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Read the sentence and choose the correct alternative to complete the gap.
“If it rains tomorrow, _____________.”
Match the words according to their synonyms and choose the correct alternative.
1 – Angry
2 – Tiny
3 – Awful
4 – Thriving
5 – Reasonable
( ) Small
( ) Bad
( ) Mad
( ) Satisfactory
( ) Successful
“To me, a friend is someone who stands by you when you need them...”
1 – someone
2 – who
3 – you
4 – them
( ) relative pronoun
( ) subject pronoun
( ) object pronoun
( ) indefinite pronoun
( ) In Angela’s opinion, a friend is someone who keeps physical contact with a fellow, at least once a year, in order to show the person that he/she cares about him/her.
( ) Gary thinks you should have fun and enjoy life with your friends, talking to them about your interests instead of talking about your problems and above all: without expectations.
( ) As far as Laurie is concerned, a friend is just like parents. Someone you can count on and talk about your feelings.
( ) In Frank’s view, friends are those who have good memories with you; those who are part of your teenager time and because of this should be kept for your whole life.
( ) The fisherman is often fishing, but he only catches old boots and rubbish.
( ) His friends support him to keep trying fishing.
( ) Fishing is only an excuse to stay sitting in boat doing nothing.
( ) He always goes home without any fish, old boot or rubbish inside his bag.
Adote os valores sen 45o = √2/2, sen 15°= 0,26, cos 30°= 0,87 e índice de refração do ar = 1.
I‐ O elétron descreve uma órbita circular ao redor do núcleo pela ação da _____________, obedecendo às leis da Mecânica Clássica.
II‐ Quando um __________, no seu estado normal, absorve de um fóton a quantidade de energia necessária, o seu elétron salta de uma órbita mais interna para outra mais externa de maior energia.
III‐ A energia do __________ somente pode ser absorvida se a sua frequência for igual aquela correspondente à variação de energia do átomo, dada por:
(f = frequência,
ΔE = variação de energia e h = constante de Planck). IV‐ As órbitas circulares são denominadas ____________, e os elétrons dessas órbitas constituem uma camada eletrônica.