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electrical+magnetism
science
| Question | Answer |
|---|---|
| What type of energy is a battery? | chemical energy |
| What type of energy is a solar cell? | light energy (solar/radiant) |
| What type of energy is a electrical outlet? | chemical energy |
| What is a conductor? | electrical energy (wire) that connects all parts of an electrical circuit |
| What is a device? | an object you want to give power to |
| A circuit must be____ to flow power | closed |
| Electrical energy transformations | battery(chemical source)-wires(conductor electrical)-fan(device mechanical) |
| What is the Law of Conservation of energy? | Energy can’t be created or destroyed; it only changes form |
| What is magnetism? | the force of attraction or repulsion of magnetic materials |
| How is magnetism and electricity interrelated? | Electromagnets (An electromagnet is formed when a wire in an electric circuit is wrapped around an iron core producing a magnetic field. Energy input and number of wraps of wire around the iron core determine intensity) |
| What poles on magnets repel and attract? | Like poles of magnets repel; unlike poles attract |
| How is magnetism and electricity interrelated? | Generators (A generator produces an electric current when a coil of wire wrapped around an iron core is rotated near a magnet. Mechanical energy is changed to electrical energy by a generator. |
| How is magnetism and electricity interrelated? | Simple Electric Motors (An electric motor changes electric energy into mechanical energy It contains an electromagnet that rotates between the poles of a magnet The coil of the electromagnet is connected to a battery or other source of electrical current) |
| What is a generator? | produces an electric current when a coil of wire wrapped around an iron core is rotated near a magnet. |
| What are Simple Electric Motors? | changes electric energy into mechanical energy It contains an electromagnet that rotates between the poles of a magnet The coil of the electromagnet is connected to a battery or other source of electrical current |
| What are Electromagnets? | formed when a wire in an electric circuit is wrapped around an iron core producing a magnetic field. Energy input and number of wraps of wire around the iron core determine intensity |
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