IS7 - Unit 4 Test

Normally, atoms are electrically neutral because there are ____.

• more protons than electrons

• more electrons than protons

• equal numbers of protons and neutrons

• equal numbers of protons and electrons

The imbalance of electric charges on an object is called a ____.

• circuit charge

• static charge

• current circuit

• current charge

A material through which electrons do NOT readily flow is a(n)____.

• conductor

• insulator

• fuse

• transformer

Tags

NGSS.HS-PS2-5

Two objects will attract one another when they have ____.

• like charges

• the same amount of charge

• opposite charges

• no charge

Tags

NGSS.MS-PS2-3

One example of a good conductor is ____.

• copper

• glass

• wood

• rubber

An electric field gets stronger as you ____.

• get closer to a charge

• get farther from a charge

• add electrons to a positively charged object

• remove electrons from a negatively charged object

Tags

NGSS.MS-PS2-3

The separation of positive and negative charges due to electric field is called a(n) ____.

• static charge

• series circuit

• current charge

• induced charge

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The steady flow of electrons through a conductor is ____.

• a circuit

• an electric current

• an insulator

• resistance

Copper is used in household wiring because ____.

• it has a low resistance

• it is a good insulator

• it produces light when current passes through it

• it produces heat when current passes through it

Which of the following has the least resistance?

• a short, thick metal wire

• wood

• a long, narrow metal wire

• plastic