25 cardsGED Test (High School Equivalency)
GED Key Facts: Maths, Language Arts, Science and Social Studies
25 flashcards on the formulas, rules and facts most often needed for the four GED subjects. Study material written for practice, not the official exam.
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Order of operations
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Terms in this deck (25)
1
Order of operations
Parentheses, exponents, multiplication and division (left to right), then addition and subtraction.
2
Percent change
(new - old) / old x 100.
3
Slope of a line
Rise over run: (y2 - y1) / (x2 - x1).
4
Area of a triangle
1/2 x base x height.
5
Area and circumference of a circle
Area = pi x r squared. Circumference = 2 x pi x r.
6
Pythagorean theorem
a squared + b squared = c squared, where c is the hypotenuse.
7
Mean, median, mode
Mean: the average. Median: the middle value. Mode: the most frequent value.
8
Complete sentence
A subject and a predicate that express a complete thought.
9
Subject-verb agreement
A singular subject takes a singular verb; the words between them do not change this.
10
Comma after an introductory clause
Put a comma after an introductory clause or phrase before the main clause.
11
Fact versus opinion
A fact can be checked; an opinion is a judgment or belief.
12
Main idea versus detail
The main idea is the central point; details support it.
13
Cell parts
Nucleus: DNA. Mitochondrion: energy. Ribosome: proteins. Membrane: boundary.
14
Photosynthesis
Carbon dioxide + water + light gives glucose + oxygen.
15
Newton's laws
1: inertia. 2: F = ma. 3: every action has an equal and opposite reaction.
16
Speed formula
Speed = distance / time.
17
Physical versus chemical change
Physical: no new substance (melting). Chemical: a new substance (rusting).
18
Rock types
Igneous (cooled magma), sedimentary (layers of sediment), metamorphic (heat and pressure).
19
Causes of the seasons
The tilt of the Earth's axis as it orbits the Sun.
20
Three branches of government
Legislative (laws), executive (carries out laws), judicial (interprets laws).
21
Checks and balances
Each branch can limit the powers of the others.
22
Bill of Rights
The first ten amendments; they protect individual freedoms.
23
Supply and demand
More supply lowers prices; more demand raises prices.
24
Primary versus secondary sources
Primary: created at the time. Secondary: written later about the event.
25
Inflation
A general rise in prices over time.