motion 0.0 / 5 Physicsmotion OtherNone Created by: Isabella SofiaCreated on: 02-05-18 16:38 instantaneous speed the speed a runner is travelling at any time during a race 1 of 22 how do you make the average speed? you make it by dividing the total distance by time that it took to run the race 2 of 22 what do you need to calculate speed? you need to know the time and distance. 3 of 22 how do you calculate the average speed? you divide the total distance by the total time. 4 of 22 what does a distance time graph show us? it shows us the distance that an object travels in a certain time 5 of 22 what does the steepness of the line on the graph show? shows you the speed i.e very steep very fast 6 of 22 what does it mean if the line is horizontal it means the object is stationary. 7 of 22 ow is a graph not realistic normally you world measure it miless per hour not for example meteras per second. 8 of 22 gas pressure if there are more oliisions on the inside than the outside the balloon gets bigger 9 of 22 the changes in atmospheric pressure at altitude increases the pressure decreases 10 of 22 why would a climber have a tank of oxygen with him while climbing a mountain? there is smaller atmospheric pressure which makes it hard to breathe oxygen. 11 of 22 why does oxygen have to be compressed in tank? it has to be compressed because when it is there is a smaller volume so it takes up less space 12 of 22 why would a hot can collapse when put into cold water? it collapses as water lets the boiling steam out causing the outside air pressure to cause a large force to make the can collapse. 13 of 22 pressure in liquids the pressure in liquid acts in all directions 14 of 22 what is pressure pressure is a measure of how much force is applied over a certain area 15 of 22 what way does pressure act pressure acts in a direcion of 90 degrees when you are standing on the ground 16 of 22 how do you calculate pressure? (N/m2)=force(N) divided by area(m2) 17 of 22 pressure force divided by area 18 of 22 area force divided by pressure 19 of 22 force area times pressure 20 of 22 how do you measure pressure unit newtons per meter squared 21 of 22 equation for calculating the moment of force moment (Nm) = force(N) x perpendicular istance from the pivot (M) 22 of 22

## Comments

No comments have yet been made