motion

?
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

Other cards in this set

Card 2

Front

how do you make the average speed?

Back

you make it by dividing the total distance by time that it took to run the race

Card 3

Front

what do you need to calculate speed?

Back

Preview of the front of card 3

Card 4

Front

how do you calculate the average speed?

Back

Preview of the front of card 4

Card 5

Front

what does a distance time graph show us?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all motion resources »