Trabajo y energia
Quiz
•
Physics
•
3rd Grade
•
Practice Problem
•
Hard
rafaela fernandez
Used 64+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1-¿Qué sucede a un cuerpo cuando pierde energía calórica?
-Sus moléculas disminuyen su energía cinética.
-Las dimensiones del cuerpo aumentan.
-Sus moléculas aumentan su energía cinética.
-Sus moléculas dejan de vibrar.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se debe al movimiento de las partículas que constituyen la materia:
Energía mecánica
Energía térmica
Energía térmica
Energía cinética
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-¿Cuál es el resultado de multiplicar la masa, gravedad y la altura?
Energía cinética
Fuerza
-Energía potencial
Peso
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es una magnitud que nos relaciona el trabajo realizado con el tiempo empleado en hacerlo:
Energía
Velocidad
Fuerza
Potencia
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-Unidad de medida del trabajo:
Joule
Newton
Watt
-N.s
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-La fórmula de la energía cinética es:
-Ec=v.m
Ec=v2/m
Ec=m.v2/2
Ec=m.v
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es la energía producida por el viento:
Energía potencial
Energía cinética
Energía mecánica
Energía eólica
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