Acceleration

Question 1

Remeber velocity

What is acceleration?

Accerlartion doe snot mean moving faster.

Answer 1

The rate of change in velocity

Remember velocity is speed with direction in motion (vector quantity)

Accelration can only occur if there is a change in velocity like a chnage in direction or speed.

Question 2

Remeber what is accelartion- the rate of change in velocity.

What is the equation for accelration?

Answer 2

Accelration= change in velocity/ time taken

In exam paper could be written as a= (traingle)v/t

Change in velocity= v-u (final velocity - intial velocity)

Question 3

What is the untits for Accerlartion?

Answer 3

m/s^2

the ^2 comes from velcoity=m/s and time=s so m/s^2

Question 4

What is the units for velocity?

Answer 4

m/s

Question 5

What is the units for time?

Answer 5

s

Question 6

If an object is speeding up is it accelarting of decelrating?

Answer 6

Accerlarting

It is getting faster

Question 7

If an object is slowing down is it accelrating or decelrating?

Answer 7

Decelerating

It is getting slower

Question 8

True or false?
The acceleration of an object can be positive or negative, depending on whether the object is speeding up or slowing down

Answer 8

True

If an object is speeding up is postive, if slowing down is negative.