This video tutorial explains the differences between speed and velocity, highlighting that speed is a scalar quantity with only magnitude, while velocity is a vector with both magnitude and direction. It demonstrates how to plot velocity-time graphs, using an example of Alice's journey to illustrate acceleration, constant velocity, and deceleration. The video concludes with fun facts about human running speeds and hints at future topics on velocity-time graphs.

What is the primary difference between speed and velocity?

• Speed can be plotted on a graph, but velocity cannot.

• Velocity includes direction, whereas speed does not.

• Velocity is only used for objects in motion.

• Speed is a vector, while velocity is a scalar.

What does a scalar measurement indicate?

• Neither magnitude nor direction

• Magnitude only

• Magnitude and direction

• Direction only

On a velocity-time graph, what does the horizontal axis represent?

• Time

• Acceleration

• Distance

• Velocity

What measurement is used for velocity on the graph?

• Feet per second

• Kilometers per hour

• Meters per second

• Miles per hour

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What indicates acceleration on a velocity-time graph?

• A horizontal line

• A vertical line

• A diagonal line moving upwards

• A diagonal line moving downwards

What does a horizontal line on a velocity-time graph indicate?

• Zero velocity

• Constant velocity

• Deceleration

• Acceleration

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How do you represent deceleration on a velocity-time graph?

• A diagonal line moving upwards

• A horizontal line

• A diagonal line moving downwards

• A vertical line

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What is the fastest recorded running velocity of a human?

• 8.5 meters per second

• 12.5 meters per second

• 10.3 meters per second

• 16.7 meters per second

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According to scientists, what is the potential maximum running speed of humans?

• 20 meters per second

• 16.7 meters per second

• 10.3 meters per second

• 12.5 meters per second

What does the area under a velocity-time graph represent?

• Acceleration

• Distance covered

• Velocity

• Time elapsed