Physics 1

Question 1

Physics

Answer 1

“the study of matter and energy and the interaction between matter and energy” elementary definition

“ordered knowledge of natural phenomena and the rational study of the relations between concepts in which phenomena are expressed” W.C. Dampler

Question 2

History of Physics

Answer 2

1. Beginnings in Ancient Egypt and Babylon
2. Ancient Greece & the Aristotelian Paradigm (44 century BC to
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3. Newtonian Physics, and the Newtonian Paradigm. (17th century AD to 20th century AD)
4. Modern Physics and Einsteinian Paradigm, (20th century
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Question 3

Beginnings in Ancient Egypt and Babylon

Answer 3

Egyptians gathered info about the seasons for the purpose of planting crops.
Babylonians gather info about the stars and used it to navigate ships The info gathered was not used for analytically (used for practical purpose)

Question 4

Ancient Greece & the Aristotelian Paradigm (44 century BC to 11th century Ad)

Answer 4

Influenced greatly by the questioning of philosophers (Aristotle, Copernicus, Plato, Socrates).
Many questions about properties of nature and many solutions are offered
This type of science which took place in this era, lacked experiments and testing of theories.

Question 5

Newtonian Physics, and the Newtonian Paradigm. (17th century AD to 20th century AD)

Answer 5

Mathematics became an important part of science
Renaissance is a time of renewal and questioning of old ideas.
Influenced greatly by Copernicus, Galileo, Kepler, and Newton.
Theory is not accepted, no facts, but instead were tested through experimentation
Father of modern science (Newton)

Question 6

Modern Physics and Einsteinian Paradigm, (20th century
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Answer 6

Development of modern physics (subatomic particles, physics, and cosmology etc.)
influenced greatly by Einstein’s work and based upon theories of relativity
Theories related to physics become abstract and difficult to comprehend using peoples senses.

Question 7

Paradigm

Answer 7

an era of time where all scientific thought centres around the ideas of certain individuals or groups of
people

Question 8

The Scientific Method

Answer 8

1. Curiosity is aroused
2. Recognize and state the problem
3. Make a hypothesis (a scientific guess) to answer the problem
4. Experiment
5. Offer predictions for other situations. Make generalizations, conclusions, or design new scientific models, laws or theories,

Question 9

Fundamental Physics Quantities

Answer 9

Length (space) . Metres (m)
Time seconds (s)
Matter (mass) kilograms (kg)
volume Litres (L)

Note: all other units are derived from these fundamentel units

Question 10

Order of Magnitude

Answer 10

• defined as “the power of ten” closest to the “number”
• is ar indication of bigness or smallness of a #
• if the mantissa (# out front) is 5 or larger increase the exponent by 1
• If the mantissa is less than 5: keep the exponent the same

Question 11

Colours of the light spectrum/rainbow

Answer 11

ROY G BIV
- The order of light waves from longest to shortest wave length is ROY G BIV (Red has the longest wavelength of visible light, and violet has the shortest wavelength of visible length)
Also, red has the lowest frequency and violet has the highest frequency

Question 12

C = λf

Answer 12

λ= wavelength (m) (y is called lambda)
f= frequency
C= speed of light
- 3.0 x 10^8 m/s

Question 13

speed of light

Answer 13

3.0 x 10^8 m/s

Question 14

illuminance

Answer 14

E = Ρ/ 4 π d^2

Question 15

Colour

Answer 15

rainbows are kinda like a reflection of light
the violet arch is of on the bottom red is on the “top” of the arch

violet is on the bottom bc it has the shortest wavelength, and bends the most. Red is at the top bc it has the longest wave length and bends the least

we can reproduce a rainbow ( the light spectrum) by using a prism