
Quiz sobre Calor e Termodinâmica
Authored by JOSE SILVA
Physics
Professional Development
10 Questions

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um corpo de 2 kg tem seu calor específico igual a 500 J/kg·°C. Qual a quantidade de calor necessária para aumentar sua temperatura em 10 °C?
10000 J
5000 J
2000 J
2500 J
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um corpo de 500 g recebe 750 J de calor. Sabendo que o calor específico é 1,5 J/g·°C, qual foi a variação de temperatura?
1 °C
2 °C
3 °C
4 °C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A massa de um corpo é 3 kg, seu calor específico é 400 J/kg·°C e houve um aquecimento de 5 °C. Qual o calor recebido?
6000 J
4000 J
3000 J
5000 J
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula para calcular a quantidade de calor sensível?
Q = m·L
Q = m·c·ΔT
Q = c·ΔT
Q = m·ΔT
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um corpo tem massa de 3 kg e calor específico 300 J/kg-°C. Qual a variação de temperatura ao receber 4500 J?
5 °C
10 °C
15 °C
20 °C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o calor necessário para fundir 2 kg de gelo a 0 °C? (Lf = 80 cal/g)
16000 cal
8000 cal
4000 cal
32000 cal
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quantos gramas de gelo podem ser fundidos com 4000 cal? (Lf = 80 cal/g)
50 g
100 g
200 g
400 g
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