acceleration

• What is acceleration defined as?


  The rate of change in velocity
• How is acceleration measured?


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


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

  By subtracting initial velocity (u) from final velocity (v)
• 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 = final velocity - initial velocity / time
• What does it mean if acceleration is negative?

  It implies that the object is slowing down or decelerating
• What is average acceleration?


  It is the overall change in velocity over a period of time
• What is uniform or constant acceleration?


  Acceleration that remains the same throughout the time period
• When should you use the second acceleration equation?


  When given the unit of distance
• What happens to the initial velocity (u) if an object starts from stationary?


  It is zero
• If a ball is dropped and its final velocity just before hitting the ground is 7 m/s, what is its initial velocity?


  0 m/s
• What is the acceleration due to gravity for an object in free fall?


  1. 8 m/s²
• How do you calculate the height from which a ball is dropped if its final velocity is known?


  By rearranging the equation to find distance using v, u, and a
• What is the height from which a ball is dropped if its final velocity is 7 m/s and it accelerates at 9.8 m/s²?


  1. 5 meters
• What are the two important equations for calculating acceleration?

  1. Acceleration = change in velocity / time
  2. Distance = (v² - u²) / (2a)
• What factors affect the calculation of acceleration?


  • Change in velocity (Δv)
  • Time taken for the change
  • Distance traveled
  • Initial and final velocities