GCSE Physics Karteikarten am P1 Conservation and Dissipation of Energy (AQA), erstellt von Mia Lynas am 01/03/2018.
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Erstellt von Mia Lynas
vor mehr als 6 Jahre
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Schließen
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Erstellt von Mia Lynas
vor mehr als 6 Jahre
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What is the principle of Conservation of Energy?
A ride is fired into the sky by rubber bands of a catapult. Explain the changes to the energy stores as the ride moves upwards.
Work done, (J) =
(Work is done on the object by the force)
Calculate the work done when a force of 20N makes an object move 4.8m in the direction of force.
Change in G.P.E (J) =
Kinetic Energy (J) =
elastic potential energy (J) =
A car moving at a constant speed has 360,000J in its kinetic energy store.
When brakes are applied, it stops in 100m.
Calculate the force that stops the car.
Calculate the kinetic energy stored in a vehicle of mass 500kg moving at a speed of 12m/s.
Wasted energy =
Efficiency =
Examples of improving Efficiency:
Power (W) =
power wasted =
