
Trabalho do peso
Authored by Verónica Jacob
Physics
9th - 12th Grade
Used 2+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Numa trajetória retilínea horizontal, o trabalho realizado pelo peso do skater é ?
Positivo
Negativo
Nulo
Depende da velocidade atingida.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
- 0.57 J
0 J
570 J
0.57 J
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Relativamente ao trabalho do peso da bola em função da altura alcançada, selecione o gráfico que representa o lançamento da bola na vertical e para cima.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Um vaso, de 980 gramas, cai verticalmente de uma janela, a uma altura de 2.20 metros. Qual o valor do trabalho realizado pelo peso do vaso?
-9.8 J
21.56 J
0 J
9.8 J
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Uma caixa (8 kg) desliza ao longo de uma rampa de 4 metros de comprimento e 30º de inclinação.
a) A componente eficaz do peso da caixa tem uma intensidade de:
4 N
- 40 N
- 4 N
40 N
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Uma caixa (8 kg) desliza ao longo de uma rampa de 4 metros de comprimento e 30º de inclinação.
b) O trabalho realizado pelo pelo da caixa é:
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