What is electromagnetic induction ?

a device that increases or decreases the voltage of alternating current

the perfect conductivity shown by certain substances at extremely low temperatures

What is a generator ?

a machine that converts mechanical energy into electrical energy

an electronic device that increases the strength of an electric signal

a device that increases or decreases the voltage of alternating current

What is an amplifier ?

an electronic device that increases the strength of an electric signal

a machine that converts mechanical energy into electrical energy

a device that increases or decreases the voltage of alternating current

What is an electric motor ?

a machine that converts mechanical energy into electrical energy

an electronic device that increases the strength of an electric signal

a device that increases or decreases the voltage of alternating current

What is a transformer ?

a device that increases or decreases the voltage of alternating current

an electronic device that increases the strength of an electrical signal

a machine that converts mechanical energy into electrical energy

What is a maglev train ?

a train that lifts off the tracks and uses superconductors as a power source

a train that stays on the tracks and uses superconductors as a power source

a train that lifts off the tracks and uses semiconductors as a power source

What is superconductivity ?

the perfect conductivity show by certain substances at extremely low temperatures

the perfect conductivity show by certain substances at extremely high temperatures

the perfect conductivity show by certain substances at extremely low electrons

the perfect conductivity show by certain substances at extremely high temperatures

One part of a freely swinging magnet always points ______________________?

to Earth’s magnetic pole in the Northern Hemisphere

to Earth’s magnetic pole in the Southern Hemisphere

to Earth’s magnetic field in the Northern Hemisphere

to Earth’s magnetic field in the Southern Hemisphere

Magnetic poles that are unlike, do what?

strenghthen the magnetic fieold

The closer together a magnet’s magnetic field lines are, _____________?

the stronger the magnetic field

the more attracted they are to each other

the more it loses its magnetism

What is a transformer ?

A device that increases or decreases the voltage of alternating current

A machine that converts mechanical energy into electrical energy

An electronic device that increases the strength of an electric signal

What is a magnetsophere ?

The part of the conductivity shown by certain substances at extremely low temperatures

A bar of iron wrapped wir a coil of wire carrying an electric current

Openscied 8.3 Lesson 6 Magnet

Authored by Charles Martinez

Other Sciences

8th Grade

Used 3+ times

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43 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a magnet?

a substance that exhibits a property called magnetism

the force of attraction or repulsion of substances, especially those that contain iron, due to the arrangement of their electrons

a region in which the magnetic fields of individual atoms are lined up

a device that uses an electromagnet to convert electrical energy into mechanical energy

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a magnetic domain?

a region in which the magnetic fields of individual atoms are lined up

the region around a magnet in which magnetic forces can act

the force of attraction or repulsion of substances, especially those that contain iron, due to the arrangement of their electrons

the part of the atmosphere affected by Earth’s magnetic field

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a magnetic field?

the region around a magnet in which magnetic forces can act

a region in which the magnetic fields of individual atoms are lined up

a substance that exhibits a property called magnetism

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a magnetic pole?

the ends of a magnet

a region in which the magnetic fields of individual atoms are lined up

the region around a magnet in which magnetic forces can act

a bar of iron wrapped with a coil of wire carrying an electric current

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is magnetism?

the force of attraction or repulsion of substances, especially those that contain iron, due to the arrangement of their electrons

the study of technology devoted to developing and improving devices that use a flow of electrons

the process by which electric current is produced by a changing magnetic field

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a magnetosphere?

the part of the atmosphere affected by Earth’s magnetic field

the relationship between electricity and magnetism

a region in which the magnetic fields of individual atoms are lined up

the region around a magnet in which magnetic forces can act

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an electromagnet?

a bar of iron wrapped with a coil of wire carrying an electric current

the relationship between electricity and magnetism

the process by which electric current is produced by a changing magnetic field

the ends of a magnet

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Openscied 8.3 Lesson 6 Magnet

What is a magnet?

What is a magnetic domain?

What is a magnetic field?

What is a magnetic pole?

What is magnetism?

What is a magnetosphere?

What is an electromagnet?

What is electromagnetism?

What is electromagnetic induction?

What is a generator?

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