Magnets and Magnetism

Introduction to Magnets

• Magnets are objects that create an invisible area of magnetic force around them, known as the Magnetic Field.
• Magnetic Fields can attract magnetic objects without physical contact.

Magnetic vs Non-Magnetic Objects

• Magnetic Objects: Get attracted to magnets (e.g., objects containing Iron, Nickel, Cobalt).
• Non-Magnetic Objects: Do not get attracted to magnets (e.g., wood, cloth).

Properties of Magnets

• When suspended freely, magnets align in the North-South direction.
  • North Pole: End pointing towards the North.
  • South Pole: End pointing towards the South.

Experiment with Magnets

• Like Poles: Repel each other (e.g., North-North or South-South).
• Unlike Poles: Attract each other (e.g., North-South).

Cutting Magnets

• Cutting a magnet results in two new magnets, each with its own North and South Poles.

Earth's Magnetism

• Earth behaves like a magnet due to its iron and nickel core, which creates a magnetic field.

Fun Fact

• Strong magnets can attract objects even under water.

• End of lecture, tune in next time for more fun facts about magnets!