1.2 Acceleration

Question 1

What is acceleration?

Answer 1

Acceleration is how quickly the velocity is changing.

Question 2

What is the equation for acceleration in words?

Answer 2

Acceleration = change in velocity over time

Question 3

What is the equation for acceleration in symbols?

Answer 3

a = (v-u) / t

v = final velocity
u - initial velocity

Question 4

What does a negative acceleration mean and what is the term for it?

Answer 4

That the object is slowing down

Deceleration

Question 5

What is the unit for acceleration?

Answer 5

m/s^2

Question 6

What is uniform acceleration?

Answer 6

Constant acceleration (uniform change in velocity)

Question 7

What is the equation for uniform acceleration?

Answer 7

v^2 - u^2 = 2 * a * d

v = final velocity
u = initial velocity
a = acceleration
d = distance

Question 8

What is meant by the term ‘free fall’?

Answer 8

When you assume only gravity is acting on the object as it falls

Ignore other forces like air resistance

Question 9

What is the acceleration due to gravity?

Answer 9

9.8 m/s^2