physical revision 0.0 / 5 ? BiologyforceGCSEAQA Created by: yebo67Created on: 04-04-19 19:18 what is a magnitude ? it is a size of something. 1 of 12 what is scalar? the magnitude(speed,distance,time) 2 of 12 what is a vector ? direction and the magnitude (5 metres to the right ) 3 of 12 what is resultant force? a number of forces acting on an object and can be replaced by a single force 4 of 12 what is work done ? when a force causes a object to move direction. 5 of 12 what is the formula of work done ? work done=force x distance 6 of 12 what is friction ? it is the resistant of motion when one object rub against another 7 of 12 what is force ? a contact force working against in the opposite direction of a moving object. 8 of 12 factors that effect how much friction there is ? surface,mass of the object,lubricant 9 of 12 what is elastic ? when an object can regain its shape after its been squashed or stretched. 10 of 12 what is the Hooke's law ? extension happens when an object increase in length. 11 of 12 what is formula for force ? force=spring constant x extension 12 of 12
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