physics

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A description of a rule of nature is

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31 Terms

1

A description of a rule of nature is

scientific law

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2

In the metric system (SI) what is the base unit for length

meter

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3

SI units biggest to smallest

Tera (12), Giga (9), Mega (6), Kilo (3), Hecto (2), Deka (1), Base Unit, Deci (-1), Centi (-2), Milli (-3), Micro (-6), Nano (-9), Pico (-12), Femto (-15)

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4

What is the base unit for mass

Kilograms

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5

Which prefix denotes the smallest amount

Femto or Pico

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6

A hypothesis can best be defined as a..

prediction

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7

A device with very small divisions on its scale can measure with high …..

precision

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8

A ____ relationship exists when one variable relies on the square of another

quadratic

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9

The equation y = ax² + bx + c, illustrates what kind of relationship?

quadratic

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10

What should a scientist do if his conclusion does not match his original hypothesis

revise the original hypothesis

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11

Explain the difference between a scientific law and a scientific theory

A theory is an explanation and a law is a statement of what will occur under specific conditions

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12

Describe the scientific method

The process of objectively establishing facts through testing and experimentation. Ask the question, conduct research, develop your hypothesis, test your hypothesis with experiment(s), record observations, examine results, draw conclusions, and share your findings.

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13

What is more precise, a beaker or graduated cylinder?

Graduated cylinder

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14

What axis does the independent variable use?

X-axis

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15

What axis does the dependent variable use?

y axis

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16

Why are significant digits important to science?

They show how precise a number is

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17
<p>What type of graph is this? </p>

What type of graph is this?

Linear

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18
<p>What type of graph is this? </p>

What type of graph is this?

Quadratic

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19
<p>What type of graph is this? </p>

What type of graph is this?

Inverse

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20

What is the general equation for linear graphs?

y = mx + b

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21

What is the general equation for quadratic graphs?

f(x)=ax2+bx+c

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22

What is the general equation for inverse graphs?

y = a/x

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23

Scientific theory

A broad explanation that is widely accepted because it is supported by a great deal of evidence

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24

Scientific Law

Statements based on repeated experiments or observations that describe or predict a range of natural phenomena.

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25

precision

How close measurements of the same item are to each other. The degree of the exactness of a measurement .

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26

accuracy

how close a measurement is to the “true” or “Accepted” value

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27

scalar

a quantity that is just a number without any direction. Ex: distance, time, or temperature.

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28

vector

a quantity that has both magnitude and direction

Ex: velocity, momentum, and force

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29

temperature scale of most lab thermometers

celsius

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30

SI unit of temperature

Kelvin

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31

What is an inverse relationship

A correlation between two variables when one variable increase is associated with a decrease in the other

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