Inv5.Exp1 Total C

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

When a magnet is cut into two pieces, what is the result?

• One piece becomes north, the other south
• Both pieces become non-magnetic
• Each piece becomes a complete magnet with both poles
• The pieces lose their magnetic properties

Why can't magnetic poles exist in isolation?

• They are too weak individually
• They require external energy
• Even an electron has both poles
• They need geographic alignment

What is the primary source of magnetic force in materials?

• Nuclear motion
• Moving electric charges
• Geographic orientation
• DAtomic weight

What determines the magnitude of magnetic force?

• Temperature of the material
• Size of the magnet
• Charge strength and speed of motion
• Geographic location

How does an electron contribute to magnetism?

• Through nuclear decay
• Through dual motion (orbit and spin)
• Through heat generation
• Through mass alone

What is a magnetic moment?

• The time taken for magnetization
• The weight of a magnet
• A vector representing strength and orientation
• The distance between poles

What are AlNiCo magnets?

• Temporary magnets
• Iron alloys with aluminum, nickel, and cobalt
• Pure iron magnets
• Rare earth magnets

What characterizes ferromagnetic materials?

• They are always magnetic
• They never exhibit magnetic properties
• They show magnetic effects only near magnets
• They repel all magnets

What are magnetic domains?

• Geographic regions of magnetism
• Individual magnetic poles
• Groups of aligned magnetic moments
• Spaces between magnets