Topic 9 distance time graphs Flashcards
On a distance time graph what goes on the x axis
Time
On a distance time graph what goes on the y axis
Distance
What are the units for time
Time = seconds
What does the gradient represent on a distance time graph
The speed something is moving at
What does a flat horizontal line represent
The object not moving
What does a steep line represent compared to a shallow line on a distance time graph
A steep line represents faster movement over a shorter period of time but a shallow line represents less movement over a certain period of time
What does a curved line represent
Acceleration or deceleration
How can we calculate acceleration if we know time
a = Δv/Δt.
How can we calculate acceleration if we don’t know time
v^2=u^2+2as
What is the unit of acceleration
(m/s2). Metres per second squared
What do the following symbols represent
V
U
A
S
T
Velocity
U= initial velocity
Acceleration
Speed
Time
