Question 1

What is the SI unit for current?

Accepted Answer

Amp (A)

Answer

Coulomb (C)

Answer

Joule (J)

Answer

Watt (W)

Question 2

What is the SI unit for resistance?

Accepted Answer

Ohm (Ω)

Answer

Volt (V)

Answer

Watt (W)

Answer

Amp (A)

Question 3

What is the SI unit for energy?

Accepted Answer

Joule (J)

Answer

Watt (W)

Answer

Coulomb (C)

Answer

Amp (A)

Question 4

What is the SI unit for power?

Accepted Answer

Watt (W)

Answer

Joule (J)

Answer

Amp (A)

Answer

Coulomb (C)

Question 5

What is the SI unit for voltage?

Accepted Answer

Volt (V)

Answer

Joule (J)

Answer

Amp (A)

Answer

Coulomb (C)

Question 6

Ohm's law states that more voltage will create ______ current, and more resistance will create ______ current.

Accepted Answer

more, less

Answer

less, more

Answer

less, less

Answer

more, more

Question 7

A voltage of 120 V running through your house is used to power a lightbulb with resistance 240 Ω. Calculate the current through the lightbulb.

Accepted Answer

0.5A

Question 8

Does a thick wire or a thin wire have more resistance? Why?

Accepted Answer

The thin wire has more resistance because not as many electrons can fit through it

Answer

The thin wire has more resistance because it can get clogged full of electrons and stop the current

Answer

The thick wire has more resistance because there is more surface area for heating

Answer

The thick wire has more resistance because there is more material

Question 9

If bulb B goes out, what will happen to bulbs A and C?

Accepted Answer

A will stay lit, C will go out

Answer

Both go out

Answer

A will go out, C will stay lit

Answer

Both stay lit

Question 10

What does component D represent?

Accepted Answer

switch

Question 11

When the circuit is closed, which statement best describes the brightness of the bulbs?

Accepted Answer

B is brighter than A because it experiences more current

Answer

A is brighter than B because it experiences more current

Answer

They are the same brightness because parallel circuits deliver equal voltage to each branch

Question 12

When the circuit is closed, which statement best describes the brightness of the bulbs?

Accepted Answer

B is brighter than A because it experiences more current

Answer

A is brighter than B because it experiences more current

Answer

They are the same brightness because they each get all 10 volts from the battery

Question 13

When the circuit is closed, which statement best describes the brightness of the bulbs?

Accepted Answer

A is brightest because it gets all 10 volts from the battery

Answer

B and C are the brightest because they have less resistance

Answer

They are the same brightness because they experience the same current

Answer

B is the brightest because it has low resistance and gets the current before it makes it to C

Question 14

Which combination of charges will repel each other

Accepted Answer

positive and positive

Answer

neutral and neutral

Answer

positive and negative

Answer

positive and neutral

Question 15

Copper is an electrical _________

Accepted Answer

conductor

Question 16

Conductors have _____ resistance, and insulators have _____ resistance

Accepted Answer

low, high

Answer

high, high

Answer

low, low

Answer

high, low

Question 17

Select particles with an electric charge.

Accepted Answer

proton and electron

Answer

neuton and proton

Answer

neutron, photon, proton

Answer

proton, electron and photon

Question 18

How does the electric force change when you bring a positive and a negative charge close together?

Accepted Answer

increase

Answer

decrease

Answer

not enough information

Answer

no change

Question 19

Rubbing a balloon against your hair to create static electricity is an example of _________ charging.

Accepted Answer

Friction

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