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Magnets And Electricity
Test Description: UT SEED standards 7.1.4 review
Instructions: Answer all questions to get your test result.
1) A compass is a small magnet that always points north. What does this tell us?
A
Most compasses need to be set
B
Solar rays affect magnetism
C
Earth is surrounded by a magnetic field
D
There's too much static in the air
2) What characteristics do magnetic substances have?
A
They are always black and cold to touch
B
They can push or pull objects they are not touching
C
They fall faster than other objects when you drop them
D
They can give an electrical shock
3) What can you make out of a power source (like a battery) and wire coiled around an iron rod?
A
a permanent magnet
B
an electromagnet
C
a generator
D
an electric motor
4) Which of the following ways would be the best way to observe and compare the magnetic fields of various magnets?
A
Conduct an experiment using different types of magnets and iron fillings
B
Ask a high school science teacher about the history of natural magnets
C
Search for an internet website to find experiments on electricity
D
Use a reference book and read a section about electromagnetism
5) What happens when two north poles of magnets are placed together?
A
They repel
B
They cancel each other out
C
The strength of the magnet is doubled
D
They attract
6) What are two ways you can make an electromagnet stronger?
A
more coils, a longer nail
B
a longer nail, longer wire
C
more power, longer wire
D
more coils, more power
7) Which statement best describes the types of materials that electricity can flow through?
A
Objects that can bend, like wire, only conduct electricity
B
Objects that have metal in them can usually conduct electricity
C
Only objects that can be magnetized can conduct electricity
D
Objects must have a lot of mass to be able to conduct electricity
8) When performing an experiment with electricity, which material would act as an insulator?
A
staple
B
Popsicle stick
C
paper clip
D
wire
9) Two objects have collected static electricity with the same charge. What would the objects do when placed near each other?
A
nothing
B
repel
C
stick together
D
attract
10) Which type of electricity moves along a pathway to turn on a light?
A
current electricity
B
static electricity
C
lightening energy
D
turbine electricity
11) What is an example of static electricity in nature?
A
lighteining
B
volcanoes
C
rain
D
ocean currents
12) Electric current is the movement of ___________________ along a path.
A
magnets
B
atoms
C
protons
D
electrons
13) Moving a magnet near a wire causes what to happen?
A
Nothing
B
An electromagnet is made
C
The fire alarm goes off
D
An electric current is created
14) What makes electric forces stronger?
A
more charge, less distance between objects
B
more charge, more distance between objects
C
put the charge on a magnet
D
less charge, more distance between objects
*select an answer for all questions
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