Exploring Time and Velocity

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What is time in the context of motion?
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Time is the duration in which motion occurs.
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Why is time important in calculating speed?
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Time is needed to determine how long it takes to travel a certain distance, which helps calculate speed.
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What is the primary unit of time used in speed calculations?
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The primary unit is seconds.
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What is velocity?
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Velocity is speed with a specific direction.
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How is velocity different from speed?
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Velocity includes direction, whereas speed does not.
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Why can velocity be negative?
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Velocity can be negative because direction influences it, indicating movement in the opposite direction.
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What does it mean if an object has a velocity of 10 m/s north?
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The object moves 10 meters every second towards the north.
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How does one calculate average velocity?
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Average velocity = Total displacement ÷ Total time.
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What is instantaneous velocity?
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The velocity of an object at a specific moment in time.
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Explain the term 'displacement' in velocity calculations.
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Displacement is the change in position of an object, taking direction into account.
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Can velocity change even if speed remains constant?
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Yes, if the direction of motion changes.
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What happens to velocity if both speed and direction change?
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Velocity changes in both magnitude and direction.
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If a cyclist travels 100m north in 10 seconds, what is their velocity?
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10 m/s north.
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What is the velocity of an object at rest?
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0 m/s.
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What is required for an object to have a constant velocity?
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The object must have a constant speed and travel in a straight line (no change in direction).
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