velocity, speed and vectors Flashcards
true or false velocity and speed ARENT the same thing.
true
whats speed?
a scalar quantity
what do scalar quantities only have?
a magnitude (size).
what do Scalar quantities, like speed not have?
a direction.
what does velocity describe?
an object’s direction as well as its speed.
whys velocity a vector quantity?
because it has a magnitude (or size) and a direction
why speed an example of a scalar quantity?
because you dont have to state its direction
true or false vector quantities have both a magnitude and direction
true
speed equation
speed=distance/time
average speed
total distance/ total time
if a car travels 60 miles in an hour, how long will it have travelled in mph?
60 mph
what would usain bolts average speed be if he travelled 100m in 10s?
10m/s (m/s= metres per second)
