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Everything Science www.everythingscience.co.za
20. Vectors and scalars
Physics: Mechanics
Grade 10
2
Everything Science www.everythingscience.co.za
Vectors and scalars
A scalar is a physical quantity with magnitude only.
...
3
Everything Science www.everythingscience.co.za
Directions and resultants
The direction of a vector can be indicated by r...
4
Everything Science www.everythingscience.co.za
Properties of vectors
● Two vectors are equal if they have the same magni...
5
Everything Science www.everythingscience.co.za
For more practice or to ask an expert for help on this
section see:
www.e...
5
Everything Science www.everythingscience.co.za
For more practice or to ask an expert for help on this
section see:
www.e...
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Vectors and scalars - grade 10

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The gr10 presentation on vectors and scalars

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Vectors and scalars - grade 10

  1. 1. 1 Everything Science www.everythingscience.co.za 20. Vectors and scalars Physics: Mechanics Grade 10
  2. 2. 2 Everything Science www.everythingscience.co.za Vectors and scalars A scalar is a physical quantity with magnitude only. A vector is a physical quantity with magnitude and direction. Vectors may be represented as arrows where the length of the arrow indicates the magnitude and the arrowhead indicates the direction of the vector.
  3. 3. 3 Everything Science www.everythingscience.co.za Directions and resultants The direction of a vector can be indicated by referring to another vector or a fixed point (e.g. 30° from the river bank); using a compass (e.g. N 30° W); or bearing (e.g. 053°). The resultant vector is the single vector whose effect is the same as the individual vectors acting together.
  4. 4. 4 Everything Science www.everythingscience.co.za Properties of vectors ● Two vectors are equal if they have the same magnitude and the same direction. ● A negative vector is a vector that has the opposite direction to the reference positive direction. ● When vectors are added, we need to take into account both their magnitudes and directions. ● The equilibrant is the vector which has the same magnitude but opposite direction to the resultant vector.
  5. 5. 5 Everything Science www.everythingscience.co.za For more practice or to ask an expert for help on this section see: www.everythingscience.co.za Shortcode: ESAGH
  6. 6. 5 Everything Science www.everythingscience.co.za For more practice or to ask an expert for help on this section see: www.everythingscience.co.za Shortcode: ESAGH

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