Inv5.Exp3 Total C

What is magnetic flux?

• The total amount of electrical current in a circuit
• The measure of magnetic field passing through a given area
• The force between two magnetic poles
• The speed at which magnetic fields change

Tags

NGSS.HS-PS2-5

According to Lenz's law, what does the negative sign in Faraday's law indicate?

• The induced current flows in the same direction as the change in flux
• The induced current and magnetic field oppose the change in flux
• The induced current is directly proportional to the change in flux
• The induced current has no relationship to the change in flux

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.MS-PS3-1

NGSS.MS-PS3-5

What characterizes an area vector?

• Its direction only
• Its magnitude equals area and direction is normal to plane
• Its magnitude only
• Its relationship to magnetic fields

What is the primary characteristic of a magnet?

• It must be metallic
• It must conduct electricity
• It can produce its own magnetic field
• It must be permanently charged

What are volts a measure of?

• Current flow
• Magnetic field strength
• Electric potential difference
• Resistance

What is electric current?

• Movement of magnetic fields
• Flow of uncharged particles
• Transfer of heat energy
• Flow of charged particles through a conductor

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the primary purpose of using analogies in physics?

• To make calculations easier
• To visualize concepts beyond sensory perception
• To replace mathematical formulas
• To simplify complex equations

What occurs during electromagnetic induction?

• Chemical reaction in a battery
• Production of EMF across a conductor in changing magnetic field
• Creation of permanent magnets
• Flow of direct current

What is the most basic definition of energy?

• The ability to do work
• The flow of electrons
• The presence of heat
• The force of gravity

Tags

NGSS.MS-PS3-5