Answer the following question given this paragraph: Mid-wavelength electromagnetic waves are commonly called light. This range of electromagnetic waves has shorter wavelengths and higher frequencies than radio waves, but not as short and high as X rays and gamma rays. Light includes visible light, infrared light, and ultraviolet light. If you look back at Figure above , you can see where these different types of light waves fall in the electromagnetic spectrum. Q: What are mid-wavelength electromagnetic waves commonly referred to as? Choices: - gamma rays - x-rays - electricity - light A:
light
(Question)
Answer the following question given this paragraph: A drug is any chemical that affects the body's structure or function. Many drugs, including both legal and illegal drugs, are psychoactive drugs . This means that they affect the central nervous system, generally by influencing the transmission of nerve impulses. For example, some psychoactive drugs mimic neurotransmitters. At the link below, you can watch an animation showing how psychoactive drugs affect the brain. http://www. thirteen. org/closetohome/animation/neuron-main. html. Q: What word describes any chemical that affects the body's structure or function? Choices: - treatment - toxin - gift - drug A:
(Answer)
drug
Ques: Answer the following question given this paragraph: The car pedal on the right controls the amount of gas the engine gets. How does this affect the car's acceleration?. Q: What function of the car is affected by the pedal that controls the amount of gas the engine gets? Choices: - braking - transmission - shifting - acceleration A:
Ans: acceleration
(Q).
Answer the following question given this paragraph: A common method of producing charge in the lab is to rub cat or rabbit fur against stiff rubber, producing a negative charge on the rubber rod. If you hold a rubber rod on one end and rub only the tip of the other end with a fur, you will find that only the tip becomes charged. The electrons you add to the tip of the rod remain where you put them instead of moving around on the rod. Rubber is an insulator. Insulators are substances that do not allow electrons to move through them. Glass, dry wood, most plastics, cloth, and dry air are common insulators. Materials that allow electrons to flow freely are called conductors. Metals have at least one electron that can move around freely, and all metals are conductors. Q: Rubber is an example of what type of substances that do not allow electrons to move through them? Choices: - conductor - semi-conductor - solids - insulators A:
(A).
insulators
Ques:Answer the following question given this paragraph: Electrons are located at fixed distances from the nucleus, called energy levels. You can see the first three energy levels in the Figure below . The diagram also shows the maximum possible number of electrons at each energy level. Q: Electrons are located at fixed distances from the nucleus, what are they called? Choices: - Energy layers - Positive levels - energy concentrations - energy levels A:

Ans:energy levels
Question: Answer the following question given this paragraph: The strong force predominates and can cause nuclei of complex atoms with many protons to be stable. The electric force of repulsion is responsible for fission, the breaking apart of nuclei, and therefore also for atom bombs and nuclear power. A form of fission where a helium nucleus is a product, is called alpha radiation. The actions of the weak force give rise to beta radiation. A change in nuclear energy can also give rise to gamma radiation , high energy electromagnetic waves. Particles that emit alpha radiation, beta radiation, and gamma radiation go through the process of radioactive decay, which causes the heating of the molten core of the earth, and has even played a role in the mutations in our evolutionary history. Fission and fusion, the latter occurring when light nuclei combine to form new elements, are accompanied by copious amounts of gamma radiation. These processes often produce radioactive nuclei; in nature these radioactive nuclei were forged in the explosive deaths of ancient stars. Q: What electrical force is responsible for fission? Choices: - momentum - velocity - friction - repulsion A:
Answer:
repulsion