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U 8 Electricity
| Question | Answer |
|---|---|
| static electricity | The build up of electric charges on an object |
| circuit | A path along which electric charges flow |
| magnet | An object that attracts iron and a few other metals |
| A nail is a good | electrical conductor |
| Coal is a non renewable source | that will eventually run out |
| A series circuit with a broken bulb | is an open circuit |
| attract | Balloons with opposite charges will |
| A parallel circuit has | many paths to follow |
| True or false 3? An electromagnet is made from a battery, nail, and string. | False 3. An electromagnet is made from a battery, nail, and wire. |
| True or False 4? Two balloons that are both negatively charged will attract to each other. | False 4. Balloons that are both negatively charged will repel each other. |
| True or false 1? Electrical energy can be transformed into light, sound, or heat energy. | True 1 |
| True or false 2? Electromagnets can be found in many devices, such as computers, telephones, and speakers. | True 2 |
| True or False 5? A series circuit has one path for the electrical currents to follow. | True 5 |
| Electricity | This is used and produced in many ways |
| Series | This circuit has one path to follow |
| Electromagnet | An electric current produces this magnetism |
| Parallel | This circuit could keep working because it has many paths. |
| electric motor | A device that changes electrical energy into mechanical energy |
| conductor | A material through which electricity travels easily. |
| electrical current | The flow of electrical charges along a path |
| generator | A device that produces an electric current by converting mechanical energy to electrical energy. |
| An insulator is not | a form of energy. |
| Rocks are not a part of | the Water Cycle |
| The sun | is the major source of energy for the Water cycle. |
| Sound energy is a type of | energy that results from vibrations that travel through the air. |
| Mechanical energy is the sum of | Potential and Kinetic energy. |