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






3. The point of a mirror or lens where all light that runs parallel to the principal axis will be focused. Concave mirrors and convex lenses are designed to focus light into the focal point. Convex mirrors and concave lenses focus light away from the fo






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






5. The points midway between nodes on a standing wave - where the oscillations are largest.






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






7. The points of maximum negative displacement along a wave. They are the opposite of wave crests.






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






9. An object that moves about a stable equilibrium point and experiences a restoring force that is directly proportional to the oscillator's displacement.






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






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






12. A unit of measurement for energy on atomic levels. 1 eV = J.






13. A device made of two coils - which converts current of one voltage into current of another voltage. In a step-up transformer - the primary coil has fewer turns than the secondary - thus increasing the voltage. In a step-down transformer - the seconda






14. 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






15. A system that no external net force acts upon. Objects within the system may exert forces upon one another - but they cannot receive any impulse from outside forces. Momentum is conserved in isolated systems.






16. A wave with wave crests that propagate down the length of the medium - in contrast to stationary standing waves. The velocity at which a crest propagates is called the wave speed.






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






18. The amplification of one wave by another - identical wave of the same sign. Two constructively interfering waves are said to be "in phase."






19. The points on a standing wave where total destructive interference causes the medium to remain fixed at its equilibrium position.






20. Waves in which the medium moves in the direction perpendicular to the propagation of the wave. Waves on a stretched string - water waves - and electromagnetic waves are all examples of transverse waves.






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






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






23. A scale for measuring temperature - defined such that 0K is the lowest theoretical temperature a material can have. 273K = 0ºC.






24. A rigid body's resistance to being rotated. The moment of inertia for a single particle is MR2 - where M is the mass of the rigid body and R is the distance to the rotation axis. For rigid bodies - calculating the moment of inertia is more complicate






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






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






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






28. 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.






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






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






32. A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.






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

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34. 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 -






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






36. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.






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






38. 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.






39. 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






40. 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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41. For a reflected light ray - . In other words - a ray of light reflects of a surface in the same plane as the incident ray and the normal - and at an angle to the normal that is equal to the angle between the incident ray and the normal.






42. 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.






43. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.






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






45. The phenomenon of light bouncing off a surface - such as a mirror.






46. 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






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






48. A force caused by the roughness of two materials in contact - deformations in the materials - and a molecular attraction between the materials. Frictional forces are always parallel to the plane of contact between two surfaces and opposite the direct






49. 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.






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







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