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10 questions
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- 1. Multiple-choice30 seconds1 pt
A device that change the electrical energy into energy of motion
generator
electric motor
electromagnet
- 2. Multiple-choice30 seconds1 pt
A device that change the electric current into magnetism
generator
electric motor
electromagnet
- 3. Multiple-choice30 seconds1 pt
A device that converts mechanical energy into electrical energy
generator
electric motor
electromagnet
- 4. Multiple-choice30 seconds1 pt
Hydroelectric dams are used to produce
mechanical energy
electrical energy
heat energy
- 5. Multiple-choice30 seconds1 pt
electromagnet can be used in
telephones
electric bulb
electric heater
- 6. Multiple-choice30 seconds1 pt
if you place two like poles of magnets near each other , they ................
repel
attract
nothing happen
- 7. Multiple-choice30 seconds1 pt
the electric motor can be used in ..............
electric bulb
television
electric fan
- 8. Multiple-choice30 seconds1 pt
Electricity can come from batteries or an...
electric power station
airplane
hand phone
- 9. Multiple-choice30 seconds1 pt
The electrical equipment we use in school to help us study is ..
- 10. Multiple-choice30 seconds1 pt
The food processor in the picture use ............... to slice food into pieces
batteries
light
electricity
