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Magnetism
Gr. 6 - Magnetism
Question | Answer |
---|---|
What is any material that attracts iron and materials that contain iron? | Magnet |
What is the attraction or repulsion of magnetic material? | Magnetic Force |
What direction will part of a magnet always point? | North |
Will unlike poles attract or repel each other? | Attract |
Will like poles attract of repel each other? | Repel |
What is the area of magnetic field around a magnet called? | Magnetic Fields |
Where is the magnetic field strongest? | The Poles |
What are invisible lines that loop from pole to pole without crossing? | Magnetic Field Lines |
When magnetic fields of two or magnets overlap do they create weaker or stronger magnetic fields? | Stronger |
What is the smallest particle of an element? | Atom |
What is the center region of an atom called? | Nucleus |
What particle carries a positive charge? | Proton |
What particle carries a negative charge? | Electron |
What particle carries no charge? | Neutron |
What type of electron produces a magnetic field that makes the electron behave like a tiny magnet? | Spinning |
What is a grouping of atoms that have their magnetic fields aligned? | Magnetic Domain |
Are the domains in a magnetized material pointing in the same or random directions? | Same |
Are the domains in a non magnetized material pointing in the same or random directions? | Random |
What do you call a material that shows strong magnetic characteristics? | Ferromagnetic |
What are examples of natural ferromagnetic materials? | Iron, nickel, cobalt, and gadolinium |
What is a magnet that easily loses its magnetism? | Temporary |
What is a magnet that keeps its magnetism for a long time? | Permanent |
What can destroy a magnet? | Heat or Strike |
What device has a magnetized need that spins freely and usually point north? | Compass |
What is the angle between geographic north and the north to which a compass needle points? | Magnetic declination |
Magnetic declination changes depending on your ____________. | Location |
Since Earth produces a strong magnetic field, Earth itself can make magnets out of ____________________ materials. | Ferromagnetic |
The Earth's magnetic stripes on the ocean floor change ___________, showing that the magnetic field has changed. | Direction |
What are the doughnut-shaped regions that contain fast moving protons and electrons above Earth's surface? | Van Allen belt |
What is a stream of electrically charged particles flowing at high speed from the sun? | Solar Winds |
What is the region of Earth's magnetic field shaped by the solar wind? | Magnetosphere |
What is the glowing region in the atmosphere caused by charged particles from the sun? | Aurora |
What is the aurora borealis called? | Northern Lights |
What is the aurora australis called? | Southern Lights |