Voltage, Current, and Resistance

The potential difference between two points, A and B, in an electric field is 2.00 volts. The energy required to move a charge of 8.00 x 10^-19 coulomb from point A to point B is

• 2.50 x 10¹⁸ J

• 1.60 x 10^-18 J

• 6.25 x 10¹⁷ J

• 4.00 x 10^-19 J

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NGSS.HS-PS2-4

NGSS.HS-PS3-5

How much work is required to move 3.0 coulombs of electric charge a distance of 0.010 meter through a potential difference of 9.0 volts?

• 3.0 x 10^-2 J

• 3.0 J

• 27 J

• 2.7 x 10³ J

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NGSS.HS-PS2-4

NGSS.HS-PS3-1

Which object will have the greatest change in electrical energy?

• an electron moved through a potential difference of 4.0 V

• a metal sphere with a charge of 1.0 x 10^-9 C moved through a potential difference of 2.0 V

• a metal sphere with a charge of 1.0 x 10^-9 C moved through a potential difference of 4.0 V

• an electron moved through a potential difference of 2.0 V

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NGSS.HS-PS3-1

NGSS.HS-PS3-5

Moving 4.0 coulombs of charge through a circuit requires 48 joules of electric energy. What is the potential difference across this circuit?

• 190 V

• 12 V

• 4.0 V

• 48 V

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NGSS.HS-PS2-4

An MP3 player draws a current of 0.120 ampere from a 3.00-volt battery. What is the total charge that passes through the player in 900. seconds?

• 324 C

• 108 C

• 1.80 C

• 5.40 C

Voltage is measured in __.

• Volts

• Watts

• Coulomb

How must a voltmeter be connected?

• In series

• In parallel

• To a power station

What is the function of a cell?

• A conductor that connect the components together.

• A method of opening or closing the circuit.

• A source of electromotive force that drives electric charges around the circuit.

• A load in which moving charges can do a useful job.

What is 1 volt equivalent to?

• 1 A/s

• 1 C/J

• 1 J/C

• 1 m/s

What is this the definition of: the energy per charge (voltage) supplied by a source e.g. battery

• EMF

• Potential difference

• Voltage

• Current