Daily Quiz (Technology_2)_4Version en ligne Watch the video and answer the questions. par Jia Ying Ng 1 What does the microphone convert your voice into? a electromagnetic waves b electromagnetic signals c electronic signals d electronic waves 2 After the signal being converted into binary codes, which form do they get packed into? a cell waves b signal waves c electronic waves d radio waves 3 What can a cell tower do? a send the radio waves to the world b send the radio waves to the destination c receive the radio waves to the destination d receive the radio waves to the world 4 What does MSC stand for? a motor signal centre b motor switching centre c mobile switching centre d mobile signal centre 5 The signal transmission can happen in seconds. a true b false 6 If you overuse the phone, you will ________ and _______. a headache ; insomnia b headache ; fever c insomnia ; flu d insomnia ; fever 7 Mobile phones have 15 times more bacteria than toilet handles. a true b false
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