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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 amount of heat needed to raise the temperature of one gram of water by one degree Celsius. 1 cal = 4.19 J.






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






3. 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 -






4. The effect of force on rotational motion.






5. 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.






6. The position - of an object according to a co-ordinate system measured in s of the angle of the object from a certain origin axis. Conventionally - this origin axis is the positive x-axis.






7. With spherical mirrors - the radius of the sphere of which the mirror is a part.






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






9. The cancellation of one wave by another wave that is exactly out of phase with the first. Despite the dramatic name of this phenomenon - nothing is "destroyed" by this interference—the two waves emerge intact once they have passed each other.






10. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.






11. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.






12. A sheet - film - or screen with a pattern of equally spaced slits. Typically the width of the slits and space between them is chosen to generate a particular diffraction pattern.






13. Heat transfer by molecular collisions.






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






15. 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






16. A particle - which consists of two protons and two neutrons. It is identical to the nucleus of a helium atom and is ejected by heavy particles undergoing alpha decay.






17. 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






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






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






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






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






22. 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.






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






24. An experiment in 1879 that showed that the speed of light is constant to all observers. Einstein used the results of this experiment as support for his theory of special relativity.






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






26. The property of a vector that distinguishes it from a scalar: while scalars have only a magnitude - vectors have both a magnitude and a direction. When graphing vectors in the xy-coordinate space - direction is usually given by the angle measured cou






27. The amount of error that's possible in a given measurement.






28. A principle derived by Werner Heisenberg in 1927 that tells us that we can never know both the position and the momentum of a particle at any given time.






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






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






31. A collision in which the colliding particles stick together.






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






33. 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.






34. A nuclear reaction in which a high-energy neutron bombards a heavy - unstable atomic nucleus - causing it to split into two smaller nuclei - and releasing some neutrons and a vast amount of energy at the same time






35. 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.






36. 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.






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






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






39. 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.






40. F = ma. The net force - F - acting on an object causes the object to accelerate - a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely proportional to the mass - m - of the object.

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41. 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






42. The gravitational force exerted on a given mass.






43. 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.






44. 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.






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






46. A number - Z - associated with the number of protons in the nucleus of an atom. Every element can be defined in s of its atomic number - since every atom of a given element has the same number of protons.






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






48. 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.






49. A vector quantity - commonly denoted by the vector s - which reflects an object's change in spatial position. The displacement vector points from the object's starting position to the object's current position in space. If an object is moved from poi






50. Also called a converging lens - a lens that is thicker in the middle than at the edges. Convex lenses refract light through a focal point.







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