Espetro electromagnético
Authored by Professor Prof
Physics
8th Grade
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16 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A luz, tal como o som, propaga-se como uma onda.
A luz é....
....uma onda eletromagnética que se propaga em qualquer meio.
...uma onda eletromagnética que se propaga apenas no vazio.
...uma onda mecânica que se propaga em qualquer meio.
...uma onda mecânica que se propaga no vazio.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considera a seguinte figura:
O tipo de luz que permite a deteção de pequenas farturas ósseas designa-se por ....
....Infravermelhos
.....raios x
....ultravioletas
...micro-ondas
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Seleciona os objetos tecnológicos que são emissores e / ou recetores de micro-ondas.
A e B
B, C e D
A e C
A e D
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
As lâmpadas incandescentes são corpos luminosos que, além de luz visível, também emitem...
Infravermelhos
ultravioleta.
Raios gama.
raios X
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Completa a frase usando letras minúsculas.
O radar usado pela polícia para detetar a velocidade dos veículos é um emissor e recetor de ______________.
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Completa a frase usando letras minúsculas.
A luz ultravioleta é ____________ energética do que os raios X.
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Completa a frase usando letras minúsculas.
A luz branca é visível enquanto que os raios X são ____________.
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