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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 |