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- 1. Multiple ChoiceWhat characteristics do magnetic substances have?They can give you a "shock" when you touch themThey can push or pull objects without touching themThey are always black and cold to touchThey fall faster than other objects when you drop them
- 2. Multiple ChoiceWhat subject is attracted to a magnet?SilverWaterMetalIron
- 3. Multiple ChoiceAncient people discovered magnetic rocks called lodestone. What did they use them for?firescompassessculpturesweapons
- 4. Multiple ChoiceWhat happens when two north poles of a magnet are placed together?they repelthey attractthey cancel each other outthe strength of the magnet is doubled
- 5. Multiple ChoiceWhat must happen for an electromagnet to have a magnetic field?It must be heatedIt must be touching another magnetIt must be lined up with the Earth's magnetic fieldIt must be connected to an electrical source
- 6. Multiple ChoiceHow is Earth's magnetic field similar to that of a magnet?It is hundreds of miles longIt has north and south polesIt is made in Earth's coreIt is shaped like a horseshoe
- 7. Multiple ChoiceWhat is our best evidence that Earth has a magnetic field?All things fall toward Earth's centerA compass needle lines up with itWinds blow from east to westEarth's oceans all have currents
- 8. Multiple Choice
Where is Earth's magnetic field strongest?Along the outside linesAlong the inside lines on either sideWhere the lines are close together at the polesIn the space outside of the lines - 9. Multiple ChoiceEarth's magnetic field and a bar magnet attract particles to the same locations. Where are they?The middleAll around the outsideThe north and south polesFirst to the middle, then to the ends
- 10. Multiple ChoiceWhy does a compass needle point north?The compass is a bar magnetBecause north is upBecause it's magicIt lines up with the Earth's magnetic field
- 11. Multiple ChoiceWhich of the following is a temporary magnet?An electromagnetA needle you magnetized yourselfA magnetic rockA compass
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