Answer the following question given this paragraph: Heat expansion is a result of the increase of kinetic energy of the molecules. As their movement increases, they bump into each other more and the material slightly expands as a result. Most materials expand with heat. Water is a particularly interesting substance in that it contracts as its temperature increases from to (and then expands from to ). Q: Heat expansion is a result of the increase of what type of energy, exhibited by molecules bumping together? Choices: - light energy - radioactivity - harmonic energy - kinetic energy A:
kinetic energy
Answer the following question given this paragraph: Osteoarthritis occurs when the cartilage at the ends of the bones breaks down. The break down of the cartilage leads to pain and stiffness in the joint. Decreased movement of the joint because of the pain may lead to weakening of the muscles that normally move the joint, and the ligaments surrounding the joint may become loose. Osteoarthritis is the most common form of arthritis . It has many contributing factors, including aging, sport injuries, fractures, and obesity. Q: What occurs when the cartilage at the ends of the bones breaks down? Choices: - stress fracture - rheumatism - osteoporosis - osteoarthritis A:
osteoarthritis
Q: Answer the following question given this paragraph: Nearsightedness, or myopia, is the condition in which nearby objects are seen clearly, but distant objects are blurry. It occurs when the eyeball is longer than normal. This causes images to be focused in front of the retina. Myopia can be corrected with concave lenses. The lenses focus images farther back in the eye, so they are on the retina instead of in front of it. Q: What is another term for nearsightedness? Choices: - hypoxia - glaucoma - anemia - myopia A:
A: myopia
Question: Answer the following question given this paragraph: An electric circuit consists of at least one closed loop through which electric current can flow. Every circuit has a voltage source such as a battery and a conductor such as metal wire. A circuit may have other parts as well, such as lights and switches. In addition, a circuit may consist of one loop or two loops. Q: What is the minimum number of loops a circuit can have? Choices: - 3 - .1 - 2 - 1 A:
Answer: 1
*Question*
Answer the following question given this paragraph: Gamma rays are electromagnetic waves that carry photons of energy called gamma particles. They are the most energetic of all electromagnetic waves. Q: Which electromagnetic waves are the most energetic of all electromagnetic waves? Choices: - sunlight rays - plasma rays - ultraviolet rays - gamma rays A:
**Answer**
gamma rays
(Q).
Answer the following question given this paragraph: A chemical reaction occurs when some substances change chemically to other substances. Chemical reactions are represented by chemical equations. Q: What occurs when some substances change chemically to other substances? Choices: - toxic reaction - spontaneous mutation - hormonal reaction - chemical reaction A:
(A).
chemical reaction