High School Physics

Which dude discovered that current in a wire caused a

deflection in a magnetic compass?

• Tesla

• Faraday

• Maxwell

• Oersted

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which area of the bar magnet has the strongest magnetic field effects?

• closer field lines near poles = stronger

• Field lines are straighter = stronger

• side of magnet is stronger

• field lines furthest apart = stronger

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What kind of magnet can be turned on and off?

• refridgerator magnet

• electromagnet

• magnetite

• iron

What 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.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

How do electromagnets differ from regular magnets? 

• They  can be turned off and on 

• Their polarity can be reversed

• Their strength can be changed

• All of the above

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NGSS.MS-PS2-3

Permanent Magnets and Electromagnets are similar in which TWO ways?

• it can be turned off and on

• they both have a north and south pole

• they are surrounded by a magnetic field

What does magnets repelling mean?

• Magnets move away from each other

• Magnets do not have magnetism

• Magnets move towards each other

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NGSS.MS-PS2-3

Electric current can flow through a wire only if it forms a ____

• Open Loop

• Closed Loop

True or false: Sometimes magnets break into pieces that only show magnetism on one side (which is called a monopole).

• True

• False

What is a light-year and why do scientists use it?

• A light-year is the distance light travels in one year and is used to measure very small distances.

• A light-year is the distance light travels in one year and is used to measure very large distances.

• A light-year is the time it takes light to travel from the Sun to Earth and is used to measure very small distances.

• A light-year is the time it takes light to travel from the Sun to Earth and is used to measure very large distances.