P3

HideShow resource information
If the forces acting on a object are balanced, the object is...?
At constant speed
1 of 14
If the forces acting on an object are unbalanced what happens to the object?
It speeds up or slows down
2 of 14
What is the formula for force?
Force= mass x acceleration
3 of 14
Why may reaction time and thinking distance be increased? (4 things)
If the driver is: 1- tired, 2- under the influence of alcohol or other drugs, 3-travelling faster, 4- distracted or lacks concentration
4 of 14
Why might breaking distance increase? (3 things)
1- The road conditions are poor, 2- the car hasn't been properly maintained, 3-If the speed is increased
5 of 14
What factors affect braking distance? (4 things)
1- The mass of the vehicle, 2- the speed of the vehicle, 3- worn breaks, 4- tyres with little tread
6 of 14
How does thinking distance increase with speed?
Linearly
7 of 14
How does breaking distance increase with speed?
As a squared realtionship
8 of 14
What is the formula for work done?
Work done= force x distance moved (In the direction of the force)
9 of 14
What is weight?
A measure of the gravitational attraction on a body acting towards the centre of the earth
10 of 14
What is the formula for weight?
Weight= mass x gravitational field strength
11 of 14
What is power?
Power is the rate at which work is done
12 of 14
What is the formula for power?
Power= work done/time
13 of 14
How can the equation for power be rearranged? (2 ways)
work done= power x time and time taken = work done/power
14 of 14

Other cards in this set

Card 2

Front

If the forces acting on an object are unbalanced what happens to the object?

Back

It speeds up or slows down

Card 3

Front

What is the formula for force?

Back

Preview of the front of card 3

Card 4

Front

Why may reaction time and thinking distance be increased? (4 things)

Back

Preview of the front of card 4

Card 5

Front

Why might breaking distance increase? (3 things)

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 Forces and Motion resources »