Magnetic devices: Motors, generators and transformers

What is the function of the motor?

• Convert electrical energy to mechanical (kinetic) energy

• Convert electrical energy to thermal energy (heat)

• Convert mechanical (kinetic) energy to electrical energy

Tags

NGSS.HS-PS3-3

NGSS.HS-PS3-5

What is the function of the generator?

• Convert electrical energy to mechanical (kinetic) energy

• Convert electrical energy to thermal energy (heat)

• Convert mechanical (kinetic) energy to electrical energy

Tags

NGSS.HS-PS3-3

What is the function of the transformer?

• Convert electrical energy to mechanical (kinetic) energy

• Convert electrical energy to thermal energy (heat)

• Convert mechanical (kinetic) energy to electrical energy

• Step up or step down the voltage

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following energy sources do NOT rely on a turbine which allows a generator to create electricity?

• nuclear

• coal

• windmill

• solar panels

Tags

NGSS.HS-PS3-3

Which type of electric current is required for a transformer to function?

• AC Alternating current

• DC Direct current

Tags

NGSS.HS-PS2-5

What type of transformer is a location B?

• step up

• step down

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

What type of transformer is a location D?

• step up

• step down

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

NGSS.HS-PS3-5

What type of transformer is A?

• Step up

• Step down

Tags

NGSS.HS-PS2-5

What type of transformer is D?

• Step up

• Step down

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Why do we need transformers on the electrical grid? (Two of these options are correct)

• To step up the voltage and lower the current which reduces heat loss over long distances

• To step down the voltage and increase the current which reduces heat loss over long distances

• To step down the voltage and increase the current which makes the electrical power safer for use in the community

• To step up the voltage and decrease the current which makes the electrical power safer for use in the community