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- 1. 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
- 2. Multiple ChoiceA north pole and a south pole will attract.TrueFalse
- 3. 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
- 4. Multiple ChoiceEarth's magnetic poles are in the same place as the geographic poles.TrueFalse
- 5. Multiple ChoiceMagnetic field lines are closet together at the __________.poleslines
- 6. Multiple ChoiceMagnets can interact without touching.TrueFalse
- 7. Multiple ChoiceMagnetic field lines always cross.TrueFalse
- 8. Multiple ChoiceThe motion of liquid _______ in the Earth's core creates a magnetic field.IronMagnesium
- 9. Multiple Choice
Are the magnetic field lines in the picture correct?
Yes, because they point from north to south.
No, because they point from north to south (they're supposed to go the other way).
Yes, because the North pole is on the left in all pictures.
No, because the North pole is on the left in all pictures (it's supposed to be on the right).
- 10. Multiple Choice
Looking at the field lines in this picture, these two magnets are ________
Attracting
Repelling
Attracting and Repelling
Doing nothing
- 11. Multiple Choice
What is the shape of a magnetic field around the Earth?
- 12. Multiple Choice
What is the shape of a magnetic field around a wire?
- 13. Multiple ChoiceHow are electromagnets different from magnets?magnets can be turned on/offyou can turn an electromagnet on/offmagnets are more powerfulmagnets have a North and South pole
- 14. Multiple Choice
A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.
calculator
ruler
compass
map
- 15. Multiple Choice
Select the diagram with the weakest magnetic field
- 16. Multiple Choice
Where is the magnetic field the strongest around a bar magnet?
far away from the magnet
at the side of the magnet
at the poles
above the magnet
- 17. Multiple Choice
Why does a compass needle point north?
The compass is a bar magnet
Because north is up and you know that up is always north or the stratosphere.
Because it's magic
Because the North end of the compass lines up with the Earth's magnetic south pole
- 18. Multiple ChoiceMagnetic force between two magnets gets weaker the more ________________ between them.distanceattractionmetallightsabers
- Answer choicesTagsAnswer choicesTags