Question

name: date: understanding energy: forms, conservation, and heat transfer fill in the blank: fill in the blank with the correct words. 1. the energy of motion is called energy. 2. the energy stored in an object due to its position is called energy. 3. the law of of energy states that energy cannot be created or destroyed. 4. when a ball is released from the top of a ramp, its energy transforms into kinetic energy. 5. the sum of the potential and kinetic energy of an object is called energy. 6. the transfer of energy through direct contact is called. 7. the transfer of thermal energy by the movement of fluids is called. 8. heat always moves from a object to a object. 9. the transfer of energy as electromagnetic waves is called. 10. the process of maintaining a constant internal environment in the body is called. word bank: cooler convection conduction mechanical conservation warmer kinetic potential radiation potential homeostasis multiple choice questions: choose the correct answer from the choices for each question. 11. which of the following is an example of kinetic energy? a) a stretched bow b) a book on a shelf c) a rolling ball d) a battery 12. what happens to the potential energy of a rollercoaster as it goes down the first hill? a) it disappears b) it is transformed into kinetic energy c) it is destroyed d) it increases 13. which type of heat transfer does not require a medium or direct contact? a) conduction b) convection c) radiation d) insulation 14. a ball held at the top of a ramp has: a) kinetic energy only b) no energy c) potential energy d) chemical energy 15. the main reason the first hill of a rollercoaster is the highest is to: a) increase friction b) maximize potential energy c) decrease speed

Explanation:

1. Kinetic energy is the energy of motion.
2. Potential energy is the energy stored in an object due to its position.
3. The law of conservation of energy states that energy cannot be created or destroyed.
4. When a ball is released from the top of a ramp, its potential energy transforms into kinetic energy.
5. The sum of the potential and kinetic energy of an object is called mechanical energy.
6. The transfer of energy through direct contact is called conduction.
7. The transfer of thermal energy by the movement of fluids is called convection.
8. Heat always moves from a warmer object to a cooler object.
9. The transfer of energy as electromagnetic waves is called radiation.
10. The process of maintaining a constant internal environment in the body is called homeostasis.
11. A rolling ball is in motion, so it has kinetic energy. A stretched bow, a book on a shelf, and a battery have potential energy.
12. According to the law of conservation of energy, potential energy is transformed into kinetic energy when a rollercoaster goes down the first hill.
13. Radiation is the transfer of energy as electromagnetic waves and does not require a medium or direct contact. Conduction and convection require a medium. Insulation is not a type of heat transfer.
14. A ball held at the top of a ramp has potential energy due to its position. It is not in motion, so it does not have kinetic energy.
15. The main reason the first hill of a rollercoaster is the highest is to maximize potential energy. This potential energy is then transformed into kinetic energy as the rollercoaster goes down the hill.

Answer:

1. kinetic
2. potential
3. conservation
4. potential
5. mechanical
6. conduction
7. convection
8. warmer; cooler
9. radiation
10. homeostasis
11. C. A rolling ball
12. B. It is transformed into kinetic energy
13. C. Radiation
14. C. Potential energy
15. B. Maximize potential energy