Question 1 (1 point)
in a magnet, what type of poles are attracted to each other?

question 1 options:

north poles

unlike or different poles

south poles

like poles

question 2 (1 point)
saved
magnets are surrounded by

question 2 options:

positively charged matter

gravitational fields

magnetic fields

electric fields

question 3 (1 point)
bar magnets have poles.

question 3 options:

4

3

1

2

question 4 (1 point)
saved
what elements have magnetic properties and will be attracted to magnets?

question 4 options:

sodium, cobalt and iron

iron, cobalt, and nickel

nickel, mercury and sodium

cobalt, sodium and mercury

question 5 (1 point)
saved
the movement or spinning of this subatomic particle is what creates magnetism.

question 5 options:

protons

neutrons

electrons

quarks

question 6 (1 point)
true or false: magnets are weakest at their poles.

question 6 options:
true
false
question 7 (1 point)
are devices that create a magnetic field through the application of electricity.

question 7 options:

magnets

electromagnets

motors

generators

question 8 (1 point)
true or false: electromagnets are beneficial because they can be turned on and off.

question 8 options:
true
false
question 9 (1 point)
saved
the earth has a protective magnetic field around it, that is created by

question 9 options:

molten iron in the earth's core.

the movement of tectonic plates.

molten iron in volcanoes.

the upward motion of mountain chains forming.

question 10 (1 point)
true or false: doorbells, scrap yards, and rock concerts are all examples of every day uses of electromagnets.

question 10 options:
true
false
question 11 (1 point)
true or false: electromagnets cannot lift heavy objects.

question 11 options:
true
false

Question 1 - unlike or different poles

Question 2 - magnetic fields

Question 3 - 2

Question 4 - Iron, cobalt, and nickel

Question 5 - electrons

Question 6 - False

Question 7 - Electromagnets

Question 8 - True

Question 9 - molten iron in the Earth's core

Question 10 - True

Question 11 - False

I hope this helps

Question 1 (1 point)  

unlike or different poles

Explanation:

similar poles always repel each other while unlike poles always attracts each other

Question 2 (1 point)  

Magnetic fields

Explanation:

Magnetic field is due to magnetic poles i.e. magnetic field lines originates from North pole and terminates at south pole

Question 3 (1 point)  

2

Explanation:

All bar magnets must have two poles (1) North Pole (2) South Pole

Question 4 (1 point)  

iron, cobalt and Nickel

Explanation:

all materials which have small magnetic domains which will increase the magnetic field when placed in external field is magnetic materials

Question 5 (1 point)  

electrons

Explanation:

Due to spinning of electrons electric current will induce and this will induce a magnetic field and creates magnetism

Question 6 (1 point)  

FALSE

Explanation:

Magnetic pole strength is maximum at their poles position

Question 7 (1 point)  

Electromagnets

Explanation:

Electromagnets are devices that create a magnetic field through the application of electricity.

Question 8 (1 point)  

TRUE

Explanation:

By switch off the current we can turn off the magnetism of electromagnets

Question 9 (1 point)  

Molten iron in the Earth core

Explanation:

The earth has a protective magnetic field around it, that is created by molten iron in Earth core as it will induce electric current due to rotation of earth.

Question 10 (1 point)  

True

Explanation:

Doorbells, scrap yards, and rock concerts are all examples of every day uses of electromagnets as in all of the above devices we can control magnetism by controlling current.

Question 11 (1 point)  

FALSE

Explanation:

By the application of large number of turns and large magnitude of current Electromagnets can lift heavy objects.

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