Acceleration/Deceleration

Acceleration is the rate of change of ______

• Inertia

• time

• mass

• velocity

What is the formula for finding acceleration?

(2 correct answers)

• acceleration = change in speed/ time taken

• a = v-u/t

• acceleration = d/t

• acceleration = v-u x t

The standard SI unit for acceleration is?

• m/s²

• m/s

• cm/s

• km/s

Mr Beast was driving his car and when he reached his studio he slowed from 190m/s to 12m/s in 20 seconds. What was his acceleration rate?

• -8.9m/s²

• 8.9m/s²

• -9.4m/s²

• 9.4m/s²

John Cena’s speed increases from 15 m/s to 25 m/s as he runs downhill over a 5 second period. What is his acceleration rate?

• 2 m/s

• 5 m/s²

• 2 m/s²

• 3 m/s²

Spongebob was driving his car and when he reached Patrick's house he slowed from 230m/s to 19m/s in 24 seconds. What was his acceleration rate?

(write m/s² as m/s2 )

Barbie was driving her pink car and was travelling at 40km/h. She then accelerated to 70km/h in a span of 6.5 seconds. What was her acceleration rate?

• 2.18 m/s²

• 1.28 m/s²

• 1.38 m/s²

• 2.38 m/s²

initial speed = 80m/s

accelerated to 140m/s

Accelerated within the time of 35 seconds

What is the acceleration rate?

• 1.714 m/s²

• 1.814 m/s²

• 1.614 m/s²

• 1.514 m/s²

initial speed = 120m/s

accelerated to 335m/s

Accelerated within the time of 18 seconds

What is the acceleration rate?

• 12.94 m/s²

• 12.14 m/s²

• 11.94 m/s²

initial speed = 450m/s

accelerated to 875m/s

Accelerated within the time of 19 seconds

What is the acceleration rate?

• 22.77 m/s²

• 22.47 m/s²

• 22.37 m/s²

• 22.07 m/s²