Non-Contact Forces Test (Magnetism, Gravity, Static Electricity)

This is an image of a magnet showing the magnetic field.

Where is the magnetic force the strongest?

• Position A

• Position B

• Position C

• Position D

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Joe has an idea to cut a bar magnet in half so that he can have one magnet with a north pole and one magnet with a south pole. What is wrong with this idea?

• It is impossible to cut a magnet in half.

• It is impossible to create an extremely small magnet.

• It is impossible to create a magnet with only one magnetic pole.

• It is impossible to separate two opposite magnetic poles once they are in contact with each other.

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Which of the following best describes a magnetic field?

• measure of the length of a magnet

• the force that pushes two magnets away from each other

• an invisible region that surrounds the north pole of a magnet

• a region around a magnet in which you can measure magnetic forces 

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NGSS.MS-PS2-5

The picture below shows magnet 2 being pushed toward magnet 1.  Which of the following will most likely happen to magnet 1 as magnet 2 is moved closer?

• Magnet 1 will move under magnet 2.

• Magnet 1 will move toward magnet 2.

• Magnet 1 will move on top of magnet 2.

• Magnet 1 will move away from magnet 2.

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Use the image to answer this question. What generalization can you make about the attraction between the magnets on the left?

• They are polarized.

• They are attracted to each other.

• They are electrically charged.

• They are repelling each other.

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Look at the diagram of the bar magnets.  What will happen to the force between the two magnets if they are pulled further apart?

• The force would be weaker.

• The force would be stronger.

• The force would stay unchanged.

• The force would reverse the poles.

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Iron filings and bar magnets were placed on a sheet of paper.  The following diagram shows the pattern made on the paper.  At which location is the magnetic field the strongest?

• 1

• 2

• 3

• 4

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What is the name of the attractive force that acts between any two bodies (objects) in our universe?

• Gravitational force

• Coulomb attractive force

• Magnetic force

• Electrical force

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Two factors affecting the size of the force of gravity between 2 objects are

• Mass and matter

• Distance and weight

• Mass and distance

• Weight and mass

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The farther apart two objects are, the ____ their gravitational forces.

• stronger

• weaker

• more equal