Finding the Way Article and Review Questions

Multiple Choice

Which of the following were NOT navigation methods used by the Polynesian wayfinders?

• Stars

• Clouds

• Water temperature

• Birds & fish

Multiple Choice

Which of the following was not used in early navigation

• Compass

• Sextant

• Star Maps

• Satellites

Multiple Choice

A compass needle’s magnetic north pole points toward which of the following?

• Earth's magnetic south pole

• Earth's magnetic north pole

• Earth's magnetic axis

• Earth's rotational axis

Multiple Choice

What methods did ancient civilizations use to navigate when they didn't have modern technology?

• Smartphones

• Landmarks

• Maps

• Compasses

Multiple Choice

Earth's Geographic North is the ____

The compass points to Earth's

• Same as Magnetic North. Compass point to the Magnetic North

• Same as the Magnetic North. Compass point to the Magnetic South

• Opposite as the Magnetic North. Compass point to the Geographic North

• Opposite as the Magnetic North. Compass point to the Geographic South

Multiple Choice

The top pair of magnets will ____ because they have ____ poles.

• repel; like (same)

• attract; like (same)

• repel; opposite

• attract; opposite

Multiple Choice

What will happen when these magnets are brought close together?

• They will attract each other.

• They will repel each other.

• Both magnets will turn to the left

• Both magnets will turn to the right

Multiple Choice

As the distance between two magnets increases (they get farther apart), the force between them:

• Increases

• Decreases

• Stays the Same

Multiple Choice

A magnet will pick up a nail, but not a penny because the nail

• has rust on it.

• is lighter than the penny.

• has a sharp point.

• contains iron.

Multiple Choice

Magnetism is a type of ____________

• force

• book

• plant

• animal

Multiple Choice

Magnets can pull on things without touching them.

• True

• False

Multiple Choice

What is the invisible area around a magnet called where magnetic forces are felt?

• Magnetic pole

• Magnetic field

• Magnetic zone

• Magnetic core

Multiple Choice

A compass needle acts as a(n) _______.

• axis

• magnet

• domain

• system

Multiple Choice

Because of the magnetic field, magnets do not have to touch to affect each other. _________

• True

• False

Multiple Choice

Are these magnetic field lines attracting or repelling?

• repelling

• attracting

Multiple Choice

Why do these magnets repel?

• like poles attract

• opposite poles attract

• like poles repel

• opposite poles repel

Multiple Choice

Which way will the magnets move after they are released?

• Towards each other
• Away from each other
• Not enough information

Multiple Choice

Which picture has the most potential energy?

• Picture A
• Picture B

Multiple Choice

How is energy being transferred in the scenario shown below?

• Potential --> Kinetic
• Kinetic --> Potential
• Kinetic --> Kinetic
• Neither

Multiple Choice

Can magnetic fields be seen by the human eye?

• yes

• no

Multiple Choice

What happens if you cut a magnet in half?

• it doesn't work anymore

• you have 2 smaller magnets

Multiple Choice

Iron, Nickel and cobalt are all __________________ materials

• soft

• poles
• magnetic
• cold

Multiple Choice

True or False: All metals are attracted to magnet.

• True
• False

Multiple Choice

Earth acts like a giant magnet because its center is made up MOSTLY of

• granite
• limestone
• molten iron

• dirt

Multiple Choice

A group of atoms that has all like poles pointing in the same direction are called

• magnetic forces

• magnetic fields

• magnetic domains

• magnetic poles

Multiple Choice

Which item would the magnetic domains be the most unaligned?

• glass jar

• steel nail

• bar magnet

Multiple Choice

Magnetic forces are weakest

• between the poles

• at the north pole

• at the south pole

• at both poles

Multiple Choice

The place on a magnet where the force it exerts is the strongest is called

• a magnetic pole

• a magnetic field line

• a domain

Multiple Choice

What is the magnetic attraction or repulsion of a magnet called?

• the magnetic domain

• the magnetic field

• the magnetic pole

• the magnetic force

Multiple Choice

Which type of magnet loses magnetism outside of a magnetic field?

• a strong magnet

• a temporary magnet

• a permanent magnet

• an electromagnet

Multiple Choice

Which item would the magnetic domains be the most unaligned?

• glass jar

• steel nail

• bar magnet

Multiple Choice

Which item would have the most aligned domains?

• a pencil eraser

• an iron railing

• an aluminum can

Multiple Choice

Which type of magnet does not lose its magnetic properties easily.

• a permanent magnet

• an electromagnet

• a temporary magnet

• a nail rubbed across the north pole of a magnet

Multiple Choice

The space in which the magnetic effects exists is called

• the magnetic field

• the magnetic equator

• the magnetic material

Multiple Choice

Why does a compass always point north?

• The needle is a magnet, and it aligns with the Earth's magnetic field.

• Earth is a magnet, and it attracts all metal objects towards the north.

• Earth's south pole does not have a magnetic pull.

• All magnets have a north and south pole.

Multiple Choice

A compass needle always points north because ....

• the earth's magnetic field pulls it

• it uses electricity

• it is weak

• it has a force field

Multiple Choice

Why are there spaces between some of the magnets?

• The magnets were not heavy enough to make contact.

• The forces between the magnet were attracting.

• The forces between the magnets were repelling.