Grasping Acceleration

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What is acceleration?
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Acceleration is the rate of change of velocity over time.
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How is acceleration calculated?
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Acceleration = (Final velocity - Initial velocity) / Time.
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What are common units for acceleration?
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Meters per second squared (m/s²).
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What does a positive acceleration indicate?
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An increase in velocity.
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What does a negative acceleration (deceleration) mean?
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A decrease in velocity.
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How can acceleration occur without changing speed?
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By changing the direction of motion.
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If a car’s velocity changes from 0 to 60 km/h in 5 seconds, what is its acceleration?
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3.33 km/h per second (converted to consistent units: approximately 0.93 m/s²).
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What is uniform acceleration?
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Acceleration that is constant over time.
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How does an increase in force affect acceleration?
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Increased force generally leads to increased acceleration (according to Newton's Second Law).
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What does zero acceleration imply about velocity?
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The velocity is constant.
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What role does mass play in acceleration?
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More mass requires more force to achieve the same acceleration (Newton's Second Law).
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If a bicycle comes to a stop, what type of acceleration is this?
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Negative acceleration or deceleration.
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How is acceleration different from velocity?
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Acceleration is the change of velocity over time; velocity is the speed with direction.
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What does an acceleration of 9.8 m/s² down mean?
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The object is accelerating downwards at 9.8 meters per second squared, typically due to gravity on Earth.
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Name a situation where acceleration is zero but speed is not.
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A car moving at a constant speed in a straight line.
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