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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. A coefficient that tells how much the volume of a solid will change when it is heated or cooled.






2. Linear momentum - p - commonly called "momentum" for short - is a vector quantity defined as the product of an object's mass - m - and its velocity - v.






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






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






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






6. 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.






7. The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction - fission or fusion is rapidly transferred to a large number of atoms - releasing tremendous amounts of ene






8. The energy stored in a thermodynamic system.






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






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






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






12. For two given media - the smallest angle of incidence at which total internal reflection occurs.






13. A transverse traveling wave created by the oscillations of an electric field and a magnetic field. Electromagnetic waves travel at the speed of light - m/s. Examples include microwaves - X rays - and visible light.






14. 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






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






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






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






18. The distance between the focal point and the vertex of a mirror or lens. For concave mirrors and convex lenses - this number is positive. For convex mirrors and concave lenses - this number is negative.






19. 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.






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






22. The standing wave with the lowest frequency that is supported by a string with both ends tied down is called the fundamental - or resonance - of the string. The wavelength of the fundamental is twice the length of the string - .






23. The bending of light as it passes from one medium to another. Light refracts toward the normal when going from a less dense medium into a denser medium and away from the normal when going from a denser medium into a less dense medium.






24. 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






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






26. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.






27. 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






28. The force transmitted along a rope or cable.






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






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






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






32. In radioactive substances - the number of nuclei that decay per second. Activity - A - will be larger in large samples of radioactive material - since there will be more nuclei.






33. 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






34. A transfer of thermal energy from one system to another.






35. The amount of heat necessary for a material undergoing sublimation to make a phase change from gas to solid or solid to gas - without a change in temperature.






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

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37. 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.






38. 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.






39. A pulley is a simple machine that consists of a rope that slides around a disk or block.






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






41. 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.






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






43. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.






44. A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.






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






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






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






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






49. 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






50. 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