Microwave radiation (Edexcel GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
How do microwave wavelengths compare to infrared wavelengths?
How do microwave wavelengths compare to infrared wavelengths?
Microwaves have longer wavelengths
How do microwave wavelengths compare to radio wave wavelengths?
How do microwave wavelengths compare to radio wave wavelengths?
Microwaves have shorter wavelengths
What is the name for the microwave radiation detected from all parts of the universe?
What is the name for the microwave radiation detected from all parts of the universe?
Cosmic Microwave Background Radiation
What theory does CMB radiation provide strong evidence for?
What theory does CMB radiation provide strong evidence for?
The Big Bang theory
What is CMB radiation believed to be?
What is CMB radiation believed to be?
Leftover energy from the Big Bang
Approximately how long ago did the Big Bang happen?
Approximately how long ago did the Big Bang happen?
13.8 billion years ago
At what age does CMB radiation provide a snapshot of the universe?
At what age does CMB radiation provide a snapshot of the universe?
About 380,000 years old
What molecules do microwaves cause to vibrate in food?
What molecules do microwaves cause to vibrate in food?
Water molecules
What does the vibration of molecules in microwave ovens produce?
What does the vibration of molecules in microwave ovens produce?
Heat
Why are microwaves useful for satellite communications?
Why are microwaves useful for satellite communications?
They can pass through Earth's atmosphere
How are microwaves affected by weather compared to other radiation types?
How are microwaves affected by weather compared to other radiation types?
They are less affected by weather