Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

[Q]: Context: Energy, or the ability to do work, can exist in many different forms. The photo in Figure 17.8 represents six of the eight different forms of energy that are described in this lesson. The guitarist gets the energy he needs to perform from chemical energy in food. He uses mechanical energy to pluck the strings of the guitar. The stage lights use electrical energy and give off both light energy and thermal energy, commonly called heat. The guitar also uses electrical energy, and it produces sound energy when the guitarist plucks the strings. For an introduction to all these forms of energy, go to this URL: . For an interactive animation about the different forms of energy, visit this URL: After you read below about different forms of energy, you can check your knowledge by doing the drag and drop quiz at this URL: . Mechanical energy is the energy of an object that is moving or has the potential to move. It is the sum of an objects kinetic and potential energy. In Figure 17.9, the basketball has mechanical energy because it is moving. The arrow in the same figure has mechanical energy because it has the potential to move due to the elasticity of the bow. What are some other examples of mechanical energy? Energy is stored in the bonds between atoms that make up compounds. This energy is called chemical energy, and it is a form of potential energy. If the bonds between atoms are broken, the energy is released and can do work. The wood in the fireplace in Figure 17.10 has chemical energy. The energy is released as thermal energy when the wood burns. People and many other living things meet their energy needs with chemical energy stored in food. When food molecules are broken down, the energy is released and may be used to do work. Electrons are negatively charged particles in atoms. Moving electrons have a form of kinetic energy called electrical energy. If youve ever experienced an electric outage, then you know how hard it is to get by without electrical energy. Most of the electrical energy we use is produced by power plants and arrives in our homes through wires. Two other sources of electrical energy are pictured in Figure 17.11. The nuclei of atoms are held together by powerful forces. This gives them a tremendous amount of stored energy, called nuclear energy. The energy can be released and used to do work. This happens in nuclear power plants when nuclei fission, or split apart. It also happens in the sun and other stars when nuclei fuse, or join together. Some of the suns energy travels to Earth, where it warms the planet and provides the energy for photosynthesis (see Figure The atoms that make up matter are in constant motion, so they have kinetic energy. All that motion gives matter thermal energy. Thermal energy is defined as the total kinetic energy of all the atoms that make up an object. It depends on how fast the atoms are moving and how many atoms the object has. Therefore, an object with more mass has greater thermal energy than an object with less mass, even if their individual atoms are moving at the same speed. You can see an example of this in Figure 17.13. Energy that the sun and other stars release into space is called electromagnetic energy. This form of energy travels through space as electrical and magnetic waves. Electromagnetic energy is commonly called light. It includes visible light, as well as radio waves, microwaves, and X rays (Figure 17.14). The drummer in Figure 17.15 is hitting the drumheads with drumsticks. This causes the drumheads to vibrate. The vibrations pass to surrounding air particles and then from one air particle to another in a wave of energy called sound energy. We hear sound when the sound waves reach our ears. Sound energy can travel through air, water, and other substances, but not through empty space. Thats because the energy needs particles of matter to pass it on. Energy often changes from one form to another. For example, the mechanical energy of a moving drumstick changes to sound energy when it strikes the drumhead and causes it to vibrate. Any 
 Question: energy of an object that is moving or has the potential to move
[A]: mechanical energy


[Q]: Context: After Atahualpa's execution, Pizarro installed Atahualpa's brother, Tupac Huallpa, as a puppet Inca ruler, but he soon died unexpectedly, leaving Manco Inca Yupanqui in power. He began his rule as an ally of the Spanish and was respected in the southern regions of the empire, but there was still much unrest in the north near Quito where Atahualpa's generals were amassing troops. Atahualpa's death meant that there was no hostage left to deter these northern armies from attacking the invaders. Led by Atahualpa's generals Ruminahui, Zope-Zupahua and Quisquis, the native armies were finally defeated, effectively ending any organized rebellion in the north of the empire.:221-223,226 Archaeological evidence of the rebellion incident exists. The remains of about 70 men, women, and adolescents were found in the path of a planned expressway near Lima in 2007. Forensic evidence suggests that the natives were killed by European weapons, probably during the uprising in 1536. Manco Inca initially had good relations with Francisco Pizarro and several other Spanish conquistadors. However, in 1535 he was left in Cuzco under the control of Pizarro's brothers, Juan and Gonzalo, who so mistreated Manco Inca that he ultimately rebelled. Under the pretense of recovering a statue of pure gold in the nearby Yucay valley, Manco was able to escape Cuzco.:235-237 
 Question: Who did Tupac Huallpa succeed as Inca ruler?
[A]: atahualpa


[Q]: Context: In 2025, a corporation called The Union has perfected the creation of artificial organs, which have replaced organ transplants. A potential customer can apply for an organ, which is sold on credit, at high interest. If a customer is unable to maintain payments, after three months, a repo-man is sent after the customer to 'reclaim' Union property. The process of the repossession is bloody & brutal, and often results in the death of the customer.Remy is one of the Union's top repo-men, who partners with his childhood friend, Jake, to collect on past due accounts. Remy is highly regarded within The Union as their top performer, though his occupation causes problems with his wife, who sees it as unsavory. After she leaves Remy when Jake commits a repossession in front of their home, Remy decides to transfer to a sales job, much to Jake's chagrin.As his final repossession job, Remy is sent to the residence of a music producer, whose work he happens to admire. After allowing the man enough time to complete a song, Remy prepares to repossess his heart. When he attempts to use a heart defibrillator to stop the unit, the defibrillator malfunctions, sending a large electrical shock through his body and knocking him into a coma. When Remy awakens from his coma, he is informed by Jake and Frank, his co-workers, that the shock severely damaged his heart. He can be fitted with an artificial heart, or die. After Remy attempts to flee the hospital, he reluctantly agrees to the procedure.Remy goes back to work, but is unable to perform his job, because he is just like the people he is repossessing from. He attempts to transition into sales, but quickly finds himself behind in payments. Jake takes Remy to the outskirts of the city to a nest, which is a collection of people who have past due accounts with the Union, but are fleeing to avoid being repossessed. Remy is again unable to perform a repossession, after which he is abandoned by Jake until he can perform his job. Remy is attacked by a pair of men from whom he was expected to repossess artiforgs, and knocked out.Remy, upon awakening, encounters Beth, whom he had met earlier in a bar where she was singing. He discovers that she has multiple body parts on which she is past due, and is currently suffering from a drug addiction. Remy takes her to a motel room, where he stays with her as she goes through withdrawal. After Jake interrupts his attempt to falsify artiforg returns on both of them back at the Union's headquarters, Remy leaves unassailed by Jake, returns to Beth, & the two leave to live in the outskirts.The pair live, for a time, in relative harmony. Remy uses an old typewriter that Beth has found to type up a narrative of his life, and subsequent conversion. As he finishes, a repo-man arrives to repossess his heart, but as he approaches Remy, he falls through a hole Remy has covered in the damaged floor, crashing to the floor below, unconscious. Then Beth, who was hiding behind the door, also falls when the floor collapses under her, re-injuring her leg. From above, Remy sees the Repo man coming to, readying to tranquilize or taze Beth. Remy drops the heavy typewriter onto him through the floor, crushing his head, to save himself and Beth. Using the repo-man's vehicle, Remy sneaks back into his former workplace to obtain a pair of devices that fool organ scanners used by repo-men. He attempts to force Frank to clear his account, only to discover that due to his previous aborted attempt, all accounts can now only be cleared back at the Union's central office.Remy and Beth attempt to flee the country at the airport, but are taken by security when it is discovered that Beth's prosthetic knee was damaged in their earlier encounter with the repo-man. Once inside, they are forced to fight against airport security and another pair of repo-men. They are able to kill or incapacitate 
 Question: Who knocks Remy unconscious?
[A]:
jake