Question

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

Answer 1

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

Answer 2

Question 1 (1 point)

Answer:

unlike or different poles

Step-by-step explanation:

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

Question 2 (1 point)

Answer:

Magnetic fields

Step-by-step 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)

Answer:

2

Step-by-step explanation:

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

Question 4 (1 point)

Answer:

iron, cobalt and Nickel

Step-by-step 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)

Answer:

electrons

Step-by-step explanation:

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

Question 6 (1 point)

Answer:

FALSE

Step-by-step explanation:

Magnetic pole strength is maximum at their poles position

Question 7 (1 point)

Answer:

Electromagnets

Step-by-step explanation:

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

Question 8 (1 point)

Answer:

TRUE

Step-by-step explanation:

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

Question 9 (1 point)

Answer:

Molten iron in the Earth core

Step-by-step 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)

Answer:

True

Step-by-step 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)

Answer:

FALSE

Step-by-step explanation:

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