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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 means of defining the direction of the cross product vector. To define the direction of the vector - position your right hand so that your fingers point in the direction of A - and then curl them around so that they point in the direction of B. Th






2. 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.






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






4. 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.






5. An object cannot be cooled to absolute zero.






6. The two shorter sides of a right triangle that meet at the right angle.






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






8. The separation of different color light via refraction.






9. A wave on a string that is tied to a pole at one end will reflect back toward its source - producing a wave that is the mirror-image of the original and which travels in the opposite direction.






10. To every action - there is an equal and opposite reaction. If an object A exerts a force on another object B - B will exert on A a force equal in magnitude and opposite in direction to the force exerted by A.

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11. The force between two surfaces that are not moving relative to one another. The force of static friction is parallel to the plane of contact between the two objects and resists the force pushing or pulling on the object.






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






13. 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






14. When an object is held in circular motion about a massive body - like a planet or a sun - due to the force of gravity - that object is said to be in orbit. Objects in orbit are in perpetual free fall - and so are therefore weightless.






15. An equation - PV = nRT - that relates the pressure - volume - temperature - and quantity of an ideal gas. An ideal gas is one that obeys the approximations laid out in the kinetic theory of gases.






16. 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






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






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






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






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






21. The coefficient of static friction - for two materials is the constant of proportionality between the normal force and the maximum force of static friction. It is always a number between zero and one.






22. When a light ray strikes a surface - the angle of incidence is the angle between the incident ray and the normal.






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






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






25. 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.






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






27. 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.






28. The energy of a particle moving in space. It is defined in s of a particle's mass - m - and velocity - v - as (1/2)mv2.






29. A logorithmic unit for measuring the volume of sound - which is the square of the amplitude of sound waves.






30. A vector quantity - equal to the rate of change of the angular velocity vector with time. It is typically given in units of rad/s2.






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






32. 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






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






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






35. The experience of being in free fall. If you are in a satellite - elevator - or other free-falling object - then you have a weight of zero Newtons relative to that object.






36. 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.






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






38. An image created by a mirror or lens in such a way that light does actually come from where the image appears to be. If you place a screen in front of a real image - the image will be projected onto the screen.






39. 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






40. 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.






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






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






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






44. Any vector can be expressed as the sum of two mutually perpendicular component vectors. Usually - but not always - these components are multiples of the basis vectors - and ; that is - vectors along the x-axis and y-axis. We define these two vectors






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






46. An area of high air pressure that acts as the wave crest for sound waves. The spacing between successive compressions is the wavelength of sound - and the number of successive areas of compression that arrive at the ear per second is the frequency -






47. A process that aligns a wave of light to oscillate in one dimension rather than two.






48. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.






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






50. 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