CH7 能量转换
Authored by ET CHNG
Science
7th - 9th Grade
Used 2+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下改变热能的方式是___________。
钻木取火
热传递
做功
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下改变热能的方式是__________。
煮水
热传递
做功
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
气缸吸热800J，体积膨胀对外做功300J，
则其热能的变化是______________。
1100J
300J
800J
500J
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
刹车导致热能增加，这是由_________方式导致的。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
家用的电风扇是由_________能变成__________能。
电，热
电，动
电，光
动，电
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