Scalar and vector quantities
Vector quantities change....
When their magnitude changes, direction changes, magnitude and direction both change.
Scalar quantities change....
When their magnitude changes.
What is vector quantity?
A quantity that has magnitude and acts in a particular direction is described as vector.
What is scalar quantity?
A quantity that has magnitude but no particular direction is described as scalar.
Vector qualities include:
Displacement Velocity Acceleration Force Weight Momentum
Scalar quantities include:
Distance Speed Time Power Energy
Why is speed a scalar quantity?
It is the rate of change in the distance travelled by an object, while velocity is a vector quantity - it is the speed of an object in a particular direction.
What quantity is speed?
Scalar
The difference in two vectors quantities is
final vector - initial vector
The difference in two scalar quantities is
large value - small value