Generators, Motors, and Transformers

Choose all of the generators

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Tags

NGSS.HS-ETS1-2

NGSS.HS-PS3-3

Choose all of the motors.

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Tags

NGSS.HS-ETS1-3

NGSS.HS-PS3-3

Choose all of the transformers.

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Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

How does a motor work?

• Current generates an electric field around the loop of wire. The electric force causes the loop of wire to rotate.

• Current generates a magnetic field in the loop of wire that is then attracted and repelled by the magnet(s) in the motor.

• The magnets in the motor attract and repel the metal in the copper wire that makes up the loop. This causes the loop to rotate.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Generators are devices that convert _____ energy into _____ energy.

• chemical; mechanical
• mechanical; electrical
• electrical; mechanical
• potential; kinetic

Tags

NGSS.HS-PS3-3

Motors are devices that convert _____ energy into _____ energy.

• chemical; mechanical

• mechanical; electrical

• electrical; mechanical

• potential; kinetic

Tags

NGSS.HS-PS3-3

NGSS.HS-PS3-5

A transformer actually transforms

• voltage

• magnetic field lines

• generators into motors

What type of current is produced in a battery

• induced

• magnetic

• alternating

• direct

What do step-up transformers do to a circuits voltage?

• Increase it

• Decrease it

• No affect on voltage

• Drop it to 0

What is the principle behind the operation of an electric generator?

• Electromagnetic induction

• Photoelectric effect

• Thermionic emission

• Piezoelectric effect

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5