1. Explain your understanding of energy: a.) What is energy (giving examples)? What are the different...

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1. Explain your understanding of energy: a.) What is energy (giving examples)? What are the different units of energy? b.) What is power? How does it differ from energy? c.) What is the difference between energy and heat? d.) List as many types of energy as possible. e.) 3. For each answer listed above, give an example where it would be important to understand this energy. 2. A piston (diameter 5cm; height 10cm) containing a certain volume of air is placed 2 m above the ground. a.) Define a system. b.) What is the energy of the gas in the piston? c.) The piston is moved and placed on the floor. What is the energy of the gas at its new position? d.) What is the energy of the gas if the piston is compressed to halve its original height? e.) Discuss the importance of defining a system. f.) What is the difference between a system and a reference point? Water falls from a 210 m waterfall. a.) What is the potential energy of the water at the top of the waterfall? b.) Assuming that all the energy is converted to kinetic energy, what is the water's speed at the bottom of the waterfall? c.) The terminal velocity of water is given as roughly 10 m/s (depending on the size of the droplets). How does this compare to the answer for (b)? d.) Assuming that the water droplet is only travelling at 10 m/s when it reaches the bottom of the waterfall, what happened to the remaining energy? e.) If the temperature of the water at the top of the waterfall is 25°C, calculate the temperature of the water at the bottom of the waterfall. Assumption: No water evaporates. 1. Explain your understanding of energy: a.) What is energy (giving examples)? What are the different units of energy? b.) What is power? How does it differ from energy? c.) What is the difference between energy and heat? d.) List as many types of energy as possible. e.) 3. For each answer listed above, give an example where it would be important to understand this energy. 2. A piston (diameter 5cm; height 10cm) containing a certain volume of air is placed 2 m above the ground. a.) Define a system. b.) What is the energy of the gas in the piston? c.) The piston is moved and placed on the floor. What is the energy of the gas at its new position? d.) What is the energy of the gas if the piston is compressed to halve its original height? e.) Discuss the importance of defining a system. f.) What is the difference between a system and a reference point? Water falls from a 210 m waterfall. a.) What is the potential energy of the water at the top of the waterfall? b.) Assuming that all the energy is converted to kinetic energy, what is the water's speed at the bottom of the waterfall? c.) The terminal velocity of water is given as roughly 10 m/s (depending on the size of the droplets). How does this compare to the answer for (b)? d.) Assuming that the water droplet is only travelling at 10 m/s when it reaches the bottom of the waterfall, what happened to the remaining energy? e.) If the temperature of the water at the top of the waterfall is 25°C, calculate the temperature of the water at the bottom of the waterfall. Assumption: No water evaporates.