What does a straight, diagonal line represent on a speed vs time graph?
constant acceleration
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15
What does "delta v" represent?
change in velocity (final velocity minus initial velocity)
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10
What does a horizontal line above the x axis represent on a speed vs time graph represent?
constant speed
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15
When does an object's velocity change?
speed up, slow down, change direction
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boom
Lose 50 points!
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fairy
Take points!
5
10
15
20
25
gift
Win 20 points!
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baam
Lose 25 points!
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10
What is the unit for distance?
m (km)
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10
What does a horizontal line on a distance vs time graph represent?
motionless
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10
What does negative slope represent on a distance vs time graph?
going back to start
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25
Explain the motion of the object in the graph.
slow constant speed away from start, stopped, slow constant speed away from start, fast constant speed home
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5
What is positive acceleration?
speeding up
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5
Define vector.
A quantity that includes both magnitude (size) and direction.
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20
Explain the difference between speed and acceleration.
Speed only considers the distance and object moves in a given time, which acceleration includes how quickly the speed is changing in a given time with direction
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10
What does a curved line represent on a distance vs time graph?