Physics P 4.1.1 - P 4.1.2

Question 1

What is a magnet?

Answer 1

A magnet is an object that produces a magnetic field.

Question 2

True or False: All materials can be magnetized.

Answer 2

False

Question 3

What are the two poles of a magnet called?

Answer 3

North pole and South pole.

Question 4

Fill in the blank: The area around a magnet where magnetic forces can be detected is called a __________.

Answer 4

magnetic field

Question 5

What is the unit of magnetic field strength?

Answer 5

Tesla

Question 6

Which direction do magnetic field lines point?

Answer 6

From the north pole to the south pole.

Question 7

What is the relationship between electric current and magnetic fields?

Answer 7

An electric current produces a magnetic field.

Question 8

True or False: Only permanent magnets can create magnetic fields.

Answer 8

False

Question 9

What is an electromagnet?

Answer 9

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Question 10

What is the right-hand rule used for?

Answer 10

To determine the direction of the magnetic field around a current-carrying conductor.

Question 11

Fill in the blank: The force experienced by a charged particle moving through a magnetic field is called the __________ force.

Answer 11

Lorentz

Question 12

What is magnetic flux?

Answer 12

Magnetic flux is the total magnetic field passing through an area.

Question 13

True or False: Magnetic fields can do work on stationary charges.

Answer 13

False

Question 14

What is the unit of electric current?

Answer 14

Ampere

Question 15

True or False: Current can flow in a closed loop without a power source.

Answer 15

False

Question 16

What happens to the magnetic field strength when the current in a wire increases?

Answer 16

It increases.

Question 17

What is the term for materials that are easily magnetized?

Answer 17

Ferromagnetic materials.

Question 18

Fill in the blank: The __________ is the region around a magnet where magnetic forces can be felt.

Answer 18

magnetic field

Question 19

What is a magnetic field’s direction determined by?

Answer 19

The orientation of the north pole of a magnet.

Question 20

What is the phenomenon of magnetic induction?

Answer 20

The process by which a material becomes magnetized when placed in a magnetic field.

Question 21

True or False: The Earth itself acts like a giant magnet.

Answer 21

True

Question 22

What is the term for the magnetic field around a solenoid?

Answer 22

Uniform magnetic field.

Question 23

Fill in the blank: A __________ is a coil of wire that produces a magnetic field when an electric current passes through it.

Answer 23

solenoid

Question 24

True or False: Magnetic fields can penetrate through most materials.

Answer 24

True

Question 25

What is a magnetic dipole?

Answer 25

A magnetic entity with a north and a south pole.

Question 26

What happens to a compass needle in a magnetic field?

Answer 26

It aligns itself with the magnetic field lines.

Question 27

Fill in the blank: The magnetic field inside a solenoid is __________ compared to the outside.

Answer 27

stronger

Question 28

True or False: An electric field can exist without a magnetic field.

Answer 28

True

Question 29

What is the term for the area around a charged particle where an electric field exists?

Answer 29

Electric field.

Question 30

What is the effect of a magnetic field on a current-carrying conductor?

Answer 30

It experiences a force.

Question 31

Fill in the blank: The __________ is a device that converts electrical energy into mechanical energy using magnetic fields.

Answer 31

electric motor

Question 32

Fill in the blank: The area around a magnet where magnetic forces can be detected is called a __________.

Answer 32

magnetic field

Question 33

What are magnetic field lines in 10 words or less?

Answer 33

Invisible lines showing direction and strength of magnetic force.

Question 34

What is a permanent magnet in 10 words or less?

Answer 34

Object that produces its own consistent magnetic field without electricity.

Question 35

What is an induced magnet in 10 words or less

Answer 35

Object that becomes magnetic when near a permanent magnet.

Question 36

What is a domain in physics in 10 words or less?

Answer 36

Region where magnetic moments of atoms align in same direction.

Question 37

The bigger a current the stronger a …

Answer 37

Field

Question 38

Nearer the wire the stronger a…

Answer 38

Field