Physics Final 1 Vocab

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Physics

38 Terms

1

Scaler

Magnitude

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2

Vector

Magnitude + Direction

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3

Speed

Scaler

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4

Velocity

Vector

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5

Acceleration

Gets faster/slower

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6

Distance

Length of Path Taken

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7

Displacement

Distance from one place to another

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8

Elastic Collision

When two things collide and they bounce off eachother

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9

Inelastic Collision

When two things collide and they stick together

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10

Newtons 1st Law

When an object is at rest it will stay at rest unless an unbalanced fore acts upon it, same with motion

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11

Intertia

Matter that stays in rest or in unchanging motion unless acted upon by an external force

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12

Equilibrium

The state in which all forces are exactly in balance so there is no movement

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13

Friction

The force felt between to surfaces when one attempts to slide against the other

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14

Force

The push or pull on an object with mass causes it to change its velocity

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15

Contact force

A force that is applied by objects in contact with eachother

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16

Action at a distance

A force that is applied without physical contact

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17

Newtons 2nd Law

Force=mass x acceleration (F=ma)

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18

Gravity

-9.31 m/s²

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19

Newtons 3rd law

Every action has an equal opposite reaction

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20

Momentum

Mass x Velocity

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21

Impulse

Force x Time

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22

Impulse-momentum Theorem

The impulse applied to an object will be equal to the change in its momentum

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23

Giga

G, 10^9

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24

Mega

M, 10^6

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25

Kilo

k, 10^3

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26

Deka

da, 10^1

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27

Deci

d, 10^-1

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28

Centi

c, 10^-2

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29

Milli

m, 10^-3

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30

Micro

Greek Letter mu, 10^-6

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31

Nano

n, 10^-9

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32

1-9 Sigfig Rule

All non zero numbers are significant

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33

Sandwich Sigfig Rule

Zeros between two non zero digits are significant

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34

Trailing Sigfig Rule

Trailing zeros to the right of the decimal are significant

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35

Leading Sigfig Rule

Leading zeros are not significant

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36

+, -, x, / Sigfig Rule

The answer should have the same number of decimal places as the limiting term

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37

Accuracy

The measure of how close a measurement is to the correct or accepted value of the quantity being measured

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38

Precision

The measure of how close you are in a series of measurements are to one another

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