Section 10: Forces Part 1 Flashcards
1
Q
What is a vector quantity?
A
A quantity with magnitude and direction
2
Q
Give 2 examples of vector quantities.
A
Displacement, velocity
3
Q
What is a scalar quantity?
A
A quantity with magnitude only
4
Q
Give 2 examples of scalar quantities.
A
Distance, speed
5
Q
What is the typical speed for walking?
A
1.5m/s
6
Q
What is the typical speed for running?
A
3m/s
7
Q
What is the typical speed for cycling?
A
6m/s
8
Q
What is the typical speed for a car?
A
13 - 30m/s
9
Q
What formula relates speed, distance and time?
A
Speed = distance/time v = s/t
10
Q
What is velocity?
A
Speed in a given direction; rate of change of displacement
11
Q
What is acceleration?
A
Rate of change of velocity
12
Q
What is represented by the enclosed area in a velocity-time graph?
A
Distance travelled
