Answer the following question given this paragraph: The device in the circuit in Figure above is an ammeter. It measures the current that flows through the wire. The faster the magnet or coil moves, the greater the amount of current that is produced. If more turns were added to the coil, this would increase the strength of the magnetic field as well. If the magnet were moved back and forth repeatedly, the current would keep changing direction. In other words, alternating current would be produced. This is illustrated in Figure below . Q: What device measures current that flows through wire? Choices: - protractor - resistor attachment - Geiger counter - ammeter A:
ammeter
(Question)
Answer the following question given this paragraph: Q: What is located at the center of our solar system? Choices: - a black hole - the moon - the earth - the sun A:
(Answer)
the sun
Ques: Answer the following question given this paragraph: Constructive interference occurs when two wave crests overlap, doubling the wave amplitude at that location. Q: What occurs when two wave crests overlap? Choices: - forth interference - constructive overlap - constructive dissonance - constructive interference A:
Ans: constructive interference
(Q).
Answer the following question given this paragraph: The pressure of a sample of gas is measured with an open-end manometer, partially shown to the right. The liquid in the manometer is mercury. Assuming atmospheric pressure is 29.92 in. Hg, determine the pressure of the gas in: (a) torr (b) Pa (c) bar. Q: The pressure of a sample of gas is measured with an open-end what? Choices: - thermometer - barometer - altimeter - manometer A:
(A).
manometer
Ques:Answer the following question given this paragraph: An underground layer of rock that is saturated with groundwater is called an aquifer . A diagram of an aquifer is shown in Figure below . Aquifers are generally found in porous rock, such as sandstone. Water infiltrates the aquifer from the surface. The water that enters the aquifer is called recharge. Q: What is the term for an underground layer of rock that is saturated with groundwater? Choices: - delta - river - bason - aquifer A:

Ans:aquifer
Ques:Answer the following question given this paragraph: Introduction to Work, Energy, and Energy Resources Energy plays an essential role both in everyday events and in scientific phenomena. You can no doubt name many forms of energy, from that provided by our foods, to the energy we use to run our cars, to the sunlight that warms us on the beach. You can also cite examples of what people call energy that may not be scientific, such as someone having an energetic personality. Not only does energy have many interesting forms, it is involved in almost all phenomena, and is one of the most important concepts of physics. What makes it even more important is that the total amount of energy in the universe is constant. Energy can change forms, but it cannot appear from nothing or disappear without a trace. Energy is thus one of a handful of physical quantities that we say is conserved. Conservation of energy (as physicists like to call the principle that energy can neither be created nor destroyed) is based on experiment. Even as scientists discovered new forms of energy, conservation of energy has always been found to apply. Perhaps the most dramatic example of this was supplied by Einstein when he suggested that mass is equivalent to energy (his famous equation E = mc 2 ). From a societal viewpoint, energy is one of the major building blocks of modern civilization. Energy resources are key limiting factors to economic growth. The world use of energy resources, especially oil, continues to grow, with ominous consequences economically, socially, politically, and environmentally. We will briefly examine the world's energy use patterns at the end of this chapter. There is no simple, yet accurate, scientific definition for energy. Energy is characterized by its many forms and the fact that it is conserved. We can loosely define energy as the ability to do work, admitting that in some circumstances not all energy is available to do work. Because of the association of energy with work, we begin the chapter with a discussion of work. Work is intimately related to energy and... Q: Closely associated with "work", what is characterized by its many forms and the fact that it is conserved? Choices: - heating - fuel - matter - energy A:

Ans:
energy