5.4.10 Acceleration

• What is the definition of acceleration?

  The rate at which an object's velocity changes over time.
• What are the three types of acceleration?

  Positive, negative (deceleration), and zero (constant velocity).
• What is the formula for calculating acceleration?


  a = Δv / Δt
• What does Δv represent in the acceleration formula?

  Change in velocity (final velocity minus initial velocity).
• What does Δt represent in the acceleration formula?

  Time taken for the change in velocity.
• If a car increases its velocity from 20 m/s to 30 m/s over 5 seconds, what is its acceleration?

  2 m/s²
• What is uniform acceleration?

  Acceleration that is constant over time.
• Give an example of uniform acceleration.

  Free fall and objects in uniform circular motion.
• What is non-uniform acceleration?

  Acceleration that changes over time.
• What does the slope of a velocity-time graph represent?

  Acceleration.
• What does a straight line on a velocity-time graph indicate?

  Constant acceleration.
• What does a curved line on a distance-time graph indicate?

  Acceleration.
• If a velocity-time graph shows a slope of 3 m/s², what is the acceleration?

  3 m/s²
• What is the velocity of an object that falls freely from rest after 4 seconds, accelerating at 9.8 m/s²?

  39.2 m/s
• If a car slows down from 25 m/s to 10 m/s in 5 seconds, what is the deceleration?

  • 3 m/s²
• What is the summary of acceleration?

  • Acceleration: The rate of change of velocity.
  • Formula: a = Δv / Δt
  • Types: Uniform (constant) and non-uniform (changing).
  • Graphs:
  • Velocity-time graph: Slope represents acceleration.
  • Distance-time graph: Curved line indicates acceleration.
• What is the definition of acceleration in GCSE Physics?

  The rate at which an object's velocity changes over time.
• What does it mean if acceleration is positive?

  It means the object is speeding up.
• What does negative acceleration indicate?

  It indicates that the object is slowing down, also known as deceleration.
• What is the formula for calculating acceleration?


  a = Δv / Δt
• In the formula a = Δv / Δt, what does Δv represent?

  Change in velocity (final velocity minus initial velocity).
• In the formula a = Δv / Δt, what does Δt represent?

  Time taken for the change in velocity.
• If a car increases its velocity from 20 m/s to 30 m/s over 5 seconds, what is its acceleration?

  2 m/s²
• What is uniform acceleration?

  Acceleration that is constant over time.
• Give an example of uniform acceleration.

  Free fall and objects in uniform circular motion.
• What is non-uniform acceleration?

  Acceleration that changes over time.
• Provide an example of non-uniform acceleration.

  A car speeding up and slowing down at varying rates.
• What does the slope of a velocity-time graph represent?

  The acceleration of the object.
• What does a straight line on a velocity-time graph indicate?

  Constant acceleration.
• What does a curved line on a velocity-time graph indicate?

  Changing acceleration (non-uniform acceleration).
• What does a curved distance-time graph indicate?

  Acceleration.
• If a velocity-time graph shows a slope of 3 m/s², what is the acceleration?

  3 m/s²
• What is the acceleration of an object falling freely from rest after 4 seconds, given it accelerates at 9.8 m/s²?

  39.2 m/s
• If a car slows down from 25 m/s to 10 m/s in 5 seconds, what is the deceleration?

  • 3 m/s²
• What are the key points summarized about acceleration?

  • Acceleration is the rate of change of velocity.
  • Formula: \( a = \frac{\Delta v}{\Delta t} \)
  • Types: Uniform (constant) and non-uniform (changing).
  • Graphs:
  • Velocity-time graph: Slope represents acceleration.
  • Distance-time graph: Curved line indicates acceleration.
• Why is understanding acceleration important in physics?

  • Analyzes how objects move.
  • Helps in solving problems related to motion, force, and energy.