chapt 2 (kinematics) Flashcards
1
Q
what is speed? (1) scalar or vector? (1) formula? (1) how to find in graph? (1)
A
distance moved per unit time.
scalar quantity.
distance/time.
gradient of the distance-time graph.
2
Q
what is velocity? (1) scalar or vector? (1) formula? (1)
A
rate of change of displacement. vector quantity. displacement/time.
3
Q
what is acceleration? (1) scalar or vector? (1) formula? (1) how to find in graph? (1)
A
rate of change of velocity.
vector quantity.
new velocity - initial velo / time.
gradient of speed-time graph.
4
Q
uniform acceleration? (1)
A
constant rate of change of velocity.
