Section 4 - Mechanics Flashcards
1
Q
What is a Vector quantity?
A
A quantity with magnitude and direction.
2
Q
What is a Scalar Quantity?
A
A quantity where there is only magnitude.
3
Q
What is displacement?
A
The vector quantity of distance.
4
Q
Formula for the Horizontal component =
A
(Vx) = V Cos (θ)
5
Q
Formula for the Vertical component =
A
(Vy) = V Cos(θ)
6
Q
Sin(θ)=
A
Cos(90-θ)
7
Q
If displacement is 0m then velocity is…
A
0ms^-1
8
Q
What is Equilibrium?
A
A state in which opposite or opposing forces are equal.
9
Q
Sin/Cos=
A
Tan
10
Q
What is a couple?
A
A pair of forces of equal size which act parallel to each other but in the opposite direction. They are coplanar.
11
Q
What is the support force?
A
The upward force that balances the weight of an object on a surface.
12
Q
What does a couple produce?
A
A turning effect.
