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Define a scalar quantity
It is a magnitude. It can be described fully with a single numerical value
Give 2 examples of a scalar quantity
mass and speed
Define a vector quantity
it has both a magnitude and a direction
Give 2 examples of a vector quantity
Velocity and displacement
Which property of a distance-time graph can be used to calculate speed?
Gradient (or Slope)
what is this d-t graph showing?
constant speed
what is this d-t graph showing?
at rest
what is this d-t graph showing?
accelerating
State an equation linking distance moved, time taken and average speed with their respective units.
Average speed(m/s) = Distance(m) / Time(s) or v=d/t
What is meant by acceleration? Give its unit.
the change in velocity per unit of time. m/s2
State an equation linking acceleration, change in velocity and time taken
Acceleration =(Change in velocity)/ time or a = (v-u) / t
v is final velocity and u is initial velocity
Which property of a velocity-time graph can be used to calculate acceleration?
Gradient (slope)
Which property of a velocity-time graph can be used to calculate distance travelled?
Area under the graph
Note 
Flashcard (102)