minimum force for uniform velocity up is (g=10 m/s²):Q5Two blocks m₁ = 4 kg (on table, μ = 0.3) and m₂ = 2 kg (hanging) connected by string over pulley. The acceleration is (g=10 m/s²):
Constraint Relations & Pulleys(15 Qs)
easy (5)
Q1In a simple Atwood machine with equal masses, the acceleration is:Q2A light inextensible string means:Q3The tension in a string connecting two masses is the same throughout if the string is:Q4A 5 kg mass hangs from a ceiling by a rope. The tension in the rope in equilibrium is (g=10 m/s²):Q5In a pulley system, if one end of the rope moves 2 m, and there are 2 supporting strings, the load moves:
medium (5)
Q1In a double Atwood machine (pulley attached to one side of another Atwood), if all three masses are m, the acceleration of system is:Q2A block of mass m is on a smooth incline (30°) connected via string and pulley to a hanging mass M. For equilibrium, M equals:Q3Two blocks of 4 kg and 6 kg are connected by a string on a smooth surface. A 20 N force pulls the 6 kg block. The tension in the string is:Q4A movable pulley gives a mechanical advantage of:Q5In a system with a fixed pulley, 3 kg mass on one side and 2 kg on the other, the tension is (g=10 m/s²):
hard (5)
Q1In a system where a string goes over a pulley attached to a block on a table (no friction), one end connected to wall, the other to a hanging mass m. The block has mass M. The acceleration of block M is:Q2A 3-pulley system has a mechanical advantage of 3. To lift a 300 N load, the effort required (neglecting friction and mass of pulleys) is:Q3In a wedge-block system on a smooth floor, block of mass m on wedge of mass M (angle θ). If the system is released, the wedge acceleration is:Q4A rope of mass m and length L hangs from a ceiling. The tension at a distance x from the bottom is:Q5In a double Atwood machine: left side has mass 4 kg, right side has a pulley with 3 kg and 1 kg. The acceleration of the 4 kg mass is (g=10):
More Physics Chapters
Need Help with Newton's Laws of Motion?
Get 1-on-1 doubt sessions and personalised practice analysis with MindPeak's JEE mentors.