Electricity and Energy Flashcards

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1
Q

Is voltage measured in series or parallel

A

parallel

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2
Q

is current measured in series

A

yes

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3
Q

what is Ohm’s law

A

voltage across a resistor = current in a resistor x resistance of the resistor

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4
Q

when is voltage split

A

in series

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5
Q

when is voltage the same

A

in paralell

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6
Q

when is current split

A

in paralell

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7
Q

when is current the same

A

in series

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8
Q

what happens when you open a switch in series

A

the circuit is broken

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9
Q

what is the formula for power in terms of energy and time

A

P=E/t

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10
Q

what is the formula for power in terms of voltage and current

A

P=IV

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11
Q

Units for voltage

A

volts

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12
Q

units for current

A

amps

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13
Q

units for resistance

A

ohms

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14
Q

units for power

A

watts

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15
Q

units for energy

A

joules

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16
Q

units for time

A

seconds

17
Q

voltage…

A

determines the energy supplied to each electron

18
Q

current…

A

determines the number of electrons in a current

19
Q

what is the rsistance of an ammeter

A

Almost nonexistent

20
Q

what is the resistance of a voltmeter

A

Infinite

21
Q

define kinetic energy

A

the energy an object possesses by being in motion

22
Q

what is the formula for kinetic energy

A

Ek=1/2m(v squared)

23
Q

what is gravitational potential

A

the energy gained while rising to a height

24
Q

what is the formula for gravitational potential energy

A

Ep=mgh

25
Q

what is work done

A

the amount of energy it takes to do a task

26
Q

what is the formula for work done

A

Ew=Fd

27
Q

MEGA

A

x10(6)

28
Q

milli

A

x10(-3)

29
Q

kilo

A

x10(3)