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Forces In Action
Ch.8 Science
Question | Answer |
---|---|
force | is a push, pull or twist |
contact forces | a type of force that occurs with contact. (with to objects touching each other) |
non-contact force | a type of force that occurs without touching |
gravity | force that pulls everything towards the earth |
magnetic forces | another non-contact force. push or pull between two magnets |
electrostatic forces | non-contact force. a force with charges |
permanent Magnet | A magnet that remains it's effect for many years |
temporary magnet | a magnet that remains it's effect for not a very long period of time |
alloys | a mixture of metal with a non-metal or another metal |
north pole | the end of a magnet, when free to rotate, points to the north pole of the earth |
south pole | the other end of a magnet, when free to rotate, points to the south pole of the earth |
magnetic field | the direction at ant point where the north pole of a magnet would face |
atoms | a very small particle that makes up things |