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