Motion Flashcards
1
Q
What is a scalar quantity? (with Example)
A
Only have a magnitude
- Speed
2
Q
What is a vector quantity? (with Example)
A
Direction and Magnitude
Velocity
3
Q
What is displacement formula?
A
Final Position - Initial Position
4
Q
What is the difference between speed and velocity?
A
Speed does not have a direction
10m/s
Velocity does:
10m/s East
5
Q
What is the speed of sound in air?
A
330m/s
6
Q
What is acceleration?
A
The rate of change in velocity
7
Q
What are the formulas for acceleration?
A
a = v -u / t
8
Q
What are the first and second laws of motion?
A
A resultant force is required to change the motion of an object.
If Non-zero resultant force acts on an object, then it will cause the object to accelerate.
9
Q
Hookes Law Formula
A
f = k x
force = constant x extension
