Question

1. According to the law of conservation of energy, energy can only be _______, not created or destroyed.
A. destroyed
B. transformed
C. reduced

2. Why is it impossible for a machine to give you more energy output than the amount of energy put into it?
A. This would violate the law of conservation of energy
B. This would cost too much
C. This would produce too much wasted heat

3. Bronze is a homogenous solution of:
A. Copper and iron
B. Iron and arsenic
C. Copper and tin
D. Tin and silver

4. Which form of energy do we consider to be lost energy?
A. Electrical
B. Heat
C. Mechanic

Answer 1

1. B
2.A
3. C
4. B

Answer 2

Thnks

Answer 3

babe! ha
number
1 is A

Answer 4

davian, seriously? The question for 1 states that A is not the right answer, but otherwise you should know the basic laws described here to be answering questions.

1. B.
2. A.
3. C.
4. B.