Speeding Up & Slowing Down GCSE Physics AQA (higher)

21Q quiz on practically every sentence in the AQA revision guide chapter 2.

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What are forces measured in?
Newtons
1 of 19
Objects exert...............
Equal and opposite forces on each other
2 of 19
What is the resultant force?
The overall effect on the object
3 of 19
What happens when the resultant force is zero?
There will be no effect
4 of 19
What happens when the resultant force on an object is not zero?
The object will accelerate
5 of 19
What is acceleration?
a change in velocity
6 of 19
resultant force =
mass x acceleration
7 of 19
The greater the resultant force on an object, .......................................
the greater it
8 of 19
What effect does the mass of an object have on the force needed for acceleration?
more force is needed
9 of 19
What is the resultant force if a vehicle is travelling at a steady speed?
zero
10 of 19
The faster the speed of a vehicle, the........................needed to make it stop in a particular distance.
greater deceleration
11 of 19
What is the thinking distance?
The distance a vehicle travels during the driver
12 of 19
What is the breaking distance?
The distance a vehicle travels under the breaking force
13 of 19
What can increase the thinking distance?
Driver tired or under influence of drugs
14 of 19
What can increase the braking distance?
Poorly maintained roads, bad weather conditions
15 of 19
What is the acceleration of an object falling freely close to the Earth's surface?
10m/s
16 of 19
What happens when an objects falls through fluid?
Frictional forces are exerted on it which eventually become equal to the weight of the object
17 of 19
What is the above process called?
terminal velocity
18 of 19
What is the weight of an object?
The force of gravity acting on an object
19 of 19

Other cards in this set

Card 2

Front

Objects exert...............

Back

Equal and opposite forces on each other

Card 3

Front

What is the resultant force?

Back

Preview of the front of card 3

Card 4

Front

What happens when the resultant force is zero?

Back

Preview of the front of card 4

Card 5

Front

What happens when the resultant force on an object is not zero?

Back

Preview of the front of card 5
View more cards

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