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Describe motion?
Change in position of an object.
What is speed?
The rate of change of distance with time.
How do we calculate speed?
Distance /time
What is acceleration?
Change in speed ,or change in direction.
What is velocity?
The combine of speed with direction.
If a man walks 10 steps forward,then 5 steps backwards.This is speed or velocity?
Velocity
A girl cycles at 30 km/h, this describes her; speed or velocity?
Speed
Calculate the speed of a boy who runs 30m in 3h?
30/3=10m/h
A whale swims a distance of 120km in 30min? Calculate its speed
120/30=6km/min
A ship sails at 250km/h to the west. This Describes; speed or velocity
Velocity
A runner was running and he came to a curve in the track,this is
Acceleration
A bus moves a distance of 60km in 3min,what is its speed?
20km/min
A bird flies 40m in 10min,what was its speed?
4m/min
A dolphin swims 100 km in 20sec, what is its speed?
5km/sec
A car moves a distance of 10km in 1h,what is its speed?
10km /h
A train was moving 300km/h ,to the North ,what does this describes?
Velocity
