Science 1.1- 1.4 Flashcards
Motion & Energy Conservation
What is distance
Distance is a measure of how far apart objects are form each other.
What is the definition of speed
Speed is a measure of how fast
something moves.
What is average speed
Average speed is a measure of
how fast something moves overall.
Your speed at a particular instant
is called?
your instantaneous speed.
When converting km/h —> m/s
divide by 3.6
When converting m/s —> km/h
Multiply by 3.6
average speed =
distance travelled/ time taken
v= d/t
Distance =
Average speed * Time
d=v*t
Time =
Distance/average speed
t=d/v
What does a distance-time graph show?
how far an object travels as time progresses.
On a DISTANCE TIME GRAPH:
1. flat line indicates:
2. steep slope indicates:
3. gentle slope means:
4. steep slope means:
5. slope is also known as:
- that motion has stopped
- that object covers greater distance
- moving slow
- moving fast
- gradient
What is the gradient or slope equivalent to?
the object’s average speed over a time
interval.
What does a speed-time graph show?
an object’s speed changes over time.