Electricity Pre-Test

The space around a particle through which an electric charge can exert force is a(n)?

• resistance field

• electric field

• polarized field

• atomic field

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An electric charge will move between two position with different

• resistances

• amperages

• potentials

• currents

Tags

NGSS.HS-PS3-5

An electric current is a flow of

• charge

• resistance

• conduction

• insulation

Suppose you walk across a carpet, You touch an object and get a shock. The object you touched is most likely a(n)

• electric cell

• dry cell

• insulator

• conductor

Which of these would have the most resistance

• a long, thick, copper wire

• a short, thick, copper wire

• a long, thin, copper wire

• a short, thin, copper wire

An ampere is the standard unit of measure for

• resistance

• current

• electric potential

• charge

A current flows from a 6-volt battery through a wire with a resistance of 2 ohms. Use Ohm's law to calculate the amperage of the current.

• 3 amps

• 4 amps

• 8 amps

• 12 amps

Which of the following is an example of static charges that build up through contact?

• rubber soles on a wool carpet

• a doorknob near someone's hand

• hair near a charged balloon

• the ground below a storm cloud

Which of these is an example of charging by induction?

• a polyester shirt sticking to a person's jacket

• wool slippers being wiped on a rubber mat

• lightning striking a lightning rod

• a negatively charged glass rod held near a balloon

Lightning strikes a lightning rod instead of a house because

• the rod is positively charged when there is no storm

• the rod is negatively charged when there is no storm

• the house has lower resistance than the rod

• the rod has a lower resistance than the house

Tags

NGSS.MS-PS2-3