General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 17)
17.
Pick out the scalar quantity
Discussion:
33 comments Page 4 of 4.
EXCELIDE said:
7 years ago
I thought it's acceleration.
Bogohe said:
7 years ago
The correct choice is B because pressure acts in all direction this has its root and prove in Crushing can experiment.
Vikas said:
7 years ago
Scalar:
A scalar is a physical quantity that has only a magnitude (size).
Vector:
A vector is a physical quantity that has both a magnitude and a direction.
Examples of scalar quantities:
-> mass has only a value, no direction
-> electric charge has only a value, no direction
Examples of vector quantities:
-> force has a value and a direction. You push or pull something with some strength (magnitude) in a particular direction
-> weight has a value and a direction. Your weight is proportional to your mass (magnitude) and is always in the direction towards the centre of the earth.
A scalar is a physical quantity that has only a magnitude (size).
Vector:
A vector is a physical quantity that has both a magnitude and a direction.
Examples of scalar quantities:
-> mass has only a value, no direction
-> electric charge has only a value, no direction
Examples of vector quantities:
-> force has a value and a direction. You push or pull something with some strength (magnitude) in a particular direction
-> weight has a value and a direction. Your weight is proportional to your mass (magnitude) and is always in the direction towards the centre of the earth.
(1)
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