WorksheetsUnit 2B Electricity and Magnetism Review Game
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
Bits of paper are attracted to the surface of this balloon. What attracts the paper pieces to the balloon?
a)
a. friction
b)
b. static electricity
c)
c. potential energy
d)
d. magnetism
2.
If you put a negative and a positive charge together they will
a)
a. do nothing
b)
b. attract
c)
c. repel
3.
A boy pulls a sweater off over his head. His hair is attracted to the sweater due to
a)
a. magnetic force
b)
b. a heat transfer
c)
c. a chemical change
d)
d. an electrical charge
4.
What material would be safest to use as an insulator to cover electrical wires?
a)
a. aluminum
b)
b. tin
c)
c. rubber
d)
d. water
5.
Many electrical wires are wrapped with a plastic coating because plastic is
a)
a. less expensive than steel
b)
b. more dense than copper
c)
c. able to keep its shape
d)
d. a good insulator
6.
Which of these substances conducts electricity the best?
a)
a. wood
b)
b. brick
c)
c. copper
d)
d. plastic
7.
Why does static electricity move from you to a metal object after you have walked over new carpet?
a)
a. It is attracted to the metal.
b)
b. It is attracted to you.
c)
c. It is attracted to the carpet
d)
d. It is made in your shoes.
8.
Which form of electric discharge appears in nature?
a)
a. rain
b)
b. ocean currents
c)
c. lightning
d)
d. volcanoes
9.
The electrician in this picture is wearing rubber gloves for protection. The purpose of the rubber gloves is to
a)
a. keep the electrician dry
b)
b. create an electrical circuit
c)
c. produce electricity
d)
d. insulate the electrician
10.
A class constructed this project. Which of these objects most likely made the light glow when connected to points X and Y?
a)
a. Plastic straw
b)
b. Cotton string
c)
c. Aluminum foil
d)
d. Rubber eraser
11.
Which of the following lists include only conductors of electricity?
a)
a. iron, wood and paper
b)
b. plastic and paper
c)
c. iron, copper and steel
d)
d. wood, plastic and paper
12.
Two objects have collected static electricity with the same charge. What would the objects do when placed near each other?
a)
a. repel
b)
b. attract
c)
c. nothing
d)
d. stick together
13.
To make an electromagnet, a conductor should be coiled around
a)
a. a glass tube
b)
b. an iron nail
c)
c. a roll of paper
d)
d. a wooden stick
14.
The diagram below shows an incomplete circuit. Which item would allow the bulb to light up of it were used to connect point A to point B?
a)
a. a piece of rubber
b)
b. a plastic spoon
c)
c. a metal paper clip
d)
d. thick paper
15.
A bar magnet is placed on a table, and a sheet of blank paper is placed over the magnet.What could be sprinkled on the paper to show the magnetic field of the bar magnet?
a)
a. salt
b)
b. iron filings
c)
c. sand
d)
d. soil (dirt)
16.
The magnetic fields of any magnet are greatest
a)
a. around the middle
b)
b. around the poles
c)
c. around only the south pole
d)
d. around only the north pole
17.
The Swift Recycling Company recycles cans. Some of the cans are made of aluminum and some are made of iron. Which of the following would be the best way to separate the two types of cans?
a)
a. Use a strong magnet to separate the cans.
b)
b. Heat the cans at high temperature until they melt.
c)
c. Put the cans in water to see which sink and which float.
d)
d. Shine a light on the cans to determine which are aluminum.
18.
Mariah set up an experiment. She recorded her findings in a chart. Which question was Mariah testing?
a)
a. How many paper clips can you pick up with one magnet?
b)
b. How many trials are needed to pick up the most paper clips?
c)
c. Does strength of magnetism increase if more magnets are used?
19.
The north pole of one magnet attracts
a)
a. the north pole of another magnet.
b)
b. the south pole of another magnet.
c)
c. either the north pole or the south pole of another magnet.
20.
Taylor made an electromagnet by winding a coil of insulated wire around a nail. What kind of energy was changed into magnetic energy?
a)
a. heat energy
b)
b. electric energy
c)
c. sound energy
d)
d. light energy
21.
Kayla built four electromagnets. The bolts are the same size in each electromagnet. Which electromagnet has the strongest magnetic field?
a)
a.
b)
b.
c)
c.
d)
d.
22.
Which of the following magnetic fields is correct for a single bar magnet?
a)
a.
b)
b.
c)
c.
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