5.6.3 Acceleration

• What is acceleration defined as?

  Rate of change of velocity
• Acceleration is a vector quantity, meaning it has both magnitude and direction
• Acceleration can only be positive.

  False
• What does positive acceleration indicate?

  Increasing velocity
• Acceleration is the rate of change of velocity
• Velocity describes both the speed and direction of motion.
• Match the property with the correct quantity:

  Definition ↔️ Rate of change of velocity

  Quantity ↔️ Vector (magnitude and direction)

  Sign ↔️ Can be positive or negative
• What is the definition of acceleration?

  Rate of change of velocity
• Acceleration is a scalar quantity.

  False
• Acceleration can be positive, indicating increasing velocity
• What is the formula for acceleration?

  a = \frac{v - u}{t}</latex>
• Acceleration is a vector quantity, meaning it has both magnitude and direction
• Negative acceleration indicates increasing velocity.

  False
• What are the two properties of a vector quantity?

  Magnitude and direction
• Steps to use the acceleration formula to solve a problem:

  1️⃣ Identify the given values for v, u, and t

  2️⃣ Substitute the values into the formula

  3️⃣ Calculate the acceleration

  4️⃣ Include the correct units (m/s²)
• What is the unit of acceleration?

  m/s²
• Uniform acceleration occurs when the velocity changes at a constant rate.
• What happens to acceleration in non-uniform acceleration?

  It fluctuates
• Match the type of acceleration with its characteristic:

  Uniform acceleration ↔️ Constant rate of change in velocity

  Non-uniform acceleration ↔️ Variable rate of change in velocity
• What is the formula for calculating acceleration?

  $a =$$\frac{v - u}{t}$
• A car accelerating from 10 m/s to 25 m/s in 5 seconds has an acceleration of 3 m/s².
• The formula to calculate acceleration is a = (v - u) / t, where 'a' represents acceleration
• The unit for acceleration is m/s².
• The variable 'v' in the acceleration formula represents final velocity.
• A car accelerating from 10 m/s to 25 m/s in 5 seconds has an acceleration of 3 m/s².
• What is the acceleration of a train that slows down from 30 m/s to 12 m/s in 9 seconds?

  -2 m/s²
• Acceleration is a vector quantity, meaning it has both magnitude and direction.
• Negative acceleration indicates decreasing velocity.
• What is the definition of acceleration?

  Rate of change of velocity
• The formula for acceleration is a = (v - u) / t, where 't' represents time taken.
• The symbol 'a' in the acceleration formula represents acceleration in m/s².
• Match the symbol with its representation and unit:

  a ↔️ Acceleration, m/s²

  v ↔️ Final velocity, m/s

  u ↔️ Initial velocity, m/s

  t ↔️ Time taken, s
• Order the following characteristics of uniform and non-uniform acceleration:

  1️⃣ Uniform acceleration: Velocity changes at a constant rate

  2️⃣ Uniform acceleration: Acceleration remains the same

  3️⃣ Non-uniform acceleration: Velocity changes at a variable rate

  4️⃣ Non-uniform acceleration: Acceleration fluctuates with time
• In uniform acceleration, the rate of change in velocity is constant.
• What is the unit for acceleration?

  m/s²
• To calculate acceleration using the formula a = (v - u) / t, you must first identify the given values for v, u, and t.
• The symbol 'a' in the acceleration formula represents acceleration in m/s².
• What does the symbol 'u' represent in the formula for acceleration?

  Initial velocity
• The unit for time taken in the acceleration formula is seconds
• Steps to use the acceleration formula

  1️⃣ Identify the given values for v, u, and t

  2️⃣ Substitute these values into the formula

  3️⃣ Calculate the acceleration a

  4️⃣ Include the correct units (m/s²)