Grade 4 - Q4: Magnetism

An exotic type of neutron star or a collapsed core of a massive supergiant star.

• Magnesia

• Magnetite

• Magnetar

A term come from the ancient Greek city of _____________, at which many natural magnets were found.

• Magnesia

• Magnetite

• Magnetar

An Iodestones (Iode means to lead or to attract) which contains _____________, a natural magnetic material Fe₃O₄.

• Magnesia

• Magnetite

• Magnetar

In Eleventh century magnets are use to ________________.

• aid in navigation

• aid in nature

• aid in alignment

Which object is not attracted to magnets?

• Scissors

• Screws

• Paper clips

• Silver

Which material is attracted to magnets?

• Silver

• Gold

• Nickel

• Aluminum

Is Magnetism refers to the attractive or repulsive forces that are exerted by magnets on magnetic objects?

• True

• False

How many poles do magnets have?

• 1

• 2

• 3

• 4

Observe the photo, what will happen if the S and S put together.

• Attract

• Repel

• Nothing will happen

Observe the photo, what will happen if the N and S put together.

• Attract

• Repel

• Nothing will happen