Acceleration

• What is the average acceleration of an object?

  Change in velocity divided by time taken
• How is acceleration calculated?

  Using the equation: acceleration = change in velocity ÷ time taken
• What are the units for acceleration?

  m/s²
• What does Δv represent in the acceleration equation?

  Change in velocity
• What does t represent in the acceleration equation?

  Time taken
• What is the equation for calculating acceleration?

  • Acceleration = change in velocity ÷ time taken
  • Units: m/s²
• What does the equation involving distance and acceleration represent?

  It applies to uniform acceleration
• What is the equation for final velocity in terms of initial velocity and acceleration?

  Final velocity² = Initial velocity² + 2 × Acceleration × Distance
• What does the variable 'a' represent in the equation for acceleration?

  Acceleration
• What does the variable 'v' represent in the final velocity equation?


  Final velocity
• What does the variable 'u' represent in the final velocity equation?

  Initial velocity
• What is the relationship between distance, acceleration, and velocity in the equation?

  Distance is multiplied by acceleration in the equation
• What are the key components of the acceleration equations?

  • Change in velocity (Δv)
  • Time taken (t)
  • Distance (s)
  • Initial and final velocities (u, v)
  • Acceleration (a)
• What is an object that slows down called?

  Decelerating object
• What type of acceleration does a decelerating object have?

  Negative acceleration
• What is the acceleration of an object falling freely near the Earth's surface?

  About $9.8 \text{ m/s}^2$
• What causes an object to initially accelerate when falling through a fluid?

  The force of gravity
• What happens to the resultant force acting on an object as it falls through a fluid?

  It eventually becomes zero
• What occurs when the resultant force on a falling object is zero?

  The object moves at its terminal velocity
• What is terminal velocity in the context of falling objects?

  • The constant speed of an object falling
  • Occurs when the force of gravity equals drag force
  • No net force acting on the object
• What are the forces acting on an object falling through a fluid?

  • Gravitational force (downward)
  • Drag force (upward)
  • Resultant force changes until it reaches zero