Speed Flashcards
1
Q
What is acceleration defined as?
A
The rate of change of velocity (divided by time)
2
Q
What is the difference between speed and velocity?
A
Velocity is like speed, but it must have a direction, eg. speed = 20mph , velocity = 20mph to the left
3
Q
What is the equation that we can use to work out acceleration?
A
acceleration = change in velocity
——————
time
4
Q
What is the smaller equation for acceleration?
A
a = v - u
——
t
5
Q
What is the unit for acceleration?
A
m/s/s = m/s2
6
Q
What are negative accelerations?
A
Decelerations/slowing down/retardations
7
Q
What is the equation that can be used to work out speed?
A
speed = distance
———
time
