
ONDAS ELETROMAGNÉTICAS AULA 35
Physics
3rd Grade
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the propagation medium for electromagnetic waves?
Only solids
Only liquids
Vacuum and materials
Only gases
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main topic of the document?
Sound waves
Electromagnetic waves
Water waves
Mechanical waves
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who predicted and theorized electromagnetic waves?
Albert Einstein
Isaac Newton
James Clerk Maxwell
Nikola Tesla
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equations did Maxwell use to form wave equations?
Newton's laws
Einstein's relativity
Faraday, Ampère, and Gauss equations
Pythagorean theorem
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What generates electromagnetic waves?
Oscillating electric charges or atomic phenomena
Static electric charges
Magnetic fields only
Gravitational forces
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the wavelength of red light given in the problem?
640 nm
740 nm
840 nm
940 nm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to calculate frequency from speed and wavelength?
f = v/λ
f = v × λ
f = λ/v
f = λ - v
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