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SAT Subject Test: hysics

Subjects : sat, science, physics
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. An equation - PV = nRT - that relates the pressure - volume - temperature - and quantity of an ideal gas. An ideal gas is one that obeys the approximations laid out in the kinetic theory of gases.






2. A vector quantity - - that reflects the change of angular displacement with time - and is typically given in units of rad/s. To find the direction of the angular velocity vector - take your right hand and curl your fingers along the particle or body






3. A number - Z - associated with the number of protons in the nucleus of an atom. Every element can be defined in s of its atomic number - since every atom of a given element has the same number of protons.






4. The name of an electron released from the surface of a metal due to the photoelectric effect.






5. The temperature at which a material will change phase from solid to liquid or liquid to solid.






6. A vector quantity defined as the rate of change of the displacement vector with time. It is to be contrasted with speed - which is a scalar quantity for which no direction is specified.






7. The path of each planet around the sun is an ellipse with the sun at one focus.

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8. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.






9. An image created by a mirror or lens in such a way that light does not actually come from where the image appears to be.






10. A class of elementary particle whose mass is between that of a proton and that of an electron. A common kind of meson is the pion.






11. A wave that interferes with its own reflection so as to produce oscillations which stand still - rather than traveling down the length of the medium. Standing waves on a string with both ends tied down make up the harmonic series.






12. The joule (J) is the unit of work and energy. A joule is 1 N · m or 1 kg · m2/s2.






13. The longest side of a right triangle - opposite to the right angle.






14. Given the period - T - and semimajor axis - a - of a planet's orbit - the ratio is the same for every planet.

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15. A logorithmic unit for measuring the volume of sound - which is the square of the amplitude of sound waves.






16. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .






17. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.






18. The property of a vector that distinguishes it from a scalar: while scalars have only a magnitude - vectors have both a magnitude and a direction. When graphing vectors in the xy-coordinate space - direction is usually given by the angle measured cou






19. The gravitational force exerted on a given mass.






20. Kinematics is the study and description of the motion of objects.






21. A measure of force per unit area. Pressure is measured in N/m2 or Pa.






22. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.






23. A vector of magnitude 1 along one of the coordinate axes. Generally - we take the basis vectors to be and - the vectors of length 1 along the x- and y-axes - respectively.






24. An area of high air pressure that acts as the wave trough for sound waves. The spacing between successive rarefactions is the wavelength of sound - and the number of successive areas of rarefaction that arrive at the ear per second is the frequency -






25. When electromagnetic radiation shines upon a metal - the surface of the metal releases energized electrons. The way in which these electrons are released contradicts classical theories of electromagnetic radiation and supports the quantum view accord






26. The force between two surfaces moving relative to one another. The frictional force is parallel to the plane of contact between the two objects and in the opposite direction of the sliding object's motion.






27. An image created by a mirror or lens in such a way that light does actually come from where the image appears to be. If you place a screen in front of a real image - the image will be projected onto the screen.






28. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.






29. The coefficient of kinetic friction - - for two materials is the constant of proportionality between the normal force and the force of kinetic friction. It is always a number between zero and one.






30. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.






31. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."






32. Heat transfer by molecular collisions.






33. To every action - there is an equal and opposite reaction. If an object A exerts a force on another object B - B will exert on A a force equal in magnitude and opposite in direction to the force exerted by A.

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34. With spherical mirrors - the radius of the sphere of which the mirror is a part.






35. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.






36. The number of digits that have been accurately measured. When combining several measurements in a formula - the resulting calculation can only have as many significant digits as the measurement that has the smallest number of significant digits.






37. An experiment in 1879 that showed that the speed of light is constant to all observers. Einstein used the results of this experiment as support for his theory of special relativity.






38. The amount of heat necessary to transform a solid at a given temperature into a liquid of the same temperature - or the amount of heat needed to be removed from a liquid of a given temperature to transform it into a solid of the same temperature.






39. The building blocks of all matter - atoms are made up of a nucleus consisting of protons and neutrons - and a number of electrons that orbit the nucleus. An electrically neutral atom has as many protons as it has electrons.






40. Also called a diverging lens - a lens that is thinner in the middle than at the edges. Concave lenses refract light away from a focal point.






41. The cosine of an angle in a right triangle is equal to the length of the side adjacent to the angle divided by the length of the hypotenuse.






42. When a solid - liquid - or gas changes into another phase of matter.






43. The force transmitted along a rope or cable.






44. A scalar quantity. If an object is moved from point A to point B in space along path AB - the distance that the object has traveled is the length of the path AB. Distance is to be contrasted with displacement - which is simply a measure of the distan






45. An object is called radioactive if it undergoes radioactive decay.






46. The force that binds protons and neutrons together in the atomic nucleus.






47. In an interference or diffraction pattern - the places where there is the most light.






48. A vector quantity - commonly denoted by the vector s - which reflects an object's change in spatial position. The displacement vector points from the object's starting position to the object's current position in space. If an object is moved from poi






49. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.






50. In a right triangle - the tangent of a given angle is the length of the side opposite the angle divided by the length of the side adjacent to the triangle.







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