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Vectors and scalars - grade 10
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Vectors and scalars - grade 10

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The gr10 presentation on vectors and scalars

The gr10 presentation on vectors and scalars

Published in: Education, Technology

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  • 1. 1 Everything Science www.everythingscience.co.za 20. Vectors and scalars Physics: Mechanics Grade 10
  • 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 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 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 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. 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