TRANSPORT On The Move Flashcards
What is speed measured in?
M/s
What is speed?
The distance travelled by an object in one second.
How to measure average speed
Measure distance, measure time to travel distance and then use s=d/t
How to measure instantaneous speed
Measure length if card, measure time taken to pass through light hate. Speed = length of card/time through gate
What is acceleration?
How much an objects speed changes per second
What is acceleration measured in?
M/s*2
Give an example where instantaneous speed and average speed are different
A car journey which can drive on a straight section of road and also have to stop at traffic lights.
Why are hand timers less accurate than electronic timers.
Human reaction time
How can a speed time graph be used?
Distance under graph is equal to distance teavelled.
