Inv5.Exp1 Test

What happens when two like magnetic poles are brought together?

• They attract each other
• They repel each other
• They become neutral
• They lose their magnetic properties

What is a magnetic field primarily described as?

• A scalar quantity that measures magnetic strength
• A vector field describing magnetic influence in space
• A constant force that only affects metals
• A field that only exists within magnetic materials

How does Earth's magnetic field relate to its geographic poles?

• They are exactly aligned at all times
• They have no relationship to each other
• The alignment changes over time
• They are always perpendicular to each other

What is magnetic declination?

• The vertical angle between true north and magnetic north
• The horizontal angle between true north and magnetic north
• The distance between magnetic poles
• The strength of Earth's magnetic field

When modeling magnetic fields from multiple magnets, what principle is used?

• Principle of conservation
• Principle of superposition
• Principle of magnetization
• Principle of polarity

How does a compass behave in the presence of multiple magnets?

• It points only to the strongest magnet
• It points in random directions
• It points in a direction between the influence of both magnets
• It spins continuously

What generates magnetic fields?

• Stationary charges only
• Moving charges
• Neutral particles
• Mass alone

What shape does the magnetic field around a straight current-carrying wire form?

• Straight lines
• Circles around the wire
• Triangular patterns
• Square patterns

The Lorentz force equation represents:

• Only magnetic force
• Only electric force
• Both electric and magnetic forces
• Neither electric nor magnetic force

For a charged particle to experience magnetic force, what must be true?

• It must be positively charged
• It must be moving
• It must be stationary
• It must be negatively charged