7.2- ACCELERATION Flashcards
1
Q
What is the definition of acceleration?
A
change of velocity per unit time
2
Q
What is the unit for acceleration?
A
metre per second per second (ms-2)
3
Q
What quantity is acceleration?
A
vector
4
Q
What kind of value is deceleration?
A
negative
5
Q
As deceleration values are negative, what does this signify?
A
velocity decreases with respect to time
6
Q
What is uniform acceleration?
A
velocity of object moving along straight line changes at constant rate
7
Q
What is non-uniform acceleration?
A
direction of motion of object changes, or its speed changes, at varying rate
8
Q
How can acceleration be worked out on a velocity-time graph?
A
gradient of line on velocity-time graph
9
Q
How can increasing velocity be seen on a velocity-time graph?
A
gradient increases with time
