
Energia e sistemas físicos
Presentation
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
Sandra Monteiro
FREE Resource
12 Slides • 6 Questions
1
Energia e Sistemas Físicos
2
3
4
5
6
Multiple Choice
Em que unidades se pode exprimir a energia?
Volt (V)
e
Watt (W)
Newton (N)
e
Pascal (Pa)
Joule (J)
e
caloria (cal)
Ohm (Ω)
e
Ampere (A)
7
8
9
Multiple Choice
A mala térmica, com bebidas frescas, é um sistema....
fechado
aberto
isolado
10
Multiple Choice
A garrafa, fechada, de água mineral é um sistema....
isolado
aberto
fechado
11
Multiple Choice
Copo de água gaseificada com gelo é um sistema...
fechado
aberto
isolado
12
13
14
Multiple Choice
O que acontece ao valor total da energia quando há transferência de energia entre sistemas?
Aumenta
Diminui
Mantém-se constante
Depende da temperatura
15
16
Multiple Choice
A água move as pás
de um moinho.
A fonte e o recetor são, respetivamente....
pás do moinho e água
sole pás do moinho
o vento e água
água e pás do moinho
17
18
Energia e Sistemas Físicos
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