17. Motion, Forces and Conservation of Energy: Distance / Time Graphs Flashcards
1
Q
What are different characteristics of a distance/time graph? What do they tell you?
A
The gradient shows the speed
Flat line means object is stationary
Steeper gradient = faster
Curves = acceleration
2
Q
How do you find the speed of a distance/time graph
What is the formula
A
If graph curved, draw tangent and find gradient of tangent
Calculate average speed when object accelerating - divide total distance travelled by the time taken to travel that distance
Gradient = change in vertical / change in horizontal
