# Forces and Motion

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• Created by: Olivia27
• Created on: 27-04-15 19:32
How do you calculate average speed?
Distance/Time
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How do you calculate acceleration?
Change in velocity/Time
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How do you calculate a force?
Mass x Acceleration
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A horizontal line on a distance-time graph means what?
Speed
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A horizontal line on a velocity-time graph means what?
Acceleration
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Stopping distance is...
Thinking distance + Braking distance
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How can breaking and/or thinking distance be increased?
Speed
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On a distance-time graph the gradient is...
Speed
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On a velocity-time graph the gradient is...
Acceleration
9 of 13
A car has traveled 100 km in 20 minutes. What is the cars average speed?
5km/s
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A car increases velocity from +5m/s to +15m/s in 3 seconds, what is its acceleration?
3.3m/s
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A car has a mass of 10 kg and accelerates at 15m/s. What is the resultant force of the car?
150N
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Alex is driving a car when he sees a wild Sophia in the road. He stops the car just infront of this endangered animal. If Alex has a thinking distance of 4m and a braking distance of 6m, what will be Alex's stopping distance?
10m
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## Other cards in this set

### Card 2

#### Front

How do you calculate acceleration?

#### Back

Change in velocity/Time

### Card 3

#### Front

How do you calculate a force?

### Card 4

#### Front

A horizontal line on a distance-time graph means what?

### Card 5

#### Front

A horizontal line on a velocity-time graph means what?