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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 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.






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






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

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






5. In a right triangle - the sine of a given angle is the length of the side opposite the angle divided by the length of the hypotenuse.






6. A machine that operates by taking heat from a hot place - doing some work with that heat - and then exhausting the rest of the heat into a cool place. The internal combustion engine of a car is an example of a heat engine.






7. 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






8. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.






9. 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.






10. 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.






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






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






13. Done when energy is transferred by a force. The work done by a force F in displacing an object by s is W = F · s.






14. Represented by R = 8.31 J/mol · K - the universal gas constant fits into the ideal gas law so as to relate temperature to the average kinetic energy of gas molecules.






15. A vector quantity - - that reflects the change of angular displacement with time - and is typically given in units of rad/s. To find the direction of the angular velocity vector - take your right hand and curl your fingers along the particle or body






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






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






18. A mirror that is curved such that its center is closer to the viewer than the edges - such as a doorknob. Convex mirrors reflect light away from a focal point.






19. A rough approximation of how gases work - that is quite accurate in everyday conditions. According to the kinetic theory - gases are made up of tiny - round molecules that move about in accordance with Newton's Laws - and collide with one another and






20. The line that every particle in the rotating rigid body circles about.






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






22. 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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23. 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.






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






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






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






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






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






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






30. If two systems - A and B - are in thermal equilibrium and if B and C are also in thermal equilibrium - then systems A and C are necessarily in thermal equilibrium.






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

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32. The effect of force on rotational motion.






33. 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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34. 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






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






36. A vector quantity - L - that is the rotational analogue of linear momentum. For a single particle - the angular momentum is the cross product of the particle's displacement from the axis of rotation and the particle's linear momentum - . For a rigid






37. 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.






38. Life- The amount of time it takes for one-half of a radioactive sample to decay.






39. 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.






40. 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






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






42. The force between two surfaces moving relative to one another. The frictional force is parallel to the plane of contact between the two objects and in the opposite direction of the sliding object's motion.






43. When electromagnetic radiation shines upon a metal - the surface of the metal releases energized electrons. The way in which these electrons are released contradicts classical theories of electromagnetic radiation and supports the quantum view accord






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






45. The cosine of an angle in a right triangle is equal to the length of the side adjacent to the angle divided by the length of the hypotenuse.






46. 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.






47. 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.






48. An electromagnetic wave of very high frequency.






49. A mirror that is curved such that its center is farther from the viewer than the edges - such as the front of a spoon. Concave mirrors reflect light through a focal point.






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