🧲 MAGNETS
PAGE 1 OF 5 — INVISIBLE PULL
NON-CONTACT FORCE
PUSH AND PULL AT A DISTANCE
Magnets can attract or repel without touching. That is a non-contact force, like gravity, but it mainly affects certain materials such as iron, nickel, and cobalt. Every magnet has two poles, often called north and south. You cannot isolate a single pole by snapping a bar magnet. Each piece still has both.
🧲 POLES
Magnets have north and south poles. Opposite poles attract; like poles repel.
PULL!
ATTRACT
➕ Opposite poles pull together
➖ Like poles push apart
➖ Like poles push apart
METAL
🔩 Iron sticks best in daily life
🪙 Not every metal is magnetic
🪙 Not every metal is magnetic
PAGE 2 OF 5 — MAGNETIC FIELDS
INVISIBLE MAPS
WHERE THE FORCE REACHES
Around a magnet is a magnetic field, a region where magnetic forces can act. Iron filings sprinkled near a magnet line up along field patterns. The field is strongest near the poles and gets weaker farther away. Field lines are a drawing tool scientists use. You cannot see them floating in air, but the pattern helps predict pushes and pulls.
🌀 FIELD
A magnetic field is the space around a magnet where magnetic forces can be felt.
MAP!
FILINGS
📌 Iron filings show patterns
📍 Strongest near the poles
📍 Strongest near the poles
FADE
📉 Force weakens with distance
🧪 Closer means stronger tug
🧪 Closer means stronger tug
DRAW
✏️ Field lines are a model
👁️ The force itself is invisible
👁️ The force itself is invisible
PAGE 3 OF 5 — EARTH THE GIANT MAGNET
NEEDLE
🧲 Tiny magnet in the compass
🌍 Aligns with Earth's field
🌍 Aligns with Earth's field
DRIFT
📍 Magnetic north slowly moves
🗺️ Not exactly the geographic pole
🗺️ Not exactly the geographic pole
COMPASS MAGIC
WHY NEEDLES POINT
Earth itself acts like a giant magnet. A compass needle is a tiny magnet that lines up with Earth's magnetic field. It points roughly toward geographic north, though magnetic north is not exactly at the North Pole and slowly drifts. Explorers used compasses long before GPS. Your phone may sense magnetic fields too.
🧭 EARTH
Earth's magnetic field lets compass needles point roughly north for navigation.
NORTH!
PAGE 4 OF 5 — FRIDGES TO MRI
USEFUL MAGNETS
FROM KITCHEN TO HOSPITAL
Fridge magnets hold notes because magnetic force beats a little gravity on light paper. Speakers, motors, and generators use magnets and electricity together. Hospitals use very strong magnets in MRI machines to help make detailed body images. Those scanners are carefully controlled tools, not toys. Everyday magnets are still amazing enough.
🏥 MRI
MRI scanners use strong magnets as part of medical imaging, under expert control.
STICK!
FRIDGE
❄️ Light notes stay put
📄 Magnet force beats paper weight
📄 Magnet force beats paper weight
MOTOR
🔊 Speakers need magnets
⚙️ Motors spin with magnetic push
⚙️ Motors spin with magnetic push
CARE
💳 Keep magnets off some cards
🧸 Supervise strong magnet toys
🧸 Supervise strong magnet toys
PAGE 5 OF 5 — MAGNET FACTS
WRAP UP
POLES, FIELDS, AND EARTH
Magnets have north and south poles that attract opposites and repel likes. Fields are invisible regions of force. Earth is a giant magnet that guides compasses. From fridge doors to hospital MRI rooms, magnetism shapes modern life. Not every metal sticks, but the ones that do tell a powerful story.
MAGNET!
TRY
🧭 Watch a compass near a magnet
❄️ Test what sticks on the fridge
❄️ Test what sticks on the fridge
REMEMBER
⚗️ KEY FACTS
Opposite poles attract, like poles repel. Magnetic fields are invisible. Earth guides compasses. Fridge magnets and MRI machines both use magnetism at very different strengths.
🧲 North and south poles come as a pair
🌀 Fields weaken farther away
🧭 Earth is a giant magnet
🌀 Fields weaken farther away
🧭 Earth is a giant magnet
🧠 QUIZ TIME!
MAGNETS · 5 QUESTIONS
QUESTION 01
What happens between opposite magnetic poles?
QUESTION 02
What is a magnetic field?
QUESTION 03
Why does a compass needle point roughly north?
QUESTION 04
Which everyday metals are commonly magnetic?
QUESTION 05
What do MRI machines use as part of imaging?
0/5
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