What is meant by a scalar quantity?

Scalar quantities have magnitude (size) but not direction.

Answer in your head, out loud, or on paper, then tap the card to flip.

Give some examples of scalar quantities.

  1. Speed
  2. Distance
  3. Time
  4. Mass
  5. Energy
  6. Temperature 
  7. Volume

Answer in your head, out loud, or on paper, then tap the card to flip.

What is meant by a vector quantity?

Vector quantities have both magnitude (size) and direction.

Answer in your head, out loud, or on paper, then tap the card to flip.

Give some examples of vector quantities.

  1. Displacement
  2. Velocity
  3. Force
  4. Momentum
  5. Weight
  6. Acceleration

Answer in your head, out loud, or on paper, then tap the card to flip.

How can we find the resultant of two vectors that act in the same direction?

The resultant vector is found by adding the two vectors together. 

Answer in your head, out loud, or on paper, then tap the card to flip.

How can we find the resultant of two vectors that act in opposite directions?

The resultant vector can be found by subtracting the smaller vector from the larger vector. 

The resultant direction will be in the direction of the larger vector.


If the magnitude of one vector is negative, then you would add them together instead. 

Answer in your head, out loud, or on paper, then tap the card to flip.

How can we find the horizontal component of the vector P?

horizontal component = P x cos(30)

Answer in your head, out loud, or on paper, then tap the card to flip.

How can we find the vertical component of the vector P?

vertical component = P x sin(30)

Answer in your head, out loud, or on paper, then tap the card to flip.