Acceleration

• What is acceleration defined as?

  Rate of change in velocity
• How is acceleration measured?

  In meters per second squared
• What does the delta sign (Δ) represent?

  Change
• How can change in velocity (Δv) be expressed?

  As v minus u
• If a car accelerates from 15 m/s to 35 m/s in 5 seconds, what is the change in velocity?

  20 m/s
• What is the formula for calculating acceleration?

  Acceleration = Δv / time
• What is the acceleration of the car in the example?

  4 m/s²
• Why can acceleration be negative?

  It indicates slowing down or deceleration
• What does average acceleration refer to?

  Acceleration over a specific time interval
• What is uniform or constant acceleration?

  Acceleration that remains the same over time
• What additional variable is included in the second acceleration equation?

  Distance
• When should you use the second acceleration equation?

  When given the unit of distance
• What is the initial velocity of a dropped ball?

  Zero meters per second
• What happens if an object starts from stationary?

  Its initial velocity (u) is zero
• What is the acceleration due to gravity for a dropped object?

  9.8 m/s²
• How do you calculate the height from which a ball is dropped?

  Using final velocity, initial velocity, and acceleration
• If a ball is dropped and hits the ground at 7 m/s, what is the height?

  2.5 meters
• What is the formula used to find the distance when an object is dropped?

  Distance = (v² - u²) / (2a)
• How do you rearrange the formula to find distance?

  By dividing both sides by 2a
• What is the final velocity of the ball just before it hits the ground?

  7 m/s
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