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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 effect of force on rotational motion.






2. A property common to both vectors and scalars. In the graphical representation of a vector - the vector's magnitude is equal to the length of the arrow.






3. The number of hydrogen atoms in one gram of hydrogen - equal to . When counting the number of molecules in a gas - it is often convenient to count them in moles.






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






5. The gravitational force exerted on a given mass.






6. The current induced in a circuit by a change in magnetic flux.






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






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






9. The square of the amplitude of a sound wave is called the sound's loudness - or volume.






10. The model of the atom according to which negatively charged electrons orbit a positively charged nucleus. This model was developed by Ernest Rutherford in light of the results from his gold foil experiment.






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






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






13. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.

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






15. The velocity at any given instant in time. To be contrasted with average velocity - which is a measure of the change in displacement over a given time interval.






16. 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.






17. In an interference or diffraction pattern - the places where there is the least light.






18. The motion of a body in a circular path with constant speed.






19. The amount of energy that metal must absorb before it can release a photoelectron from the metal.






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






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






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






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






24. A model for the atom developed in 1913 by Niels Bohr. According to this model - the electrons orbiting a nucleus can only orbit at certain particular radii. Excited electrons may jump to a more distant radii and then return to their ground state - em






25. 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.






26. 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






27. Relates the angle of incidence to the angle of refraction: .

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28. The amount of heat of a material required to raise the temperature of either one kilogram or one gram of that material by one degree Celsius. Different units may be used depending on whether specific heat is measured in s of grams or kilograms - and






29. The ray of light that is refracted through a surface into a different medium.






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






31. In the graphical representation of vectors - the tip of the arrow is the pointy end.






32. When objects collide - each object feels a force for a short amount of time. This force imparts an impulse - or changes the momentum of each of the colliding objects. The momentum of a system is conserved in all kinds of collisions. Kinetic energy is






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






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






35. A collision in which momentum is conserved but kinetic energy is not.






36. The substance that is displaced as a wave propagates through it. Air is the medium for sound waves - the string is the medium of transverse waves on a string - and water is the medium for ocean waves. Note that even if the waves in a given medium tra






37. 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.






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






39. 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.






40. There are a few versions of this law. One is that heat flows spontaneously from hot to cold - but not in the reverse direction. Another is that there is no such thing as a 100% efficient heat engine. A third states that the entropy - or disorder - of






41. 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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42. 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.






43. Heat transfer via electromagnetic waves.






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

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45. Defined as the rate at which work is done - or the rate at which energy is transformed. P is measured in joules per second (J/s) - or watts (W).






46. Another word for the frequency of a sound wave.






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






48. 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.






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






50. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.