4.7 Vector - Time Graphs Flashcards
1
Q
What does the gradient represent?
A
The average acceleration
2
Q
What do uphill sections represent?
A
Acceleration
3
Q
What do downhill sections represent?
A
Deceleration
4
Q
What does a curve represent?
A
Changing acceleration
5
Q
How can you calculate the average acceleration of a point?
A
By finding the gradient of a tangent at that point
6
Q
What is the area under any section of the graph equal to?
A
The distance travelled in that time interval
7
Q
Describe how to estimate the distance travelled by counting the number of squares under the graph
A
- First you need to find out how many distance one square of the graph paper represents (in metres). To do this, multiply the width of square (in seconds) by the height of one square (in metres per second).
- Then you just multiply this by the number of squares under the graph. If there are squares that are partly under the graph, you can add them together to make whole squares.
