Motion Flashcards
(18 cards)
What two quantities do you need to measure speed
Distance and time
Speed=
Distance ➗ time
Distance
Speed x time
Time=
Distance ➗ speed
1 kilometre
1000m
Hours to seconds
X3600
Hours to seconds
X3600
On a distance time graph what does it mean when distance realms the same as time goes on
Shown by a straight line we know there is no movement
On a distance time graph what does it mean when distance and time increase the same together
Shown by a diagonal running halfway through shows constant movement
On a distance time graph what does it mean when distance rapidly increases over a little period of time
Shown by a curved line swooping upwards we see acceleration
On a speed time graph what does it mean when speed stays at zero for as time passes
Shown by a straight line on the zero carrying over time we see no movement
Ona speed tie, graph what does the same speed over as time passes show
Shown by a straight line from the speed out we see constant movement
On a speed time graph what does it mean when speed rapidly increases over time
Shown by a diagonal upward line we see acceleration
The steeper the line
The faster the object is moving
Gradient
Rise(change in distance) ➗ run(time passed)
What can you tell on a speed time graph
The distance travelled b6 an object
How do you calculate the distance travelled on a speed time graph
Below the line if there is a:
Rectangle=bxh
Triangle=1/2 bxh
Average speed
Total distance ➗ total speed
