Speed/ acceleration Flashcards
1
Q
What is acceleration?
A
How quickly you are speeding up
2
Q
What is uniform acceleration?
A
This is accelerating at a constant rate
3
Q
How do you find average acceleration?
A
A=(v-u)/t
4
Q
What do the V and the U stand for?
A
v= final speed U= initial speed
5
Q
What is deceleration
A
Negative acceleration/ slowing down
6
Q
How do you estimate acceleration?
A
1) estimate how long it would take for something to stop for example 1 second
2) put the numbers into the equation (0-15)/1
3) work it out
=-15
7
Q
Is acceleration due to gravity uniform?
A
yes, it is roughly 10m/s
8
Q
What is the equation for uniform acceleration?
A
V^2-U^2= 2 X a x x
9
Q
What are the units a and x?
A
a= acceleration (m/s^2) x= distance (m)
10
Q
How do we work this out?
A
we must rearrange the equation
