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Chapter 1
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Introduction To Physics
1
Base Quantities & Derived Quantities Base Quantities Measuring Instruments Length l
Mass m
Time t
meter m
kilogram kg
second s
Temperature Electric Current T I kelvin K
ampere A
SI Unit
Derived Quantities Quantity Volume Density
Relationship
Derived unit
Length × Breadth × Height Mass Volume
m3 kg m–3
Acceleration
Change of velocity Time taken
m s–2
Momentum
Mass × Velocity
kg m s–1
SI Prefixes & Symbols Prefix Symbol Value Example 1
Example 2
tera giga mega kilo hecto deca deci centi milli micro nano pico T
G
M
k
h
da
d
c
m
μ
1012
109
106
103
102
101
10–1
10–2
10–3
10–6
19.2 nanometer = 19.2 nm
52.8 gram 10−5
n
p
10–9 10–12
(Scientific notation)
= 19.2 × 10–9 m
(Conversion to SI unit)
= 1.92 × 10–8 m
(Standard form)
= 52.8 × 105 g
(Scientific notation)
= 52.8 × 105 × 10–3 kg
(Conversion to SI unit)
= 5.28 × 103 kg
(Standard form) © Marshall Cavendish ( Malaysia ) Sdn. Bhd.
Transparency
Introduction To Physics
1
Base Quantities & Derived Quantities Base Quantities Measuring Instruments Length l
Mass m
Time t
meter m
kilogram kg
second s
Temperature Electric Current T I kelvin K
ampere A
SI Unit
Derived Quantities Quantity Volume Density
Relationship
Derived unit
Length × Breadth × Height Mass Volume
m3 kg m–3
Acceleration
Change of velocity Time taken
m s–2
Momentum
Mass × Velocity
kg m s–1
SI Prefixes & Symbols Prefix Symbol Value Example 1
Example 2
tera giga mega kilo hecto deca deci centi milli micro nano pico T
G
M
k
h
da
d
c
m
μ
1012
109
106
103
102
101
10–1
10–2
10–3
10–6
19.2 nanometer = 19.2 nm
52.8 gram 10−5
n
p
10–9 10–12
(Scientific notation)
= 19.2 × 10–9 m
(Conversion to SI unit)
= 1.92 × 10–8 m
(Standard form)
= 52.8 × 105 g
(Scientific notation)
= 52.8 × 105 × 10–3 kg
(Conversion to SI unit)
= 5.28 × 103 kg
(Standard form) © Marshall Cavendish ( Malaysia ) Sdn. Bhd.
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