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Physics Day 1 > Intro to Physics and Measurements (1) > Flashcards

Intro to Physics and Measurements (1) Flashcards

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1
Q

What is physics?

A

The properties, behavior, and interaction of matter and energy.

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2
Q

What is the language of physics?

A

Mathematics

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3
Q

What are the subdivisions of Physics?

A

Classical Mechanics, Thermodynamics and Statistical Mechanics, Electromagnetism, Relativity, Quantum Mechanics

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4
Q

What is Electromagnetism?

A

study of electricity and magnetism

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5
Q

What is Thermodynamics and Statistical Mechanics?

A

study of energy

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6
Q

What is Classical Mechanics?

A

study of motion

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7
Q

What is Relativity?

A

study of the relationship of electromagnetism and mechanics

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8
Q

What is Quantum Mechanics?

A

study of physics on an atomic and subatomic level

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9
Q

What are basic quantities?

A

Foundations of all quantities in physics

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10
Q

What are derived quantities?

A

Combination of basic quantities

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11
Q

What are the basic quantities for length?

A

miles, light year, cm, m, in, ft

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12
Q

What are the basic quantities for mass?

A

g, kg, lb, ton, amu

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13
Q

What are the basic quantities for time?

A

s, min, hour, day, year

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14
Q

What is volume?

A

a substance’s mass per unit volume

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15
Q

What is the formula for a rectangular prism’s volume?

A

lwh

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16
Q

What is the formula for a cone’s volume ?

A

1/3(₶)r^2h

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17
Q

What is the formula for a sphere’s volume ?

A

4/3(₶)r^3

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18
Q

What is the formula for a cone’s volume ?

A

1/3₶r^2h

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19
Q

What is the formula for a cylinder’s volume ?

A

₶r^2h

20
Q

What is density?

A

substance’s mass per unit volume

21
Q

How can you explain density relative to water?

A

less dense than water = float

denser than water = sink

22
Q

SI unit of density?

A

kg/m^3

23
Q

Relationship of m,v, and ρ ?

A

m and rho are directly proportional

v and rho are inversely proportional

24
Q

What is SI?

A

International System or Systeme Internationale d’ Unites

25
Q

Length in SI and US Customary System

A

meter (m) in SI, foot (f) in US

26
Q

Time in SI and US Customary System

A

seconds (s) in SI and US

27
Q

Mass in SI and US Customary System

A

kg (kilogram) in SI and slug (lb s^2/ft) in US

28
Q

Force in SI and US Customary System

A

Newton (N) in SI and pounds (lb ) in US

29
Q

Si prefixes

A

tera, mega, giga, kilo, hecto, deca, deci, centi, mili, micro, nano, pico

30
Q

1 mi in ft

A

5280 ft

31
Q

1 kg in pounds

A

2.2

32
Q

How many minutes in a year?

A

525,600

33
Q

How many seconds in a day ?

A

86, 400

34
Q

cc?

A

cubic centimeter

35
Q

What is a scalar measurement?

A

quantity measured by magnitude alone

36
Q

What is a vector?

A

quantity described by magnitude and direction

37
Q

Properties of a vector?

A

Magnitude (length), Direction (where it is pointed)

38
Q

Represents a vector

A

A ray

39
Q

Parts of a ray

A

point (tail or origin)

head (pointed to a particular direction)

40
Q

Direction can be represented in two ways, what are they?

A

four primary directions, angles

41
Q

12 directions

A

North, East of North, North of East, East, South of East, East of South, South, West of South, South of West, West, North of West, West of North

42
Q

Angles of Direction

A

East (0 degrees)
North (90)
West (180)
South (270)

43
Q

Where are they headed, parallel vectors?

A

same direction

44
Q

Where are they headed, anti-parallel vectors?

A

same direction

45
Q

Two ways of vector addition?

A

Graphical and Component

46
Q

Sum of V1 and V2

A

resultant

47
Q

in a 30-60-90 triangle, what is the value of the side opp 30 and the side opp 60?

A

opp 30 - 1/2 (side opp 90)

opp 60 - sqrt3/2 (side opp 90)

Physics Day 1 (1 decks)

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