Download Physical Science Chapter 15 Exam

Physical Science Chapter 15 Exam
1. Which of the following is not a method of magnetization?
a. By contact
b. By electricity
c. By induction
d. By heat
2. A material that is weakly attracted to magnets and that has only one unpaired electron per
atom is said to be ___.
a. Diamagnetic
b. Ferromagnetic
c. Ultramagnetic
d. Paramagnetic
3. Material that is strongly attracted to magnets and that has several unpaired electrons per
atom is said to be ___
a. Diamagnetic
b. Ferromagnetic
c. Ultramagnetic
d. Paramagnetic
4. The unit of electric charge is the ___.
a. Coulomb
b. Ampere
c. Volt
d. Watt
5. The large, doughnut-shaped belts of charged particles around the earth are called the ___.
a. Van de Graaf belts
b. Van Musschenbroek belts
c. Van Allen belts
d. Van Gogh belts
6. The law stating that like charges attract and unlike charges repel is called the law of ____.
a. Electric charge
b. Electric force
c. Electrostatic induction
d. Static cling
7. A group of aligned atoms having a single magnetic field is called a _____.
a. Magnet
b. Province
c. Domain
d. Pole
8. The region around a charged object in which other charged objects are affected by the
electric force is called the ___.
a. Strike zone
b. Zone of electrostatic effect
c. Electric region
d. Electric field
9. The extent to which a material can absorb or channel lines of magnetic force is called
____.
a. Feasibility
b. Permeability
c. Penetrability
d. Conductivity
10. The extent of the earth’s magnetic field in space is called ____.
a. Magnetosphere
b. Ionosphere
c. Domainosphere
d. Exosphere
11. The continuous stream of high speed particles emanating from the sun is called the ____.
a. Solar jet stream
b. Solar wind
c. Van Allen Belt
d. Aurora
Matching: Match the description to the correct term.
12. unlike poles attract, like poles repel
13. Device for protecting buildings and other structures
from lightning strikes.
14. Device that produces a strong magnetic field when
electricity passes through it
15. Object capable of attracting objects made of steel or
iron
16. simple device that uses the laws of electrostatics to
detect small electric charges
17. Device used to produce static electricity
18. the force between two magnetic poles is directly
related to the product of the pole strengths and
inversely related to the square of the distance between
the poles
19. the magnetic field of a magnet is the sum of thousands
of smaller fields
a. electroscope
b. Law of magnetic poles
c. lightning rod
d. magnet
e. domain theory
f. electromagnet
g. VanDeGraafGenerator
h. Law of Magnetic Force
Short Answer
________________ 24. Device used to produce a magnetic field from an electric current.
________________ 21. Device used by Benjamin Franklin used to guard against lightning strikes.
________________ 22. Regions of concentrated magnetism commonly found at the ends of a
magnet.
________________ 20. A simple device used to detect small electric charges.
________________ 23. Navigational device consisting of a magnet free to swing horizontally.
Answer the following:
25. How does electricity produce a magnetic field around an iron core?
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26. How can you increase the strength of an electromagnet?
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Draw the lines of magnetic force for each situation.
27.
28.
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