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






2. A unit of force: 1 N is equivalent to a 1 kg · m/s2.






3. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.






4. The property by which a charge moving in a magnetic field creates an electric field.






5. The amount of heat necessary to transform a liquid at a given temperature into a gas of the same temperature - or the amount of heat needed to be taken away from a gas of a given temperature to transform it into a liquid of the same temperature.






6. A rough approximation of how gases work - that is quite accurate in everyday conditions. According to the kinetic theory - gases are made up of tiny - round molecules that move about in accordance with Newton's Laws - and collide with one another and






7. The number - N - of neutrons in an atomic nucleus.






8. States that the current induced in a circuit by a change in magnetic flux is in the direction that will oppose that change in flux. Using the right-hand rule - point your thumb in the opposite direction of the change in magnetic flux. The direction y

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9. A small particle-like bundle of electromagnetic radiation.






10. 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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11. An area of high air pressure that acts as the wave crest for sound waves. The spacing between successive compressions is the wavelength of sound - and the number of successive areas of compression that arrive at the ear per second is the frequency -






12. Heat transfer via the mass movement of molecules.






13. Two quantities are directly proportional if an increase in one results in a proportional increase in the other - and a decrease in one results in a proportional decrease in the other. In a formula defining a certain quantity - those quantities to whi






14. 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 -






15. 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.






16. A mirror that is curved such that its center is closer to the viewer than the edges - such as a doorknob. Convex mirrors reflect light away from a focal point.






17. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.






18. 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.






19. Indicates how "bouncy" or "stiff" a spring is. More specifically - the spring constant - k - is the constant of proportionality between the restoring force exerted by the spring - and the spring's displacement from equilibrium. The greater the value






20. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.






21. A vector quantity defined as the rate of change of the velocity vector with time.






22. The position - of an object according to a co-ordinate system measured in s of the angle of the object from a certain origin axis. Conventionally - this origin axis is the positive x-axis.






23. The stable position of a system where the net force acting on the object is zero.






24. A transfer of thermal energy. We don't speak about systems "having" heat - but about their "transferring" heat - much in the way that dynamical systems don't "have" work - but rather "do" work.






25. The amount heat necessary to cause a substance to undergo a phase transition.






26. 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.






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






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






29. For a gas held at a constant temperature - pressure and volume are inversely proportional.

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30. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).






31. In a right triangle - the sine of a given angle is the length of the side opposite the angle divided by the length of the hypotenuse.






32. Life- The amount of time it takes for one-half of a radioactive sample to decay.






33. In oscillation - a cycle occurs when an object undergoing oscillatory motion completes a "round-trip." For instance - a pendulum bob released at angle has completed one cycle when it swings to and then back to again. In period motion - a cycle is the






34. The force between two surfaces that are not moving relative to one another. The force of static friction is parallel to the plane of contact between the two objects and resists the force pushing or pulling on the object.






35. The ratio of the size of the image produced by a mirror or lens to the size of the original object. This number is negative if the image is upside-down.






36. 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






37. The property by which a changing current in one coil of wire induces an emf in another.






38. For a gas held at constant pressure - temperature and volume are directly proportional.

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39. A nuclear reaction that takes place only at very high temperatures. Two light atoms - often hydrogen - fuse together to form a larger single atom - releasing a vast amount of energy in the process.






40. The reaction force of the ground - a table - etc. - when an object is placed upon it. The normal force is a direct consequence of Newton's Third Law: when an object is placed on the ground - the ground pushes back with the same force that it is pushe






41. A form of radioactive decay where a heavy element emits an alpha particle and some energy - thus transforming into a lighter - more stable - element.






42. The angle between a reflected ray and the normal.






43. A push or a pull that causes an object to accelerate.






44. A measure of the average kinetic energy of the molecules in a system. Temperature is related to heat by the specific heat of a given substance.






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






46. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.






47. The amount of error that's possible in a given measurement.






48. The straight line that runs through the focal point and the vertex of a mirror or lens.






49. The net change - - in a point's angular position - . It is a scalar quantity.






50. Two materials are in thermal equilibrium if they are at the same temperature.