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- 1. Multiple Choice
This picture best illustrates the construction of a(n)
magnet
electromagnet
series circuit
parallel circuit
- 2. Multiple ChoiceHow do you make an electromagnet stronger?Add a motor and/or lightbulbsAdd more light bulbs and/or wire coilsadd more wire coils and/or a switchadd more wire coils and/or batteries
- 3. Multiple ChoiceWhat is true about electricity and magnetic fields?Electricity is needed to create any magnet.Electricity always creates a magnetic field.Electricity is stronger than a magnetic field.Electricity prevents magnetic fields from occurring.
- 4. Multiple ChoiceThis is a picture of a simple electromagnet. How can the electromagnet be made stronger?Add more coils of wire to the nail.Use a smaller battery.Reverse the poles of the magnet.Remove all the coils and the nail.
- 5. Multiple ChoiceWhat kind of magnet can be turned on and off?refridgerator magnetelectromagnetmagnetiteiron
- 6. Multiple ChoiceA compass needle responds to a magnetic field, because the compass needle is aA. generator.B. motor.C. magnet.D. transformer.
- 7. Multiple Choice
What is magnetic force?
A force exerted by electrically charged particles
A force exerted by magnets that can be felt by objects near a magnet
A force exerted by magnets that makes an object become electrically charged
A force exerted by a magnet only when it physically touches an object
- 8. Multiple Choice
Which of the following is not a good conductor?
Copper
Silver
Aluminium
Plastic
- 9. Multiple Choice
Particles with opposite charges ____________ and particles with same (or like) charges ____________.
attract, repel
repel, repel
attract, attract
repel, attract
- 10. Multiple Choice
The picture above is an example of what?
Magnetic field
Electric field
Repulsion
Attraction
- 11. Multiple Choice
What would happen with the magnets in the picture above?
They would repel
Nothing
They would attract
They would repel and then attract
- 12. Multiple ChoiceThe ability of some materials to attract certain metals is calledElectricityMagnetismElectromagnetismAtoms
- 13. Multiple Choice
If the north pole of a magnet is brought close to the south pole of another magnet, what will happen?
They will atrract each other
They will repel each other
They will demagnitize
The south pole will turn around so the north pole is facing the other magnet.
- 14. Multiple Choice
Which sides of the magnet repel each other?
A) North and North Pole
B) South and South Pole
C) The North and South Pole
D) A and B
E) A, B,C
- 15. Multiple Choice
Which answer describes a magnet best.
A material that has two north poles
A material that has a two south poles
A material that has a north and a south pole
An electron
- 16. Multiple Choice
Which sides of the magnet attract each other?
A) North and North Pole
B) South and South Pole
C) The North and South Pole
D) A and B
E) A, B,C
- Answer choicesTagsAnswer choicesTags