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18 Terms
1
Dimensional analysis
________ is used to check mathematical relations for consistency.
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2
Dimension
the physical nature of a quantity and the type of unit used to specify it.
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3
angle
In writing, the ________ gives the direction of a vector.
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4
Physics
________ is the study of our physical environment: the structure of matter and how these structures interact with each other.
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5
\-1
When a vector is multiplied by ________, its magnitude remains the same, but the direction of the vector is reversed.
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6
right triangles
For ________, the Pythagorean theorem can be used to solve a missing side.
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7
Trigonometry
________ is the study of relationships between the lengths and angles of a triangle.
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8
scalar quantity
A(n) ________ has only magnitude (how much of something)
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9
Scalar components
________ are the magnitudes of a vectors components.
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10
Dimension
the physical nature of a quantity and the type of unit used to specify it
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11
Unit vectors
Vectors with magnitudes of 1, but don’t have dimensions are called ________
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12
Resultant vector
The ________ is the sum or difference of two or more vectors.
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13
Derived units
________ can be obtained in terms of base units.
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14
Convert
You need to know how to ________ units because of two reasons: 1) any quantity can be measured in any units, and 2) only quantities with the same units can be added or subtracted.
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15
Scalar
A(n) ________ quantity has only a magnitude.
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16
Vector
A(n) ________ quantity has both a magnitude and direction.
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17
Pythagorean theorem, inverse trigonometric function
Separate answers with a comma and a space.
\ Adding vectors using components makes solving the resultant much easier because you can use the ________ to find the magnitude and a(n) ________ to find the angle.
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18
Arrows, bold faced
Separate answers with a comma and a space.
\ Vectors are usually denoted by ________ above the variable or are ________.
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