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Physics · Topic 3

Work, energy and power

Sub-topic 1 2024 · National Quarterfinal Free

Kinetic energy of a moving object

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Sub-topic 2 2026 · National Preliminary Premium

Kinetic energy of a moving object

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Sub-topic 3 2025 · National Preliminary Premium

Kinetic energy of a moving object

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Sub-topic 4 2023 · National Preliminary Premium

Kinetic energy of a moving object

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Sub-topic 5 2026 · National One-Eighth Premium

Rolling motion down an incline: linear speed via energy conservation

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Sub-topic 6 2024 · National Preliminary Premium

Conservation of mechanical energy for a vertically launched object: kinetic energy at various heights

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Sub-topic 7 2024 · National Preliminary Premium

Finding the speed of an object from its kinetic energy

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Sub-topic 8 2024 · National Preliminary Premium

Finding the speed of an object from its kinetic energy

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Sub-topic 9 2026 · National Preliminary Premium

Finding the speed of an object from its kinetic energy

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Sub-topic 10 2025 · National Preliminary Premium

Finding the speed of an object from its kinetic energy

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Sub-topic 11 2024 · National Preliminary Premium

Finding the speed of an object from its kinetic energy

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Sub-topic 12 2024 · National Preliminary Premium

Kinetic and potential energy: general concepts (true/false)

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Sub-topic 13 2024 · National Preliminary Premium

Kinetic and potential energy: general concepts (true/false)

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Sub-topic 14 2024 · National Preliminary Premium

Work-energy theorem: change in kinetic energy from a constant force over time

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Sub-topic 15 2024 · National Preliminary Premium

Elastic potential energy stored in a stretched spring

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Sub-topic 16 2024 · National Preliminary Premium

Power developed by a force: true/false ($P = \mathbf{F}\cdot\mathbf{v}$)

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Sub-topic 17 2024 · National Preliminary Premium

Kinetic energy of a particle from its vector velocity components

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Sub-topic 18 2026 · National Preliminary Premium

Kinetic energy of a particle from its vector velocity components

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Sub-topic 19 2024 · National Preliminary Premium

Work done by friction and weight on an object sliding down an inclined plane (true/false)

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Sub-topic 20 2026 · National Semifinal Premium

Work done by friction and weight on an object sliding down an inclined plane (true/false)

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Sub-topic 21 2024 · National Preliminary Premium

Gravitational potential energy at different depths below a reference point

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Sub-topic 22 2026 · National Preliminary Premium

Total mechanical energy ($KE + PE$) of a moving particle at a given height

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Sub-topic 23 2025 · National Semifinal Premium

Force as the negative gradient of a radial potential energy function

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Sub-topic 24 2023 · National One-Eighth Premium

Kinetic energy gained from a decrease in potential energy

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Sub-topic 25 2021 · National Preliminary Premium

Change in kinetic energy from the work-energy theorem

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Sub-topic 26 2025 · National One-Eighth Premium

Change in kinetic energy from the work-energy theorem

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Sub-topic 27 2021 · National Preliminary Premium

Mass of an object from its kinetic energy

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Sub-topic 28 2026 · National Preliminary Premium

Work done by a constant vector force through a vector displacement

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Sub-topic 29 2026 · National Preliminary Premium

Work done by a constant vector force through a vector displacement

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Sub-topic 30 2026 · National Preliminary Premium

Work done by friction from energy conservation

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Sub-topic 31 2024 · Regional Championship Premium

Gravitational potential energy of an object at a given height ($PE = mgh$)

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Sub-topic 32 2024 · National Preliminary Premium

Gravitational potential energy scaling with height, and a kinetic energy riddle

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Sub-topic 33 2023 · National Preliminary Premium

Gravitational potential energy of an object at a given height ($PE = mgh$)

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Sub-topic 34 2026 · National Preliminary Premium

Work-energy theorem: kinetic energy change under a constant net force (true/false)

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Sub-topic 35 2026 · National Preliminary Premium

Kinetic energy has no direction, even for a projectile's velocity components (true/false)

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Sub-topic 36 2025 · National One-Eighth Premium

Kinetic energy has no direction, even for a projectile's velocity components (true/false)

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Sub-topic 37 2025 · National Preliminary Premium

Riddle: kinetic energy, conserved for a free particle

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Sub-topic 38 2013 · National Preliminary Premium

Distance lifted from work done, mass and gravitational acceleration

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Sub-topic 39 2013 · National Preliminary Premium

Identifying vector vs scalar quantities, and work done by a net force

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Sub-topic 40 2019 · National Preliminary Premium

Total mechanical energy of a load lifted at constant speed

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Sub-topic 41 2022 · National Preliminary Premium

Riddle: energy — a conserved scalar quantity with dimensions $ML^2T^{-2}$ and the ability to do work

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Sub-topic 42 2023 · National Preliminary Premium

Power, work and time relationships for lifting an object (three variants)

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Sub-topic 43 2023 · National One-Eighth Premium

Kinetic energy from total mechanical energy and potential energy

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Sub-topic 44 2023 · National Preliminary Premium

Change in kinetic energy sliding down a smooth incline, via the work-energy theorem

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