Scalars And Vectors Flashcards
1
Q
Scalar
A
Only tell us the magnitude of the quantity
2
Q
Vectors
A
Tell us both the magnitude and the direction of the quantity
3
Q
Adding non-perpendicular vectors methods
A
Scale diagram
Trig calculations
Vector resolution calculations
4
Q
Scale diagram
A
Pick a scale
Draw your vectors top to tail
Complete the triangle
Measure the length and angle of the side stating where the angle is from
5
Q
Trigonometric calculations
A
Cosine rule for side
Sine rule for angle
a^2 = b^2 + c^2 -2bcCosA
SinA/a = SinB/b
6
Q
Subtracting values
A
Draw both vectors tail to tail stemming from the same point and measure
