Grade 12

Who is Optimus Prime?

• leader of the decipticons
• leader of the autobots
• part of the brave police
• a man-made robot

Tags

CCSS.RI.11-12.8

CCSS.RI.8.7

CCSS.RI.9-10.7

CCSS.RL.11-12.8

CCSS.RL.9-10.7

Step up transformers...

• have more turns on their primary coil
• have more turns on their secondary coil
• have equal numbers of turns on their primary and secondary coil

In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.

• Wind
• Water
• Magnets
• Circuits

This picture is an example of a ___________

• Step- Up Transformer
• Step- Down Transformer
• Motor
• Generator

Based on this picture, which side will have a higher voltage?

• Secondary
• Primary
• Both sides have the same voltage
• Cannot be determined

True or False: A magnetic field is invisible.

• True
• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Simple loop generators gives 

• AC current 
• DC current

The process of generating the current in a conductor is called as 

• Electro motive force 
• Electromagnetic induction 
• generator energy conversion 
• induced voltage

___ Law says that the Induced current is proportional to the change of magnetic flux 

• Lenz'
• Faraday's
• Ampere's

Tags

NGSS.HS-PS2-5

Can you produce current in a wire with a magnet that is sitting still?

• Yes; having a magnet near a wire is enough to excite the electrons

• No; the magnetic field has to be changing to excite the electrons

• No; magnets cannot create electricity

Tags

NGSS.HS-PS2-5