
Understanding Microwaves
Interactive Video
•
Physics
•
6th - 7th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of radiation is used by regular ovens to cook food?
Gamma rays
Ultraviolet radiation
Infrared radiation
Microwaves
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How were microwaves discovered to be useful for cooking?
By testing different wavelengths on food
Through a planned experiment
By observing the sun
Accidentally, when a scientist's candy bar melted
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to water molecules when exposed to microwaves?
They remain unchanged
They evaporate instantly
They vibrate, increasing temperature
They freeze
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why doesn't the microwave oven itself get hot?
It is made of heat-resistant materials
Microwaves are reflected by the metallic sides
It has a cooling system
The food absorbs all the heat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What prevents microwaves from escaping through the glass window of the oven?
A vacuum seal
A thick layer of glass
A metal mesh inside the glass
A plastic coating
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