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What is a scalar quantity?
A quantity that has magnitude (size) only.
What is a vector quantity?
A quantity that has both magnitude and direction.
Give three examples of scalar quantities
Distance, speed, time.
Give three examples of vector quantities
Displacement, velocity, force.
Why is velocity a vector quantity?
It has both magnitude (speed) and direction.
Which of the following quantities are vectors: speed, displacement, acceleration, distance?
Displacement and acceleration are vectors.