Lesson #1 pres Powerpoint presentation

12 Physics Lesson #1
Physics studies fundamental questions
about two entities.
What are these two entities?
Physics studies fundamental questions
about two entities.
What are these two entities?

Matter: anything that has mass
Physics studies fundamental questions
about two entities.
What are these two entities?


Matter: anything that has mass
Energy: anything capable of doing
work on matter
by using a force to
move matter
Physics deals with measured quantities
Physics deals with measured quantities

Physicists use measuring instruments like rulers,
clocks, and balances to assign a number value to
physics “quantities”.
Physics deals with measured quantities


Physicists use measuring instruments like rulers,
clocks, and balances to assign a number value to
physics “quantities”.
Physicists classify measured quantities into two major
categories according to whether or not a quantity may
have a direction or not. What are these two physics
quantity types?
Physics deals with measured quantities


Physicists use measuring instruments like rulers,
clocks, and balances to assign a number value to
physics “quantities”.
Physicists classify measured quantities into two major
categories according to whether or not a quantity may
have a direction or not. What are these two physics
quantity types?
Vectors and Scalars
Comparing Vectors and Scalars
Comparing Vectors and Scalars
Scalars
Vectors
Comparing Vectors and Scalars
Scalars

Size or magnitude

No direction
Vectors
Comparing Vectors and Scalars
Scalars

Size or magnitude

No direction

Temperature, distance,
mass, speed, volume,
area, energy and work
Vectors
Comparing Vectors and Scalars
Scalars
Vectors

Size or magnitude

Size or magnitude

No direction

Has direction as well

Temperature, distance,
mass, speed, volume,
area, energy and work
Comparing Vectors and Scalars
Scalars
Vectors

Size or magnitude

Size or magnitude

No direction

Has direction as well

Temperature, distance,
mass, speed, volume,
area, energy and work

Position, displacement,
velocity, acceleration,
force, magnetic field
Comparing Vectors and Scalars
Scalars
Vectors

Size or magnitude

Size or magnitude

No direction

Has direction as well


Temperature, distance,
mass, speed, volume,
area, energy and work
T = -7.0 C

Position, displacement,
velocity, acceleration,
force, magnetic field
Comparing Vectors and Scalars
Scalars
Vectors

Size or magnitude

Size or magnitude

No direction

Has direction as well



Temperature, distance,
mass, speed, volume,
area, energy and work
T = -7.0 C
Two parts: number and
unit

Position, displacement,
velocity, acceleration,
force, magnetic field
Comparing Vectors and Scalars
Scalars
Vectors

Size or magnitude

Size or magnitude

No direction

Has direction as well



Temperature, distance,
mass, speed, volume,
area, energy and work
T = -7.0 C
Two parts: number and
unit


Position, displacement,
velocity, acceleration,
force, magnetic field
v = 120 km/h [N30E]
Comparing Vectors and Scalars
Scalars
Vectors

Size or magnitude

Size or magnitude

No direction

Has direction as well



Temperature, distance,
mass, speed, volume,
area, energy and work
T = -7.0 C
Two parts: number and
unit



Position, displacement,
velocity, acceleration,
force, magnetic field
v = 120 km/h [N30E]
Three parts: number,
unit and direction
Système Internationale or SI
Système Internationale or SI

A scientific measuring system with seven base or
fundamental quantities
Système Internationale or SI


A scientific measuring system with seven base or
fundamental quantities
Each of the base or fundamental quantities has an
associated base or fundamental unit
Système Internationale or SI



A scientific measuring system with seven base or
fundamental quantities
Each of the base or fundamental quantities has an
associated base or fundamental unit
All other measurable quantities and units are
combinations (+ - X / ) of the seven base quantities
and are called _________________ quantities and
units.
Système Internationale or SI



A scientific measuring system with seven base or
fundamental quantities
Each of the base or fundamental quantities has an
associated base or fundamental unit
All other measurable quantities and units are
combinations (+ - X / ) of the seven base quantities
and are called derived quantities and units.
The Seven Basic SI units
Fundamental Quantity

Length

Mass

Time

Current

Temperature

Amount

Luminous intensity
Fundamental Unit
The Seven Basic SI units
Fundamental Quantity

Length

Mass

Time

Current

Temperature

Amount

Luminous intensity
Fundamental Unit

meter (m)
The Seven Basic SI units
Fundamental Quantity
Fundamental Unit

Length

meter (m)

Mass

kilogram (kg)

Time

Current

Temperature

Amount

Luminous intensity
The Seven Basic SI units
Fundamental Quantity
Fundamental Unit

Length

meter (m)

Mass

kilogram (kg)

Time

second (s)

Current

Temperature

Amount

Luminous intensity
The Seven Basic SI units
Fundamental Quantity
Fundamental Unit

Length

meter (m)

Mass

kilogram (kg)

Time

second (s)

Current

Ampere (A)

Temperature

Amount

Luminous intensity
The Seven Basic SI units
Fundamental Quantity
Fundamental Unit

Length

meter (m)

Mass

kilogram (kg)

Time

second (s)

Current

Ampere (A)

Temperature

Degrees Kelvin (K)

Amount

Luminous intensity
The Seven Basic SI units
Fundamental Quantity
Fundamental Unit

Length

meter (m)

Mass

kilogram (kg)

Time

second (s)

Current

Ampere (A)

Temperature

Degrees Kelvin (K)

Amount

mole (mol)

Luminous intensity
The Seven Basic SI units
Fundamental Quantity
Fundamental Unit

Length

meter (m)

Mass

kilogram (kg)

Time

second (s)

Current

Ampere (A)

Temperature

Degrees Kelvin (K)

Amount

mole (mol)

Luminous intensity

candela (cd)
Short form for SI
Short form for SI

An acronym for the SI metric system just discussed is
given by the first letters in the SI base units of length,
mass and time
Short form for SI


An acronym for the SI metric system just discussed is
given by the first letters in the SI base units of length,
mass and time
meter kilogram second
Short form for SI



An acronym for the SI metric system just discussed is
given by the first letters in the SI base units of length,
mass and time
meter kilogram second
Sometimes SI metric is referred to as the mks
system, but there are other measurement systems
with different base or fundamental quantities
Other Measurement Systems
British Engineering System
Other Measurement Systems
British Engineering System

fps or foot-pound-second system
Other Measurement Systems
British Engineering System


fps or foot-pound-second system
used in Britain and in the U.S. in industry with
derived units such as the gallon, slug, horsepower
Other Measurement Systems
British Engineering System


fps or foot-pound-second system
used in Britain and in the U.S. in industry with
derived units such as the gallon, slug, horsepower
Cgs System
Other Measurement Systems
British Engineering System


fps or foot-pound-second system
used in Britain and in the U.S. in industry with
derived units such as the gallon, slug, horsepower
Cgs System

centimeter-gram-second metric system
Other Measurement Systems
British Engineering System


fps or foot-pound-second system
used in Britain and in the U.S. in industry with
derived units such as the gallon, slug, horsepower
Cgs System

centimeter-gram-second metric system

used in chemical engineering
☺Review question!!
In the SI or mks system, which of the following is not a
derived quantity?
A.weight
B.density
C.mass
☺Review question!!
In the SI or mks system, which of the following is not a
derived quantity?
A.weight
B.density
C. mass
Answer: C
☺Review question!!
In the SI or mks system, which of the following is not a
derived quantity?
A.weight
B.density
C.
mass
Answer: C
Density = mass/volume =kg/m3
☺Review question!!
In the SI or mks system, which of the following is not a
derived quantity?
A.weight
B.density
C.
mass
Answer: C
Density = mass/volume =kg/m3
Weight =
☺Review question!!
In the SI or mks system, which of the following is not a
derived quantity?
A.weight
B.density
C.
mass
Answer: C
Density = mass/volume =kg/m3
Weight = mass X acceleration = kg m/s2
SI Prefixes
SI Prefixes
Small
to
Large
Large to Very Large
10-24 =
10-3 =
1012 =
10-21 =
10-2 =
1015 =
10-18 =
10-1 =
1018 =
10-15 =
101 =
1021=
10-12
103
1024=
=
=
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 =
10-3 =
1012 =
10-21 =
10-2 =
1015 =
10-18 =
10-1 =
1018 =
10-15 =
101 =
1021=
10-12
103
1024=
=
=
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 =
10-2 =
1015 =
10-18 =
10-1 =
1018 =
10-15 =
101 =
1021=
10-12
103
1024=
=
=
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 =
10-2 =
1015 =
10-18 =
10-1 =
1018 =
10-15 =
101 =
1021=
10-12
103
1024=
=
=
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18 =
10-1 =
1018 =
10-15 =
101 =
1021=
10-12
103
1024=
=
=
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18 =
10-1 =
1018 =
10-15 =
101 =
1021=
10-12
103
1024=
=
=
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18 = atto (a)
10-1 =
1018 =
10-15 =
101 =
1021=
10-12
103
1024=
=
=
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
=
101
=
1021=
=
103
=
1024=
10-15
10-12
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
=
103
=
1024=
10-15
10-12
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
=
103
=
1024=
10-15
10-12
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
= pico (p)
103
=
1024=
10-15
10-12
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
= pico (p)
103
=
1024=
10-15
10-12
10-9 =
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
= pico (p)
103
=
1024=
10-15
10-12
10-9 = nano (n)
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
= pico (p)
103
=
1024=
10-15
10-12
10-9 = nano (n)
106 =
10-6 =
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
= pico (p)
103
=
1024=
10-15
10-12
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-24 = yocto (y)
10-3 =
1012 =
10-21 = zepto (z)
10-2 =
1015 =
10-18
= atto (a)
10-1
=
1018 =
= femto (f)
101
=
1021=
= pico (p)
103
=
1024=
10-15
10-12
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
1015 =
10-2 =
10-18
= atto (a)
10-1
= femto (f)
101
= pico (p)
103
10-24 = yocto (y)
10-15
10-12
=
1018 =
=
1021=
=
1024=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
1015 =
10-2 =
10-18
= atto (a)
10-1
= femto (f)
101
= pico (p)
103
10-24 = yocto (y)
10-15
10-12
=
1018 =
=
1021=
=
1024=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
= atto (a)
10-1
= femto (f)
101
= pico (p)
103
10-24 = yocto (y)
10-15
10-12
=
1018 =
=
1021=
=
1024=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
= atto (a)
10-1
= femto (f)
101
= pico (p)
103
10-24 = yocto (y)
10-15
10-12
=
1018 =
=
1021=
=
1024=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =
10-12
103
= atto (a)
= pico (p)
=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =
10-12
103
= atto (a)
= pico (p)
=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
=
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 =
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 =
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 =
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 = peta (P)
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 = peta (P)
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 =
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 = peta (P)
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 = exa (E)
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 = peta (P)
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 = exa (E)
10
= deci (d)
21=
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 = peta (P)
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 = exa (E)
10
= deci (d)
21= zetta (Z)
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 = peta (P)
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 = exa (E)
10
= deci (d)
21= zetta (Z)
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024=
SI Prefixes
Small
to
Large
Large to Very Large
10-21 = zepto (z)
10-3 = milli (m) 1012 = tera (T)
10-2 = centi (c) 1015 = peta (P)
10-18
10-1
10-24 = yocto (y)
10-15 = femto (f)
18 = exa (E)
10
= deci (d)
21= zetta (Z)
1
10
10 =deka(da)
10-12
103
= atto (a)
= pico (p)
= kilo (k)
10-9 = nano (n)
106 =mega(M)
10-6 = micro (μ)
109 = giga (G)
1024= yotta (Y)
Writing Large or Small Quantities
Writing Large or Small Quantities
Example:
The wavelength of red light is very small. It can be
written with all the zero placeholders in
form like this:
λ
λ = 0.000000631215 m (expanded form)
expanded
Writing Large or Small Quantities
Example:
The wavelength of red light is very small. It can be
written with all the zero placeholders in
expanded form like this:
λ
λ = 0.000000631215 m (expanded form)

too many digits for most calculators
Scientific Notation
Scientific Notation

number equal or bigger than one but less than ten X
power of ten
Scientific Notation


number equal or bigger than one but less than ten X
power of ten
sometimes called standard form
Scientific Notation


number equal or bigger than one but less than ten X
power of ten
sometimes called standard form
λ = 0.000000631215 m (expanded form)
How can we write this wavelength in scientific notation?
Scientific Notation


number equal or bigger than one but less than ten X
power of ten
sometimes called standard form
λ = 0.000000631215 m (expanded form)
How can we write this wavelength in scientific notation?
λ = 6.31215 X ___________________ ?
Scientific Notation


number equal or bigger than one but less than ten X
power of ten
sometimes called standard form
λ = 0.000000631215 m (expanded form)
How can we write this wavelength in scientific notation?
λ = 6.31215 X ___________________ ?
= 6.31215 X 10-7 m
Scientific Notation


number equal or bigger than one but less than ten X
power of ten
sometimes called standard form
λ = 0.000000631215 m (expanded form)
How can we write this wavelength in scientific notation?
λ = 6.31215 X ___________________ ?
= 6.31215 X 10-7 m

Enter in calculator as 6.31215 EXP (or E or EE) -7
Prefix Form
Prefix Form

Number expressed as ones, tens or hundreds times a
prefix in front of a unit name.
Prefix Form

Number expressed as ones, tens or hundreds times a
prefix in front of a unit name.
Example:
λ = 6.31215 X 10-7 m
Prefix Form

Number expressed as ones, tens or hundreds times a
prefix in front of a unit name.
Example:
λ = 6.31215 X 10-7 m

Change the power of ten to the closest power of ten
equal or less than the power of ten in scientific
notation and associated with a SI prefix
Prefix Form

Number expressed as ones, tens or hundreds times a
prefix in front of a unit name.
Example:
λ = 6.31215 X 10-7 m

Change the power of ten to the closest power of ten
equal or less than the power of ten in scientific
notation and associated with a SI prefix
λ = ___________X 10-9 m
Prefix Form

Number expressed as ones, tens or hundreds times a
prefix in front of a unit name.
Example:
λ = 6.31215 X 10-7 m

Change the power of ten to the closest power of ten
equal or less than the power of ten in scientific
notation and associated with a SI prefix
λ = 631.215 X 10-9 m
Prefix Form

Number expressed as ones, tens or hundreds times a
prefix in front of a unit name.
Example:
λ = 6.31215 X 10-7 m

Change the power of ten to the closest power of ten
equal or less than the power of ten in scientific
notation and associated with a SI prefix
λ = 631.215 X 10-9 m
λ = 631.215 nm
☺Review!!
Convert the following expanded form physics quantities
to standard and prefix form:
Electron charge
#1
q = -0.000 000 000 000 000 000 1602 C
Mass of moon
#2
m = 7360 000 000 000 000 000 000 0 kg
☺Review!!
Convert the following expanded form physics quantities
to standard and prefix form:
Electron charge
#1
q = -0.000 000 000 000 000 000 1602 C
= -1.602 X 10-19 C or -160.2 zC
Mass of moon
#2
m = 7360 000 000 000 000 000 000 0 kg
= 7.36 X 1022 kg or 73.6 Yg