Mechanics Chapter 9 Flashcards
1
Q
Displacement-Time Graphs:
Horizontal line
A
Stationary
2
Q
Displacement-Time Graphs:
Diagonal gradient
A
Constant velocity
3
Q
Displacement-Time Graphs:
Changing gradient
A
Acceleration
4
Q
How is average velocity calculated?
A
Displacement / Time
5
Q
What is velocity?
A
The rate of change of displacement
6
Q
What does the gradient of a displacement-time graph represent?
A
Velocity
7
Q
What is acceleration?
A
The rate of change of velocity
8
Q
Velocity-Time Graphs:
Gradient
A
Acceleration
9
Q
Velocity-Time Graphs:
Straight Line
A
Constant acceleration
10
Q
Velocity-Time Graphs:
Area
A
Distance travelled
11
Q
What are the five suvat equations? (5)
A
v = u + at s = 1/2(u+v)t v^2 = u^2 + 2as s = ut + 1/2at^2 s = vt - 1/2at^2
12
Q
What is g? (2)
A
The constant downward acceleration due to gravity (if air resistance is ignored)
g = 9.8ms^-2
