According to the Law of Conservation of Energy, energy can never be destroyed, but merely transferred from one form to another. Suppose you lift a 1 kg object into the air a distance of 5 meters by applying a force of 10 Newtons upwards. What can you say about the chemical energy used by your body after you lifted the object?   a. You burned 50 Joules of chemical and transferred it to the object.   b. You gained 100 Joule of chemical energy   c. You gained 500 Joules of energy as the object transferred its potential energy to you.   d. You lost 1000 Joules of energy in the process.

2. Consider the concepts of kinetic energy (KE) and gravitational potential energy (GPE) as you complete these questions. A ball is held 1.4 meters above the floor. Use the terms KE of GPE as your answers. A. When the ball is held motionless above the floor, the ball possesses only B. If the ball is dropped, its energy decreases as it falls. C. If the ball is dropped, its energy increases as it falls. D. In fact, in the absence of air resistance, the amount of impact with the floor. energy. energy when the ball is held motionless above the floor equals the amount of energy at

I'm trying to understand the different types of energies.  I understand the definitions, but when I apply them to situations, it doesn't make much sense to me. I have the following: A. Entrophy - measure of the amt of disorder, or randomness in a system B. Kinetic Energy - Energy in Motion C. Heat - kinetic energy contained in the random motion of atoms & molecules D. Chemical Energy - type of potential energy which arises from the arrangement of atoms and be release in chemical reactions E. Conservation of Energy: Kinetic to Potential Energy - its not possible to destroy or create energy F. Conservation of Energy: Potential to Kinetic G. Potential Energy - Energy an object has because of its location or structure   When I try to apply to the following, I come up with this: A: A Glass falls off the shelf & breaks B. An orange falling from a tree C. During exercise you get extremely hot. D Animals consume food (organic molecules) to make ATP to walk, breathe, etc. E. A large…

3. A 10-Newton object moves to the left at 1 m/s. Its kinetic energy is approximately ____ Joules if you double the speed. a. 0.5 b. 1 c. 10 d. 20  4. Which best describes potential energy? a. Energy as heat b. stored energy c. energy that is used to do work d. energy of motion.

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For locations that have no electric service, companies are designing bicycle-powered generators that are nearly 100% efficient that can be used to charge cell phones or power lights. If you are the person chosen to pedal and your friends need a total of 150 W of electric power, how much metabolic powerwill you use as you pedal?A. 150 W                    B. 300 W                        C. 450 W            D. 600 W