Motion

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• Created by: Sam Evans
• Created on: 12-10-14 16:59
What is the average speed, m/s, of a car that completes a distance of 1.2 km?
20 m/s
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What does the distance-time graph for a stationary object look like?
Straight horizontal line
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What quantity has the unit m/s squared?
Acceleration
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What does a negative value for acceleration mean?
A deceleration
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What happens to the gradientn of the line on a distance-time graph if the speed increases?
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How can an object travelling at a steady speed be accelerating?
By changing its direction
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A car accelerates from rest to a speed of 40 m/s in 10 s. What is its acceleration?
4 m/s squared
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What part of a velocity-time graph represents distance travelled?
Area between the line and the x-axis
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A car accelerates from rest to a speed of 40 m/s in 10 s. What is its acceleration?
4 m/s squared
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What part of a velocity-time graph represents distance travelled?
Area between the line and the x-axis
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What is the initial speed of the car?
10 m/s
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What is the final speed of the car?
20 m/s
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What is the acceleration of the car?
1 m/s squared
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What is the distance the car travelled?
50 m
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Other cards in this set

Card 2

Front

What does the distance-time graph for a stationary object look like?

Back

Straight horizontal line

Card 3

Front

What quantity has the unit m/s squared?

Card 4

Front

What does a negative value for acceleration mean?

Card 5

Front

What happens to the gradientn of the line on a distance-time graph if the speed increases?