Circuits and Resistance

What slows down the flow of electricity in a circuit?

• resistance

• voltage

• current

• source of electric current

Which one will still function if one light bulb goes out?

• Series

• Parallel

• Parallel

• Seriese

Will this circuit light the bulbs?

• Yes, both will light up

• Yes, but only the one on the right

• Yes, but only one on the left

• No, neither of the bulbs will light up

Tags

NGSS.4-PS3-2

Would would best complete this circuit?

• A wire

• A switch

• A battery

• A light bulb

What is resistance?

• the amount of push the electrical source supplies to the circuit

• how much a given device resists the flow of electric current

• flow of electric charge

• none of the above

​ (a)   is the opposition to the flow of electric charge. Resistance is expressed in ​ (b)   . A wire that is ​ (c)   , ​ (d)   , and ​ (e)   will have more resistance.

• Resistance

• Ohms

• thinner

• hotter

• longer

• cooler

• thicker

• shorter

The flow of electricity in a circuit is slowed down by (a)   .

• resistance

• voltage

• current

• source of electric current

Resistance in a circuit can be utilized to...

• produce heat

• produce light

• produce sound

• (all of these are possible)

Resistance is

• Measured using an ammeter

• Units are 'volts'

• How difficult it is for electrons to move through an object

• The continuous movement of electrons in a wire

A conductor has _____ resistance. An insulator has ______ resistance.

• Low; high.

• Negative; positive.

• Positive, negative.

• High, low.