General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 17)
17.
Pick out the scalar quantity
Discussion:
33 comments Page 1 of 4.
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)
Robert Umera said:
1 decade ago
Well you don't need to worry if pressure has no direction as long as you know that force, acceleration and velocity have magnitude and direction and as such are vector quantities which makes pressure the odd one out.
Mumtaz said:
1 decade ago
Accepted pressure all are vector quantity therefore pressure is scalar.
Rejin said:
10 years ago
Scalar has only magnitude no direction.
Kabang apang said:
10 years ago
As we know from scalar define scalar is a qnty that have only magnitude. Here others have magnitude as well as direction except pressure. Therefore pressure is the correct option.
Hasnain abbasi said:
9 years ago
Whenever pressure is applied on any body then it does not move in specific direction that's why it does not have any specific direction.
MUHAMOOD MULINDA said:
9 years ago
Pressure is a scalar because it doesn't show the direction.
Lalima kharwar said:
9 years ago
Pressure does not have direction.
Elakiya jyothi said:
9 years ago
What is the meaning of phasor?
Sneha mandal said:
9 years ago
Pressure dose not have any direction.
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