Chapter 1 - Basic Math
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| The meaning of a number equal to the distance of that number from zero on the number line | Absolute value
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| A mathematical sentence or term consisting of letters and/or numbers that are multiplied, divided, added, subtracted, or raised to a power. | Algebraic Expression
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| A radiographically derived unit of the SI system, abbreviated as C/kg, formerly known as the Roentgen. | coulomb per kilogram (C/kg)
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| One quantity is a multiple of a second quantity | direct variation
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| A statement that contains an equal sign | equation
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| Equations that have the same solutions | equivalent equation
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| Unit of absorbed energy or dose; 1 joule of enery absorbed in each kilogram of absorbing material. | gray (Gy)
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| An equation in which all numeric values substituted for the unknown will give a true statement | identity
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| When two quantities are multiplied, their product is a constant. | inverse variation
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| The standard unit of mass, abbreviated as kg. | kilogram
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| Terms (numbers) with identical literal factors (usually noted by a letter) | like term
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| The standard unit of length, abbreviated as m. | meter
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| An equation that contains at least one unknown (variable) | open equation
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| The standard unit of time, abbreviated as s. | second
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| The product of the absorbed dose in gray and the radiation weighting factor | sievert (Sv)
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| Units of measurement were officially defined on an international level through the adoption of the? | SI Unit System
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| Coulomb per kilogram (C/kg), formerly the? | roentgen (R)
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| The gray (Gy), formerly the? | rad (radiation absorbed dose)
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| The sievert (Sv), formerly the? | rem (radiation equivalent man)
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| What are the seven base SI units? | 1. mass
2. length
3. time
4. electric current
5. temperature
6. amount of substance
7. luminous intensity
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| What are the fundamental units of measurement? | mass, length and time
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| One kilometer is equal to how many meters? | 1000 meters
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| What are the significant digits of 20.10 | 4
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| What are the significant digits of 192 | 3
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| What are the significant digits of 38.04 | 4
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| What are the significant digits of 2,700 | 2
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| What are the significant digits of 1,800.004 | 7
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| Change 0.0081 to scientific notation | 8.1 x 10^-3
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| Change 7,811.2 to scientific notation | 7.8112 x 10^3
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| Change 0.00024 to scientific notation | 2.4 x 10^-4
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| Change 78,432 to scientific notation | 7.8432 x 10^4
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| Change 3.164 x 10^2 into ordinary notation | 361.4
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| Change 1.876 x 10^-4 into ordinary notation | .0001876
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| When converting a fraction into a decimal, which operation should be applied to the numerator and denominator? A. addition B. multiplication c. division d. subtraction | division
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| When converting a percent to a decimal, the decimal point must be moved how many places? a. 2 to the left b. 2 to the right c. 1 to the left d. 1 to the right | a. 2 to the left
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| How many significant digits does 1,500 have? | 2
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| What is the new number when 0.0215 rounded to 2 significant digits? a. 0.02 b. 0.022 c. 0.0215 d. 00.2 | b. 0.022
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| What is the prefix for 10^1? | Deka
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| What is the prefix mGy a symbol for? | Milligray
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| Exposure Factors Chapter 1 - Basic Math |
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