AQA A Level Physics 3.4.1.1 Scalars and vectors

Identify the following:

Groups:

(a) Scalar

,

(b) Vector

• Displacement

• Speed

• Weight

• Force

• Time

• Distance

• Temperature

• Acceleration

• Velocity

• Mass

A scalar has​ (a)   only, whereas a vector also has​ (b)   .

• magnitude
• direction
• number
• distance
• size
• angle

We add scalars by...

• Summing the magnitudes

• Drawing a scale diagram

• Using geometry and trigonometry

We add vectors by...

• Summing the magnitudes

• Drawing a scale diagram

• Using geometry and trigonometry

A person walks the path A-B-C-D

• component of weight equal to normal force

• friction force

• component of weight parallel to slope

• weight

• normal force

When the object is in equilibrium...

When the object is accelerating down the slope...