P2.3 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 expressed mathematically?

  As v minus u, where v is final velocity and u is initial velocity
• How do you calculate the acceleration of the car in the previous example?

  By dividing the change in velocity by the time
• Why can acceleration be negative?

  Because it indicates that the object is slowing down or decelerating
• What does uniform or constant acceleration mean?

  Acceleration remains the same throughout the time period
• If an object starts from rest, what is its initial velocity (u)?

  0 m/s
• What is the acceleration of an object that is dropped?



  9.8 m/s²
• Describe what acceleration means in words.


  Acceleration is the rate of change in velocity.
• In terms of Velocity, what does the letters U and V mean?


  U is initial velocity.

  V is final velocity.
• What is the formula that link acceleration, initial velocity, final velocity, and displacement? [distance]


  $2as=$$ve^2$$-\ u^2$

  
• What is the formula that link acceleration, velocity, and time? ( there's 3)


  1. a = change in velocity / t
  2. a = change in velocity / time
  3. a = v - u / t