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NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_0488 | image | textbook_images/telescopes_20336.png | FIGURE 23.2 An electromagnetic wave has oscillating electric and magnetic fields. | 0.279641 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_4880 | image | textbook_images/sources_of_visible_light_23094.png | FIGURE 1.1 | 0.277485 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | DQ_011396 | image | question_images/circuits_669.png | circuits_669.png | 0.274618 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_4606 | image | textbook_images/mendeleevs_periodic_table_22942.png | FIGURE 1.1 | 0.273118 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | DQ_011210 | image | question_images/parts_telescope_8150.png | parts_telescope_8150.png | 0.272581 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | DQ_011312 | image | question_images/circuits_1571.png | circuits_1571.png | 0.270647 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_3553 | image | textbook_images/nuclear_energy_22240.png | FIGURE 11.18 Albert Einstein is considered by many to be the greatest physicist of all time. | 0.267353 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_4141 | image | textbook_images/atomic_nucleus_22673.png | FIGURE 1.1 | 0.26527 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | DQ_011367 | image | question_images/circuits_219.png | circuits_219.png | 0.260234 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_0215 | image | textbook_images/energy_in_the_atmosphere_20140.png | FIGURE 15.8 Compare the wavelengths of radio waves and gamma rays. Which type of wave has more energy? | 0.259944 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_4644 | text | null | Science is more about gaining knowledge than it is about simply having knowledge. Science is a way of learning about the natural world that is based on evidence and logic. In other words, science is a process, not just a body of facts. Through the process of science, our knowledge of the world advances. | 0.655641 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_3984 | text | null | The next major advance in the history of the atom was the discovery of electrons. These were the first subatomic particles to be identified. They were discovered in 1897 by a British physicist named J. J. Thomson. You can learn more about Thomson and his discovery at this online exhibit: . | 0.653591 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_0726 | text | null | Nuclear energy is produced by splitting the nucleus of an atom. This releases a huge amount of energy. | 0.643375 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_3801 | text | null | Although all electromagnetic waves travel at the same speed, they may differ in their wavelength and frequency. | 0.638663 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_1711 | text | null | Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy through the empty space between the Sun and the Earth as radiation. | 0.63059 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_3943 | text | null | The particles that make up matter are also constantly moving. They have kinetic energy. The theory that all matter consists of constantly moving particles is called the kinetic theory of matter. You can learn more about it at the URL below. | 0.630269 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_0698 | text | null | Energy changes form when something happens. But the total amount of energy always stays the same. The Law of Conservation of Energy says that energy cannot be created or destroyed. Scientists observed that energy could change from one form to another. They also observed that the overall amount of energy did not change. | 0.630126 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_4997 | text | null | A photon isnt a fixed amount of energy. Instead, the amount of energy in a photon depends on the frequency of the electromagnetic wave. The frequency of a wave is the number of waves that pass a fixed point in a given amount of time, such as the number of waves per second. In waves with higher frequencies, photons have more energy. | 0.62612 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_0217 | text | null | Radiation is the transfer of energy by waves. Energy can travel as waves through air or empty space. The Suns energy travels through space by radiation. After sunlight heats the planets surface, some heat radiates back into the atmosphere. | 0.626047 |
NDQ_018929 | the scientist who won the 1930 nobel prize for physics for discoveries about light was | null | a. Mayer., b. Curie., c. Raman., d. Molina. | c | T_3860 | text | null | Electric current cannot travel through empty space. It needs a material through which to travel. However, when current travels through a material, the flowing electrons collide with particles of the material, and this creates resistance. | 0.623125 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_4141 | image | textbook_images/atomic_nucleus_22673.png | FIGURE 1.1 | 0.246848 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_0695 | image | textbook_images/metamorphic_rocks_20483.png | FIGURE 4.16 (A) Marble is a beautiful rock that is com- monly used for buildings. (B) Many of the great statues of the Renaissance were carved from marble. Michelangelo cre- ated this Moses between 1513 and 1515. | 0.24473 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_4392 | image | textbook_images/electron_cloud_atomic_model_22809.png | FIGURE 1.3 | 0.24433 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | DD_0085 | image | teaching_images/radioactive_decay_7517.png | Gamma decay is the process by which the nucleus of an atom emits a high energy photon, that is, extremely short-wavelength electromagnetic radiation. It is one of three major types of radioactivity (the other two being alpha decay and beta decay). Gamma decay is similar to the emission of light (usually visible light) by decay in the orbits of the electrons surrounding the nucleus. In each case the energy states, and the wavelengths of the emitted radiation, are governed by the law of quantum mechanics. But while the electron orbits have relatively low energy, the nuclear states have much higher energy. Gamma decay is a process of emission of gamma rays that accompanies other forms of radioactive decay, such as alpha and beta decay. Nuclei are not normally in excited states, so gamma radiation is typically incidental to alpha or beta decayóîthe alpha or beta decay leaves the nucleus in an excited state, and gamma decay happens soon afterwards. Gamma radiation is the most penetrating of the three kinds. Gamma ray photons can travel through several centimeters of aluminum. | 0.242813 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | atomic_structure_9018 | image | teaching_images/atomic_structure_9018.png | This image shows the electron shells of a Germanium atom. There are a total of 32 orbiting electrons in four distinct shells. The inner shell has two electrons. The second shell has 8 electrons. The third shell has 18 electrons. The fourth, outer shell has 4 electrons. The electrons in the outer shell are called valence electrons. In the center of the atom sits the nucleus. The nucleus has a positive charge. | 0.241838 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_3992 | image | textbook_images/modern_atomic_theory_22571.png | FIGURE 5.14 In Bohrs atomic model, electrons orbit at fixed distances from the nucleus. These distances are called energy levels. | 0.240848 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | DQ_012013 | image | question_images/chemical_bonding_ionic_9072.png | chemical_bonding_ionic_9072.png | 0.240586 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | DQ_010756 | image | question_images/nuclear_energy_8103.png | nuclear_energy_8103.png | 0.239195 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | DQ_011823 | image | question_images/isotopes_8096.png | isotopes_8096.png | 0.238024 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | DQ_002709 | image | question_images/radioactive_decay_8171.png | radioactive_decay_8171.png | 0.237746 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_1604 | text | null | Radioactivity is the tendency of certain atoms to decay into lighter atoms, a process that emits energy. Radioactivity also provides a way to find the absolute age of a rock. First, we need to know about radioactive decay. | 0.582861 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_4823 | text | null | Newtons third law of motion is just one of many scientific laws. A scientific law is a statement describing what always happens under certain conditions. Other examples of laws in physical science include: Newtons first law of motion Newtons second law of motion Newtons law of universal gravitation Law of conservation of mass Law of conservation of energy Law of conservation of momentum | 0.580299 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_0726 | text | null | Nuclear energy is produced by splitting the nucleus of an atom. This releases a huge amount of energy. | 0.580135 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.574512 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_1607 | text | null | Radiometric dating is the process of using the concentrations of radioactive substances and daughter products to estimate the age of a material. Different isotopes are used to date materials of different ages. Using more than one isotope helps scientists to check the accuracy of the ages that they calculate. | 0.570233 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_2221 | text | null | No doubt youve had the common cold. When you did, you probably had respiratory system symptoms. For example, you may have had a stuffy nose that made it hard to breathe. While you may feel miserable when you have a cold, it is generally a relatively mild disease. Many other respiratory system diseases are more serious. | 0.566671 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_2590 | text | null | Darwin spent many years thinking about his own observations and the writings of Lamarck, Lyell, and Malthus. What did it all mean? How did it all fit together? The answer, of course, is the theory of evolution by natural selection. | 0.563741 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_1468 | text | null | Minerals are made by natural processes, those that occur in or on Earth. A diamond created deep in Earths crust is a mineral, but a diamond made in a laboratory by humans is not. Be careful about buying a laboratory-made diamond for jewelry. It may look pretty, but its not a diamond and is not technically a mineral. | 0.563058 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_4438 | text | null | A combustion engine is a complex machine that burns fuel to produce thermal energy and then uses the thermal energy to do work. There are two types of combustion engines: external and internal. A steam engine is an external combustion engine. | 0.5579 |
NDQ_018930 | discoveries of marie curie include | null | a. radiation., b. radium., c. polonium., d. all of the above | d | T_2587 | text | null | Besides his observations on the Beagle, other influences helped Darwin develop his theory of evolution by natural selection. These included his knowledge of plant and animal breeding and the ideas of other scientists. | 0.5568 |
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