SP1c-acceleration

Question 1

Acceleration meaning?

Answer 1

A change in velocity

Question 2

Is acceleration a scalar or a vector?

Answer 2

Vector

Question 3

What is the units of acceleration?

Answer 3

Meters per second squared

Question 4

What does an acceleration of 10m/s mean?

Answer 4

Each second the velocity increases by 10m/s

Question 5

What is the formula linking acceleration, velocity and time?

Answer 5

Acceleration = change in velocity / time taken

Question 6

What if an object accelerates but gets slower?

Answer 6

It’s called deceleration and will be a negative value

Question 7

What formula relates final velocity, initial velocity, acceleration and distance travelled?

Answer 7

(Final velocity)^2 - (initial velocity)^2 = 2 x acceleration - distance

Can also be written:
x= v^2 - u^2 / 2 x a

Question 8

a = (v - u)/t

What does each letter stand for?

Answer 8

a = acceleration
v = final velocity 
u = initial velocity 
t  = time taken for velocity to change

Question 9

Why does an object in free fall move downwards?

Answer 9

Due to the force of gravity acting upon it

Question 10

What’s acceleration due to gravity?

Answer 10

Constant 9.8 m/s^2 but can often be rounded to 10 m/s^2

Question 11

What symbol often represents acceleration due to gravity?

Answer 11

g