Quiz Time! Directions: Choose the correct answer.

1. When the south poles of two bar magnets are brought close together, there will be:

• a. a force of attraction

• b. an upward force

• c. a force of repulsion

• d. no forces

2. All these metals are nonmagnetic material except:

• a. steel

• b. copper

• c. aluminium

• d. cobalt

3. Like poles or charges______; unlike poles or charges _________.

• a. north; south

• b. repel; attract

• c. attract; repel

• d. monopole; dipole

4. Magnetic declination is the angular difference between ______ and _______ .

• a. true north; magnetic north

• b. true north; the north pole

• c. the pole; a location’s latitude

• d. the magnetosphere; magnetic north

5. According to Hans Christian Oersted theory, _____ is considered the smallest known magnet because it revolves around the nucleus and spins it’s axis.

• a. proton

• b. electron

• c. nuetron

• d. proton and electron

6.The temperature at which a magnetic material losses its ferromagnetic properties is called ____.

• a. boiling point

• b. normal temperature

• c. curie temperature

• d. melting point

7. The susceptibility become more magnetic when cooled in which materials.

• a. paramagnetic

• b. ferromagnetic

• c. diamagnetic

• d. unmagnetic

8. Earth magnetic have a greater magnetic field when____.

• a. near the pole

• b. near the equator

• c. poles are close together

• d. near the field

9. What is responsible for the Magnetic Field around Earth?

• a. The Earth's aluminium crust.

• b. The Earth's iron core.

• c. The Earth’s copper mantle.

• d. The Sun.

10. Which of the following is NOT a practical use of magnets in our everyday living?

• a. Magnets are used on a refrigerator to hold papers.

• b. Magnets are used in door locks.

• c. Magnets are used inside TVs, sound speakers and radios.

• d. Magnet usage are none of the given choices.