Basic Ideas Flashcards

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1
Q

7 Base quantities

A
time t second s
length l metre m
mass m kilogram kg
temperature T Kelvin
current I ampere A
amount of substance n mole mol
luminous intensity candela cd
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2
Q

tera

A

10^12

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3
Q

giga

A

10^9

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4
Q

mega

A

10^6

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5
Q

kilo

A

10^3

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6
Q

deci

A

10^-1

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7
Q

centi

A

10^-2

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8
Q

milli

A

10^-3

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9
Q

micro

A

10^-6

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10
Q

nano

A

10^-9

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11
Q

pico

A

10^-12

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12
Q

femto

A

10^-15

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13
Q

Vector

A

Quantity with magnitude and direction

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14
Q

Scalar

A

Quantity with magnitude

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15
Q

Vector examples

A
displacement
velocity
weight
momentum
current
acceleration
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16
Q

Scalar examples

A
distance
speed
mass
energy
density
temperature
17
Q

Perpendicular Vectors

A

Draw rectangle
use a2+b2=c2 to find length
use tan to find angle

18
Q

Non-perpendicular vectors

A

Draw parallelogram

measure length and angle by hand

19
Q

Resolving vectors

A

Using SOHCAHTOA