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- 1. Multiple-choice30 seconds1 pt
Which of the following produces a magnetic field?
electric current
copper wire
aurora
infrared wave
- 2. Multiple-choice45 seconds1 pt
Electromagnetic radiation produced by which of the following should we protect ourselves from?
X-Ray scan
iPhone
Microwave
ultraviolet light
- 3. Multiple-choice30 seconds1 pt
Our earth works like an electricity generator and produces a magnetic field. Which of the following words describes this?
geodynamo
geodinosaur
geobicycle
geopsychic
- 4. Multiple-choice30 seconds1 pt
Who is the scientist that discovered electromagnetic induction?
Michael Faraday
Nikola Tesla
袁隆平
Victor Frankenstein
- 5. Multiple-choice30 seconds1 pt
Which of the following words is closest in meaning to TRANSMIT?
transfer
transplant
translate
transparent
- 6. Multiple-choice30 seconds1 pt
Which of the following produces electricity?
changing magnetic field
eye contact
sound wave
visible light
