Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
GCSE C21 P4 keyword
GCSE C21 P4 keywords - FC, Matching, Unscramble, Type In
| Question | Answer |
|---|---|
| speeding up (or slowing down) | acceleration |
| how fast something is moving (distance / time) | speed |
| mass x velocity | momentum (formula) |
| the force of gravity on an object | weight |
| speed and direction (at GCSE, backwards = negative) | velocity |
| force that opposes motion between two surfaces | friction |
| All forces come in equal and opposite pairs (Newton's third law) - each force has a | interaction pair force |
| force that opposes the motion of an object - e.g Air Resistance or Drag, Rolling Friction Sliding Friction | counter force |
| units of force | newton |
| units for work or energy | joule |
| when more than one force acts on one object, the overall force is called the | resultant |
| A force that opposes motion such as Air (or water) Resistance | drag |
| the energy an object has because it is high up (in a gravitational field) | gravitational potential energy (GPE) |
| weight x height (raised up) | GPE (formula) |
| speed at an instant (measured over a very short time period) | instantaneous speed |
| speed measured over a whole journey (or over a longer time, where the speed might not stay constant) | average speed |
| causes change in energy of an object | work done |
| energy an object has because it is moving | kinetic energy |
| 1/2 mass x (speed squared) | kinetic energy (formula) |
| frictional force from ground pushing object (foot, tyre etc) forwards - grip from the ground | driving force |
| forwards force on a jet / rocket, from exhaust gases that are pushed backwards | thrust force |
| the buoyancy force on an object that's in a fluid (e.g. water) | upthrust |
| measured in kg, measures the amount of 'stuff' in an object | mass |
| the force that exists between two objects because they are in contact with each other | reaction force |
| force between two objects pushing them appart even when they are not in contact with each other | repulsive force |
| an impact between two objects (could be an intended impact e.g. landing from a jump) | collision |
| increase this to reduce the force in a collision | impact time |
| forces on an object that produce zero resultant force | balanced forces |
| a force used to slow an vehicle down | braking force |
| negative acceleration, or slowing down | deceleration |
Created by:
allydavies
Popular Physics sets