Inv5.Exp3 Vocab

What is magnetic flux?

• The total magnetic field passing through a given area
• The flow of electrons in a circuit
• The strength of a magnetic field
• The direction of magnetic poles

According to Lenz's law, how does an induced current's magnetic field relate to the initial magnetic field?

• It enhances the initial field
• It opposes changes in the initial field
• It has no effect on the initial field
• It runs perpendicular to the initial field

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What defines a solenoid?

• A permanent magnet with two poles
• A straight wire carrying current
• A helical coil of wire with length greater than diameter
• A flat coil of conducting material

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which best describes wireless induction?

• Transfer of data through radio waves
• Transfer of electrical energy via electromagnetic fields
• Movement of electrons through a vacuum
• Conversion of mechanical energy to electrical energy

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is mechanical energy?

• Energy from chemical reactions
• Energy from nuclear decay
• Energy possessed due to motion or position
• Energy from magnetic fields

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

How is electromotive force (EMF) measured?

• In amperes per charge
• In energy per unit electric charge
• In watts per meter
• In joules per second

What is the primary characteristic of a metal?

• It must be magnetic
• It must be solid at room temperature
• It must conduct electricity at absolute zero
• It must be malleable

What is Faraday's law primarily concerned with?

• Magnetic field strength
• Electric current flow
• Induced voltage from changing magnetic fields
• Resistance in conductors

Tags

NGSS.HS-PS2-5

What defines kinetic energy?

• Energy due to position
• Energy due to motion
• Energy due to temperature
• Energy due to mass

Tags

NGSS.HS-PS3-2

What is the function of a battery?

• To store magnetic energy
• To convert mechanical energy to electrical
• To power electrical devices through electrochemical cells
• To measure electrical current

Tags

NGSS.HS-PS3-3