GK / GS · Chapter 3
Work, Energy, Power and Simple Machines PYQs
A cricketer swings his bat and the ball flies away, a crane lifts a heavy girder, a cyclist climbs a slope, a dam turns falling water into light for a whole city.
Work: Meaning, Formula, Sign and Units 8 PYQs
- A man pushes a wall with a force of 100 N for 20 seconds, but the wall does not move. According to Newton's laws and the definition of work, what is…Delhi Police 2026 · 20 Jan 2026
- 1 kJ = _____ JSSC MTS 2026 · 06 Feb 2026
- Acceleration due to gravity on Earth is approximately?SSC Stenographer 2026 · 09 Sep 2026
- Which physical quantity is given by the product of force and the displacement in the direction of that force?SSC CGL 2026 · 06 Oct 2026
- If a force acts perpendicular to the displacement of an object, what is the work done by the force?DSSSB 2026 · 24 Sep 2026
- When does a ball have the greatest kinetic energy as it is thrown upwards and then falls back down?DSSSB 2026 · 27 Sep 2026
- When is the work done by a force on an object negative?DSSSB 2026 · 06 Oct 2026
- Which of the following physical quantities has the same dimensions as work?DSSSB 2026 · 14 Oct 2026
Energy: Kinetic, Potential and Mechanical Energy 6 PYQs
- The kinetic energy of an object increases with its _____.SSC MTS 2026 · 06 Feb 2026
- A particle performs simple harmonic motion with amplitude A. When its displacement from the mean position is A/2 what percentage of its total…SSC CGL 2026 · 14 Oct 2026
- Mechanical energy is the sum of kinetic energy and which of the following forms of energy?SSC CGL 2026 · 23 Oct 2026
- Why does a stretched bow-string possess potential energy?DSSSB 2026 · 23 Sep 2026
- A particle's speed is increased from v to 2v. By what factor does its kinetic energy change?DSSSB 2026 · 28 Sep 2026
- What does the term potential energy mean?DSSSB 2026 · 11 Oct 2026
Conservation of Energy and Energy Conversions 6 PYQs
- A 2 kg (kilogram) object moving at $6text m/s$ (meters per second) comes into contact with an initially uncompressed spring and compresses it by…SSC Selection Post 2026 · 24 Sep 2026
- The temperature of an ideal gas is kept constant as it expands. The gas does external work. During this process, the internal energy of the gas:Delhi Police 2026 · 20 Jan 2026
- The Law of Conservation of Energy states that energy can be:DSSSB 2026 · 21 Sep 2026
- The gravitational potential energy of an object increases mainly with the:DSSSB 2026 · 21 Sep 2026
- According to the work–energy theorem, the net work done on an object is equal to the change in its:DSSSB 2026 · 17 Oct 2026
- According to the law of conservation of energy, which statement is correct?DSSSB 2026 · 18 Oct 2026