Electricity and Magnetism Unit Test
Directions: Select the BEST response for the following questions.
First: *
Your answer
*
Your answer
Homeroom Teacher *
Wanda's dad wired new lights for her playroom. When he thought everything was connected correctly, he turned on the switch and nothing happened. What could be the problem?
1 point
Marta has a radio in her room. It requires electricity in order to play. Which of the following is necessary in order for electricity to move from the source to the radio? *
1 point
When electricity moves through a metal wire, the wire is: *
1 point
Which material conducts electricity? *
1 point
To have an electric current when using batteries, there MUST be a: *
1 point
You should NEVER turn on a radio if you are: *
1 point
PLASTIC-RUBBER-GLASS-PAPER Which name applies to these materials because of their electrical properties? *
1 point
Which of these is a conductor? *
1 point
Static electricity can be built up by: *
1 point
Marie feels a shock from touching the TV screen just after it is turned off. This is due to the build up of: *
1 point
If you took a woolen cloth and rubbed it briskly over your hair, your hair would stand on ends. What has been created? *
1 point
Why does plugging in and turning on a hair dryer make it operate? *
1 point
Which components could complete an electric circuit? *
1 point
Two students design a circuit that includes a switch, a battery, and light bulb all directly connected by wires. Before flipping the switch, what could the students do to BEST ensure it will work? *
1 point
Gary walks in the house and turns on the light. What could he do that would make this circuit open? *
1 point
A closed circuit is a(n): *
1 point
Larry connects a wire from a battery to each of the listed items. Which item would allow a current from the battery to pass through if connected to another wire on an opposite end? *
1 point
Which would be a good conductor of electricity? *
1 point
What material would be safest to use as an insulator to cover electrical wires? *
1 point
Objects with like charges repel and unlike charges attract. The girl's hair and the comb have - *
1 point
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Many electrical wires are wrapped in plastic coating because plastic is: *
1 point
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Which MUST be included in an electromagnet? *
1 point
Like or similar poles on two magnets will: *
1 point
Carlos makes an electromagnet by coiling a piece of wire around an iron nail and attaching it to a battery. The electromagnet is able to pick up two paper clips. What can Carlos do to make his electromagnet stronger? *
1 point
How is a bar magnet different from an electromagnet? *
1 point
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