physic - gravity and motion 0.0 / 5 ? FunFunFunNone Created by: Millie pCreated on: 04-02-17 11:29 what units can speed be mesured in miles per hour ,kilometres per hour ,metres per secound 1 of 34 why are they mesured in different units because they are for differnt distances 2 of 34 how do u calculate speed distance x time 3 of 34 what is called when there is a cahnge of speed deaccleration and accleration 4 of 34 how do u work out accleration change in speed (m/s) divided by time taken -s 5 of 34 large accerleration = large change in speed 6 of 34 change in speed formulae accleration x time 7 of 34 abby drives at 10m/s she acclerates at 4m/s 2 for 3 secs what speed does she reach 22m/s 8 of 34 force formulae mass x accleration 9 of 34 mass is material 10 of 34 balanced forces make a moving object travel at a steady speed 11 of 34 how do u make an moving object acclerate or deacclerate unbalanced fdorces .will make the moving object accerlatre or deacclerate in the direction of the resultant force 12 of 34 name the forces on a still object gravity upthrust( air resistance) 13 of 34 how can mass effect accleration the greater the mass the greater the force 14 of 34 accleration x mass force 15 of 34 gravity on earth is 10n/kg 16 of 34 how do u work out a moment force x distance from pivot 17 of 34 the pivot doesnt move in space 18 of 34 what is a moment the turning effect of a force 19 of 34 the moment is bigger if the force is larger ,larger distance from pivot 20 of 34 for turning forces on an object are balanced there must be the same clockwise moments as there are anti clockwwise moments 21 of 34 the drag is bigger the fater you move 22 of 34 what direction does gravity pull us on earth down - towards the centre of the earth 23 of 34 the mass of an object changes the amount of gravity 24 of 34 which of these has the most gravity earth sun moon 1) SUN 2) EARTH 3) MOON 25 of 34 WHY IS THERE NO DOWN IS SPACE because there is no gravity 26 of 34 the further you are away from the earth the weaker the gravity 27 of 34 how do we orbit the sun we are attraracted to the sun by gravity 28 of 34 what is weight mass x gravity 29 of 34 what is the gravity at the centre of the earth 0 because forces are balanced 30 of 34 further you are towards the centre the gravity becomes weajker true 31 of 34 which palnet is the force of gravity betweween the sun the weakest pluto - because its the furthest away 32 of 34 a planet wich has more gravity would make ypu weight bigger 33 of 34 how do satlites saty in there orbits grvaity - they have to be the perfect distae from the arth this means the gravity wont pull them to earth but they wont fly out to space either 34 of 34
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