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






2. The bending of light at the corners of objects or as it passes through narrow slits or apertures.






3. A body or set of bodies that we choose to analyze as a group.






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






5. For an oscillating spring - the restoring force exerted by the spring is directly proportional to the displacement. That is - the more the spring is displaced - the stronger the force that will pull toward the equilibrium position. This law is expres

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






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






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






9. An object at rest remains at rest - unless acted upon by a net force. An object in motion remains in motion - unless acted upon by a net force.

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






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






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






13. 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






14. 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.






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






16. 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






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






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






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






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






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






22. A vector quantity - or vector - is an object possessing - and fully described by - a magnitude and a direction. Graphically a vector is depicted as an arrow with its magnitude given by the length of the arrow and its direction given by where the arro






23. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.






24. The points of maximum displacement along a wave. In traveling waves - the crests move in the direction of propagation of the wave. The crests of standing waves - also called anti-nodes - remain in one place.






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






26. 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






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






28. The energy stored in a thermodynamic system.






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






30. An electromagnetic wave of very high frequency.






31. Energy associated with an object's position in space - or configuration in relation to other objects. This is a latent form of energy - where the amount of potential energy reflects the amount of energy that potentially could be released as kinetic e






32. A form of radioactivity where an excited atom releases a photon of gamma radiation - thereby returning to a lower energy state. The atomic structure itself does not change in the course of gamma radiation.






33. The phenomenon by which light traveling from a high n to a low n material will reflect from the optical interface if the incident angle is greater than the critical angle.






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






35. Given the trajectory of an object or system - the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force - the center of mass is the poin






36. A unit vector is a vector with length 1.






37. The center of a mirror or lens.






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






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. A frequency - f - defined as the number of revolutions a rigid body makes in a given time interval. It is a scalar quantity commonly denoted in units of Hertz (Hz) or s-1.






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






42. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.






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






44. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.






45. The lowest theoretical temperature a material can have - where the molecules that make up the material have no kinetic energy. Absolute zero is reached at 0 K or -273º C.






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






47. 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.






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






49. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.






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