Physics Module Form 4 Chapter 1 : Introduction To Physics _________________________________________________________________________________________ 1.2 PHYSICAL QUANTITIES Base quantity 1 A physical quantity is…………………………………………………………………….. 2. List examples of physical quantities in the box. 3.The value of the measurements consists of a numerical magnitude and a unit. example : the length of a metre rule is 250 cm 4. Physical quantities are categorized into base quantities and derived quantities. 5. Base quantities are physical quantities that cannot be defined in terms of other physical quantities. 6.

Physics Module Form 4 Chapter 1 : Introduction To Physics _________________________________________________________________________________________ 1.2 PHYSICAL QUANTITIES Base quantity 1 A physical quantity is…………………………………………………………………….. 2. List examples of physical quantities in the box. 3.The value of the measurements consists of a numerical magnitude and a unit. example : the length of a metre rule is 250 cm 4. Physical quantities are categorized into base quantities and derived quantities. 5. Base quantities are physical quantities that cannot be defined in terms of other physical quantities.

1 Standard form = A x 10n , 1 < A < 10 and n = integer 2 Standard form is used to…………………………………………………………………... 3 Some physical quantities have extremely small magnitudes. Write the following quantities in standard form : a.Radius of the earth = 6 370 000 m =…………………………………………………. b.Mass of an electron = 0.000 000 000 000 000 000 000 000 000 000 911 kg =………...

c. Size of a particle = 0.000 03 m =……………………………………………………… b. Diameter

of an atom = 0.000 000 072 m =…………………………………………... c. Wavelength of light =

0.000 000 55 m =…………………………………………….. Prefixes

1. Prefixes are usually used to………………………………………………………………... 2. It will

be written…………………………………………………………………………… 3. The list of prefixes

: