Visible light and microwaves are both electromagnetic waves - Edexcel - GCSE Physics - Question 5 - 2017 - Paper 1
Question 5
Visible light and microwaves are both electromagnetic waves.
(a) (i) Complete the sentence by putting a cross (✔) in the box next to your answer.
Electromagnetic w... show full transcript
Worked Solution & Example Answer:Visible light and microwaves are both electromagnetic waves - Edexcel - GCSE Physics - Question 5 - 2017 - Paper 1
Step 1
Complete the sentence by putting a cross (✔) in the box next to your answer.
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Answer
Electromagnetic waves C all travel at the same speed in a vacuum. This is the only correct statement as the speed of electromagnetic waves is constant in a vacuum, regardless of their wavelength or frequency.
Step 2
Complete the diagram by writing in the four missing colours.
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Answer
The missing colours in order of frequency from low to high are: red, orange, green, and violet.
Step 3
State two uses for microwaves.
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Answer
Cooking food - Microwaves are commonly used in microwave ovens to heat and cook various types of food.
Mobile phones - Microwaves facilitate communication in mobile phone technology.
