Summative Test # 4 in Science 5 (Module 6)
Quiz by Van Aldrich Rosal
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- Q1
Which of the following is NOT part of an electromagnet?
toothpick
iron
power source
wire
30s - Q2
How can the electromagnet be made stronger?
Add more coils of wire to the nail.
Reverse the poles of the magnet.
Use a smaller battery
Remove all the coils and the nail.
30s - Q3
What is the name of the force that attracts or repels materials?
magnetism
pull
electricity
current
30s - Q4
In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an __________ core.
iron, bottle, straw
wire, iron, electric
iron, electric, wire
electric, wire, iron
30s - Q5
What kind of magnet can be turned on and off?
magnetite
iron
refrigerator magnet
electromagnet
30s - Q6
What would we call a nail that can pick up a paperclip because it is touching a magnet?
detector
temporary magnet
poles
force
30s - Q7
In order to make an electromagnet, you need a
magnet, nail, and wire
battery, nail, and magnet
battery, wire, and nail
all of the above
30s - Q8
All of the following can be picked up by a magnet EXCEPT:
nickel
iron
aluminum
cobalt
30s - Q9
How are electromagnets different from magnets?
magnets can be turned on/off
magnets are more powerful
magnets have a North and South pole
you can turn an electromagnet on/off
30s - Q10
Electromagnets are permanent magnets that can attract any metal or magnetic materials.
true
false
30s - Q11
The number of dry cells used affects the magnetism of an electromagnet. More dry cells mean less magnetism.
false
true
30s - Q12
An electromagnet can be made stronger by using less coils of wire.
true
false
30s - Q13
When the electricity stops flowing through a coil of wire, the nail continues attracting any metal or magnetic materials.
true
false
30s - Q14
An electromagnet may be produced by making electricity flow through a coil of wire wound an iron nail.
false
true
30s - Q15
Magnets has a property that attracts objects called __________.
magnetism
strength
electromagnets
magnetic field
30s