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WorksheetsScitech: modern technology 1,2,3 สรุป by korn เภสัช
Total questions: 15
Worksheet time: 30mins
what is the thing we use to Converts electricity into radio waves that are transmitted, and convert received radio waves into electricity ?
Antenna
Semaphore
Modulation
radar
Compressor is use to make the refrigerant vapour and turn to make the refrigerant water increase its temperature and pressure.
True
False
Expansion valve and the evaporator coil are on the outside side of the air conditioner
True
False
What is this ?
Compressor
Expansion vavle
Condenser coil
Explosion valve
this is a condenser coil
True
False
Nuclear power is a renewable energy
True
False
Light-emittingdiote television use semi conductor to emit light
True
False
What is the the wave that we use to use our Television remote?
radio wave
Microwave
Infared wave
X-ray wave
Percy spencer is the person that discover that microwave can heat food?
True
False
What is the first electric home appliance
Refrigerator
Television
Vacuum
electric fan
Persia use wind tower to make their home cool
True
False
microwave have shorter wave length than infrared
True
False
The first mobile phone was Motorola dyna tac 8000x
True
False
What is the number one most common renewable energy that we produce and use for daily life?
Hydro power
Solar energy
Bio energy
Wind power
Bioethanol use ethanol that make by a fermentation of ?
Corn
Sunflower
Bean
potato
