Chemistry

?
A ball travels across a room, it travels 5m in 2 seconds- calculate the speed:
2.5m/s. If you run 100m in 20 seconds- are you faster than the ball, yes
1 of 11
When a car is going at 40 mph, how far will it travel in 15 minutes?
10 miles
2 of 11
What does the gradient show on a distance-time graph?
The speed of an object moving
3 of 11
How would you calculate the relative speed of two trains travelling in the same direction?
Subtract their speeds
4 of 11
What are the units of force? What would you use to measure force?
N (Newtons) and a newton meter
5 of 11
What is a pivot?
A pivot is a point around which a rotation happens- like the middle of a seesaw
6 of 11
What is a moment? Give the formula for a moment:
Moments occur when a force acts on something which has a pivot. Moment = force x perpendicular distance
7 of 11
What does ‘balanced moments’ mean?
Anticlockwise movements = Clockwise movements
8 of 11
A force of 100n is put 1m away from the middle of a seesaw. What distance from the middle should a force of 50n be applied to balance the seesaw?
2m
9 of 11
What is pressure? Give the formula for pressure:
Pressure is how much force is put on a certain area. Pressure = force / Area
10 of 11
A force of 200n acts on an area of 2m2. Calculate the pressure:
100n/m2 or p
11 of 11

Other cards in this set

Card 2

Front

When a car is going at 40 mph, how far will it travel in 15 minutes?

10 miles

Card 3

Front

What does the gradient show on a distance-time graph?

Card 4

Front

How would you calculate the relative speed of two trains travelling in the same direction?

Card 5

Front

What are the units of force? What would you use to measure force?