GCSE C21 P4 keywords - FC, Matching, Unscramble, Type In
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| speeding up (or slowing down) | acceleration
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| how fast something is moving (distance / time) | speed
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| mass x velocity | momentum (formula)
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| the force of gravity on an object | weight
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| speed and direction (at GCSE, backwards = negative) | velocity
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| force that opposes motion between two surfaces | friction
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| All forces come in equal and opposite pairs (Newton's third law) - each force has a | interaction pair force
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| force that opposes the motion of an object - e.g Air Resistance or Drag, Rolling Friction Sliding Friction | counter force
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| units of force | newton
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| units for work or energy | joule
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| when more than one force acts on one object, the overall force is called the | resultant
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| A force that opposes motion such as Air (or water) Resistance | drag
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| the energy an object has because it is high up (in a gravitational field) | gravitational potential energy (GPE)
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| weight x height (raised up) | GPE (formula)
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| speed at an instant (measured over a very short time period) | instantaneous speed
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| speed measured over a whole journey (or over a longer time, where the speed might not stay constant) | average speed
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| causes change in energy of an object | work done
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| energy an object has because it is moving | kinetic energy
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| 1/2 mass x (speed squared) | kinetic energy (formula)
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| frictional force from ground pushing object (foot, tyre etc) forwards - grip from the ground | driving force
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| forwards force on a jet / rocket, from exhaust gases that are pushed backwards | thrust force
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| the buoyancy force on an object that's in a fluid (e.g. water) | upthrust
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| measured in kg, measures the amount of 'stuff' in an object | mass
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| the force that exists between two objects because they are in contact with each other | reaction force
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| force between two objects pushing them appart even when they are not in contact with each other | repulsive force
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| an impact between two objects (could be an intended impact e.g. landing from a jump) | collision
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| increase this to reduce the force in a collision | impact time
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| forces on an object that produce zero resultant force | balanced forces
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| a force used to slow an vehicle down | braking force
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| negative acceleration, or slowing down | deceleration
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Created by:
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