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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. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.






2. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.






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






4. The emf created by the motion of a charge through a magnetic field.






5. A scalar quantity that tells us how fast an object is moving. It measures the rate of change in distance over time. Speed is to be contrasted with velocity in that there is no direction associated with speed.






6. A negatively charged particle that orbits the nucleus of the atom.






7. The ray of light that is reflected from a mirror or other reflecting surface.






8. The energy of the molecules that make up an object. It is related to heat - which is the amount of energy transferred from one object to another object that is a different temperature.






9. 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.






10. The force transmitted along a rope or cable.






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






12. 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.






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






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






15. 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






16. 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.






17. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.






18. The state of a nonrotating object upon whom the net torque acting is zero.






19. The energy of a particle rotating around an axis.






20. When two waves of slightly different frequencies interfere with one another - they produce a "beating" interference pattern that alternates between constructive (in-phase) and destructive (out-of-phase). In the case of sound waves - this sort of inte






21. A constant - - not to be confused with wavelength - that defines the speed at which a radioactive element undergoes decay. The greater is - the faster the element decays.






22. A unit for measuring angles; also called a "rad." 2p rad = 360º.






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






24. A device that breaks incoming light down into spectral rays - so that one can see the exact wavelength constituents of the light.






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






26. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.






27. A nuclear reaction in which a high-energy neutron bombards a heavy - unstable atomic nucleus - causing it to split into two smaller nuclei - and releasing some neutrons and a vast amount of energy at the same time






28. The time it takes a system to pass through one cycle of its repetitive motion. The period - T - is the inverse of the motion's frequency - f = 1/T.






29. An object cannot be cooled to absolute zero.






30. 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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31. In reference to oscillation - amplitude is the maximum displacement of the oscillator from its equilibrium position. Amplitude tells how far an oscillator is swinging back and forth. In periodic motion - amplitude is the maximum displacement in each






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






33. A measurement of a body's inertia - or resistance to being accelerated.






34. The time - T - required for a rigid body to complete one revolution.






35. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.






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






37. A wave on a string that is tied to a pole at one end will reflect back toward its source - producing a wave that is the mirror-image of the original and which travels in the opposite direction.






38. F = ma. The net force - F - acting on an object causes the object to accelerate - a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely proportional to the mass - m - of the object.

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39. A wavelength - given by = h/mv - which is associated with matter. Louis de Broglie proposed the idea that matter could be treated as waves in 1923 and applied this theory successfully to small particles like electrons.






40. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .

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






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






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






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






45. If a line is drawn from the sun to the planet - then the area swept out by this line in a given time interval is constant.

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






47. The movement of a rigid body's center of mass in space.






48. A pendulum consists of a bob connected to a rod or rope. At small angles - a pendulum's motion approximates simple harmonic motion as it swings back and forth without friction.






49. A form of vector multiplication - where two vectors are multiplied to produce a third vector. The cross product of two vectors - A and B - separated by an angle - - is - where is a unit vector perpendicular to both A and B. To deine which direction






50. The number of cycles executed by a system in one second. Frequency is the inverse of period - f = 1/T. Frequency is measured in hertz - Hz.