PHYSICAL QUANTITIES AND MEASUREMENT MATRIKULASI LEVEL

1. Dimension can be defined as

• a physical quantity

• a technique or method which the physical quantity can be expressed in terms of combination of basic quantities

• algebraic quantities through the procedure of dimensional analysis

• a combination of basic quantities

M L T^–2 is the dimension of

• force

• coefficient of friction

• pressure

• acceleration

The uses of dimensional analysis are as below, EXCEPT

• to determine the unit of the physical quantity.

• to determine whether a physical equation is dimensionally correct or not by using the principle of homogeneity

• to derive/construct a physical equation.

• to resolve vector

Which one is not a scalar quantity

• distance

• mass

• pressure

• force

Vector quantity is defined as

• a combination of basic quantities

• a quantity with direction only

• a physical quantity with both magnitude and direction

• a physical quantity characterized by presence of magnitude only

which is not a vector quantity

• momentum

• displacement

• electric current

• force

What angle resulting scalar product of zero (minimum)

• 180^o

• 90⁰

• 0^o

• 60^o

What angle resulting scalar product of 1 (maximum)

• 180⁰

• 0^o

• 90^o

• 60^o

what angle resulting vector quantity is zero (minimum)

• 180^p

• 0^o

• 90^o

• 60^o

What angle resulting vector product of 1 (maximum)

• 180^o

• 0^o

• 90^o

• 60^o