U0. L'energia i les seves transformacions

Quiz
•
Instructional Technology
•
11th Grade
•
Medium
Elisabet Cabello
Used 13+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El joule és la unitat:
De mesura de la potència
De mesura de la força
De mesura del treball
De mesura del rendiment
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De les unitats següents, quina representa un treball?
KW / hora
KW · hora
kW
N · m
3.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Si tirem un cos de massa 2 kg amunt a una velocitat de 20 m/s, fins a quina altura puja?
392,4m
20,39 m
1,019 m
7 848 m
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Calcula la força necessària per aixecar una caixa de 200kg.
20,39 N
1 692 N
1 800 N
1 962 N
5.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Quin treball s'ha de fer per aixecar una caixa de 2 tones a una alçada de 250 cm?
49 050 J
4 900 J
4 905 000 J
49 J
6.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Quina potència hem de fer si volem moure un armari una distància de 350 cm en 2 min, si per fer-ho s'aplica una força de 700 N?
2042 W
122 500 W
20,42 W
294 000 W
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Quant són 850W en CV?
625 600 CV
1,155 CV
1,214 CV
0,866 CV
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