Magnets (Chapter 7) Exam

Match the following Terms with their Definitions

• magnetic Domain

• This refers to the properties and interactions of magnets

• magnetic Field

• Is a region of space that surrounds a magnet and exerts a force on other magnets and objects made of Magnetic materials

• Magnetic Pole

• This is the attractive or repulsive force between electric charges and Magnets

• Magnetism

• The regions of a magnet that exert the strongest force in a magnet

• Electromagnetic Force

• The groups of atoms that aligned with the magnetic poles are called

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Match the following Definitions to the following Terms

• Electromagnet

• This is a temporary Magnet created when there is current in a wire coil

• Electromagnetism

• This is a device that uses an electromagnet to measure electric current

• Solenoid

• Is a device that changes electrical energy into mechanical energy

• Electric Motor

• A single wire wrapped into a cylindrical wire coil is called

• Galvanometer

• The interaction between electric charges and magnets is called

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Match the following definitions to the terms they go with

• Electromagnetic Induction

• Is electric current that reverses the direction in a regular pattern

• Direct Current

• Uses electromagnetic induction to transform mechanical energy into electrical energy

• Alternating Curent

• electrical current that is always in one direction through a wire

• Generator

• The generation of electric current by a changing magnetic field

• Turbine

• Is a large wheel that rotates when pushed by water, wind, or steam

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Match the correct term to the Definition:

A device that increases and decreases the voltage of an alternating current

• Turbine

• Transformer

• Solenoid

• Generator

A ___ can be used to change the voltage of an alternating current

• Magnet

• Galvanometer

• Transformer

• Electromagnet

Atoms at the South Pole of a magnet have

• only north magnetic poles

• only south magnetic poles

• No poles

• North and South Magnetic poles

A ___ is the region where the magnetic field of a magnet is strongest

• Magnetic pole

• Alternating current

• Direct Current

• Magneti cDomain

Which is NOT part of a generator?

• Wire Coil

• Magnet

• Turbine

• Battery

Tags

NGSS.MS-ETS1-1

___ does not change direction

• Magnetic pole

• alternating current

• Direct current

• Magnetism

Which describes the direction of the electric current in AC?

• it is constant

• it is direct

• it varies regularly

• it varies irregularly