Microwaves Flashcards
1
Q
Why do they increase vibrations?
A
They have a similar frequency to the vibrations of many molecules
2
Q
What is the result of this?
A
Internal heating - the heating of molecules inside things
3
Q
What do microwaves do internally in this way?
A
Heat human body tissue
4
Q
Why do microwave ovens need to have shielding?
A
To prevent microwaves from reaching the user
