7.2 Acceleration Flashcards
1
Q
acceleration
A
change of velocity per unit time (m/s)
vector quantity
2
Q
deceleration
A
values are negative
signify that the velocity decreases with respect to time
3
Q
how could you work out the acceleration of an object that doesn’t change direction
A
rate of change of velocity because there is no change in direction
4
Q
what is uniform acceleration
A
where the velocity if an object moving along a straight line changes at a constant rate
acceleration is constant
5
Q
acceleration equation
A
v-u/t
u - initial velocity
v - fine velocity
6
Q
what is non uniform acceleration
A
where the direction of motion of an object or its speed changes at a varying rate
7
Q
what does the gradient of a velocity time graph represent
A
acceleration
