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  1. Units are joules, newtons and metres. If the force is overcoming frictional forces, all or some of the work done by the force is converted to heat energy. An light aircraft of mass 1200 kg starts ...

  2. When a force close force A push or a pull. The unit of force is the newton (N). causes a body to move, work is being done on the object by the force. Work is the measure of energy transfer when a ...

  3. The quantity 1 2 mv 2 in the work-energy theorem is defined to be the translational kinetic energy (KE) of a mass m moving at a speed v. (Translational kinetic energy is distinct from rotational kinetic energy, which is considered later.) In equation form, the translational kinetic energy, KE = 1 2 mv 2 , 7.12.

  4. When a force close force A push or a pull. The unit of force is the newton (N). causes a body to move, work is being done on the object by the force. Work is the measure of energy transfer when a ...

  5. The work we do on the rock equals the force we exert multiplied by the distance, d, that we lift the rock. The work we do on the rock also equals the rock’s gain in gravitational potential energy, PEe. W = P E e = m g d W = P E e = m g d. Kinetic energy depends on the mass of an object and its velocity, v.

  6. www.savemyexams.com › 7/2/4-work-done-on-a-massWork Done on a Mass

    When a mass is moved against the force of gravity, work is done. The work done in moving a mass m is given by: ∆W = m∆V. Where: ∆W = change in work done (J) m = mass (kg) ∆V = change in gravitational potential (J kg -1) This change in work done is equal to the change in gravitational potential energy (G.P.E) When V = 0, then the G.P.E = 0.

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  8. Work - Work is done whenever a force makes an object move. The amount of work is force multiplied by distance moved in the direction of the force. Joule (J) - The unit for measuring energy is the joule (J) which is the same as the unit for measuring energy. Kilojoule (kJ) - A thousand joules is called a kilojoule (kJ).

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