Physics 1

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Describe what a scalar quantity is?
A quantity which only has magnitude (size)
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Give three examples of scalar quantities?
Distance, speed and mass
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Describe what a vector quantity is?
A quantity which has magnitude and direction
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Give three examples of scalar quantities?
Velocity, acceleration and force
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Why is velocity different to speed?
Velocity has a direction
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State the equation which links speed, distance and time, with units?
Speed (m/s) = Distance (m) / Time (s)
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what does a flat line on a distance time graph represent?
A stationary object
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Describe how to determine the speed of an object from a distance time graph
Gradient of the graph / Change in Distance (change in Y, Rise) divided by change in time (Change in x axis, run)
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what does a steeper line represent on a distance- time graph?
Faster Speed
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State the equation which links acceleration, velocity and time with units
Acceleration (m/s2) = Change in velocity (m/s) / Time (s)
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what does a flat line on a velocity time graph represent?
Constant speed
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Describe how acceleration is determined on a velocity time graph?
Gradient of the graph / Change in speed (change in Y, Rise) divided by change in time (Change in x axis, run)
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Describe how total distance travelled is determined on a velocity time graph?
Area under the graph
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State the value for acceleration due to gravity on Earth
10 m/s squared
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Describe a practical to determine a value for the acceleration due to gravity
Drop a ball from a measured height from rest, record the time taken for the ball to fall that distance. Calculate the final velocity from Distance / time. Repeat twice more and find an average. Change the distance 5 times and repeat practical.
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Other cards in this set

Card 2

Front

Give three examples of scalar quantities?

Back

Distance, speed and mass

Card 3

Front

Describe what a vector quantity is?

Back

Preview of the front of card 3

Card 4

Front

Give three examples of scalar quantities?

Back

Preview of the front of card 4

Card 5

Front

Why is velocity different to speed?

Back

Preview of the front of card 5
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