Page 10 - text book form physics kssm 2020

Physical Quantities
1.1 Physical Quantities

Measurement is a method to determine
the value of a physical quantity. Physical Height of Mount Kinabalu aaallululu
quantities consist of base quantities is 4 095 m.
and derived quantities.
Th e results of accurate measurements
enable us to make right decisions.
National Paralympic athlete, Mohamad
Ridzuan Puzi created a world record
with a recorded time of 11.87 s in the
Figure 1.1 shows examples of 100 m sprint event (T36 category) in
measurements involving physical the 2018 Asian Para Games.
quantities. State the physical
quantities.

Speed of the tiger, Panthera
–1
tigris is 49 km h to
–1
65 km h .

Figure 1.1 Examples of measurements
nts
of physical quantities

Time
Charge
Length
Momentum Frequency
You have studied base quantities
in Form 1. Force Electric current
Specific heat capacity
Density
Can you identify the base Energy
quantities in Figure 1.2? Impulse Temperature
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Amount of substance
Volume Mass
9HORFLW\ Acceleration

Power
Figure 1.2 Physical quantities
Time, length, electric current, thermodynamic temperature,
mass, luminous intensity and amount of substance are base Recall
quantities. Th e rest of the quantities in Figure 1.2 are Physical quantities
derived quantities. and their units

4 4 1.1.1
1.1.1