Electricity Chapter Test

When an atom has an equal number of protons and electrons, the charge of the atom is ...

• positive

• negative

• neutral

The third prong of an appliance is connected to....

• the line going to the electric plant

• the ground

• the line coming from the electric plant

• a circuit breaker or fuse

what is the substance that conducts electric current in and electrochemical cell

• electrolyte

• electrode

• insulator

• voltmeter

charges flow from ...

• places of lower electrical resistance to higher resistance

• places of higher electrical resistance to lower electrical resistance

• places of higher electrical potential energy to lower electrical potential energy

• places of lower electrical potential energy to higher electrical potential energy

Tags

NGSS.MS-PS3-2

according to Ohm's law, if there is a constant current in a circuit and voltage increases, resistance

• stays the same

• depends on the current

• decreases

• increases

if the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohm, what is the voltage difference across the light bulb?

• 12 V

• 0.2 V

• 20 V

• 5 V

In a series circuit, if more light bulbs are added, the bulbs become ...

• brighter

• dimmer

• hotter

• more resistant

what extends around a charged object?

• electric current

• static electricity

• electric field

• power

Tags

NGSS.MS-PS2-5

the difference in electrical potential energy between two places is called ...

• voltage

• friction

• resistance

• induction

Tags

NGSS.HS-PS3-2

the unit of current is the ...

• ohm

• volt

• amp

• electron