Speed and Velocity Flashcards
On a VELOCITY-TIME graph, what does an upwards slope mean?
Object increases in acceleration
On a VELOCITY-TIME graph, what does a downwards slope mean?
Object decreases in acceleration
On a VELOCITY-TIME graph, what does a flat horizonal slope mean?
Object stays at a constant/same speed
How do you calculate displacement from a VELOCITY-TIME graph
Calculate the area under the line.
How do you calculate the area of a square?
Width x Height
How do you calculate the area of a triangle?
0.5 x width x height
Define average speed
The distance travelled per unit of time
Define velocity
The speed in a particular direction.
Is velocity a scalar or vector?
Vector
Is speed a scalar or vector?
Scalar
What are the units for speed?
m/s
What are the units for velocity?
m/s
Do you need to include a direction with velocity?
YES!
In the velocity equation v=s/t.
What is s?
Displacement
