Mechanics Flashcards
1
Q
Scalar quantities
A
Just have an amount (magnitude)
2
Q
Vector quantities
A
Have magnitude and direction
3
Q
Examples of vector quantities
A
Weight, acceleration, force and displacement
4
Q
Examples of scalar quantities
A
Time, mass, energy and distance
5
Q
How can an object be in equilibrium
A
If all forces acting on it are balanced and cancel each other out
6
Q
What is a moment
A
The force multiplied by the perpendicular distance from the pivot to the line of action of the force
7
Q
What is the principle of moments
A
The sum of the clockwise moments = the sum of the anticlockwise moments
8
Q
What is centre of mass
A
Is the single point you can consider all weight acts through
9
Q
A
10
Q
A
11
Q
A
12
Q
A
13
Q
A
14
Q
A
15
Q
A
