Keywords: 0.0 / 5 ? SciencePhysicsGCSEAQA Created by: daniela.xCreated on: 29-04-18 18:03 acceleration The amount by which speed increases in one second. 1 of 21 atmospheric pressure Pressure caused by the collisions of air molecules that produce a force on an area. 2 of 21 average speed The total distance travelled in the total time taken for a complete journey. 3 of 21 centre of gravity The point in an object where the force of gravity seems to act. 4 of 21 centre of mass the point in an object where the mass of an object seems to act. 5 of 21 compressed Squashed into a smaller space. 6 of 21 density The mass of a material in a certain volume. 7 of 21 distance-time graph A graph that shows how far an object moves each second. 8 of 21 gas pressure The force exerted by air particles when they collide with a surface. 9 of 21 incompressible Cannot be compressed (squashed). 10 of 21 instantaneous speed This speed at a particular moment. 11 of 21 law of movements An object is in equilibrium if the clockwise moments equal the anticlockwise moments. 12 of 21 liquid pressure The pressure caused by collisions of particles in a liquid. 13 of 21 metres per second A unit of speed. 14 of 21 moment A measure of the ability of a force to rotate an object about a pivot. 15 of 21 newton metres The unit of movement. 16 of 21 newtons per metre quared A unit of pressure. 17 of 21 pivot The point about which a see-saw or lever balances. 18 of 21 pressure The force exerted on a certain area. 19 of 21 relative motion The difference between the speeds of two moving objects, or of a movingand a stationery object. 20 of 21 speed A measure of how far something travels in a given time. 21 of 21
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