Summary
Summary Physical Science: Physics SAGs Matric Definitions 2019
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All the definitions required for matric IEB Physics.
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Some examples from this set of practice questions
1.
vector
Answer: a physical quantity that has both magnitude and direction
2.
scalar
Answer: a physical quantity that has magnitude only
3.
resultant vector
Answer: the single vector which has the same effect as the original vectors acting together
4.
distance
Answer: the length of path travelled
5.
displacement
Answer: a change in position
6.
speed
Answer: the rate of change of distance
7.
velocity
Answer: the rate of change of position or the rate of displacement or the rate of change of displacement
8.
acceleration
Answer: the rate of change of velocity
9.
weight
Answer: the gravitational force the Earth exerts on any object on or near its surface
10.
normal force
Answer: the perpendicular force exerted by a surface on an object in contact with it
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