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4th Sci Elec & Mag
Chapter 3 Electricity & Magnetism
Question | Answer |
---|---|
a person, thing or event that makes something happen | cause |
whatever is produced by a cause; a result | effect |
a measure of how much a material opposes the flow of electric current and changes electric current into hear energy | resistance |
a material through which electric current passes easily | conductor |
a material through which electric current does not pass easily | insulator |
a circuit that connects several objects one after another so that the current flows in a single path | series circuit |
a circuit that connects several objects in a way that the current for each object has its own path | parallel circuit |
anything that pulls iron, steel and certain other metals to it | magnet |
the force around a magnet | magnetism |
the space around a magnet where magnetism acts | magnetic field |
a place on a magnet where magnetism is strongest | pole |
a small magnet that can turn freely | compass |
a machine that uses an energy source and a magnet to make electricity | generator |
a magnet made when an electric current flows through a wire | electromagnet |