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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 separation of different color light via refraction.






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






4. 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.






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






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






7. Light such that all of the associated waves have the same wavelength and are in phase.






8. 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.






9. The motion of a body in a circular path with constant speed.






10. 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.






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






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






13. The study of the properties of visible light - i.e. - the portion of the electromagnetic spectrum with wavelengths between 360 and 780 nm (1 nm = m/s).






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






15. 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.






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






17. A measure of force per unit area. Pressure is measured in N/m2 or Pa.






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

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19. A transfer of thermal energy. We don't speak about systems "having" heat - but about their "transferring" heat - much in the way that dynamical systems don't "have" work - but rather "do" work.






20. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.






21. 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.






22. The force of gravity - F - between two particles of mass and - separated by a distance r - has a magnitude of - where G is the gravitational constant. The force is directed along the line joining the two particles.

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






24. Defined as the rate at which work is done - or the rate at which energy is transformed. P is measured in joules per second (J/s) - or watts (W).






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






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






27. Heat transfer via electromagnetic waves.






28. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.






29. A constant in the numerator of a formula.






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






31. The center of a mirror or lens.






32. A wavelength - given by = h/mv - which is associated with matter. Louis de Broglie proposed the idea that matter could be treated as waves in 1923 and applied this theory successfully to small particles like electrons.






33. 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.






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






35. A nuclear reaction that takes place only at very high temperatures. Two light atoms - often hydrogen - fuse together to form a larger single atom - releasing a vast amount of energy in the process.






36. A force caused by the roughness of two materials in contact - deformations in the materials - and a molecular attraction between the materials. Frictional forces are always parallel to the plane of contact between two surfaces and opposite the direct






37. 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






38. A vector of magnitude 1 along one of the coordinate axes. Generally - we take the basis vectors to be and - the vectors of length 1 along the x- and y-axes - respectively.






39. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.






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






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






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






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






44. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.






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






46. 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






47. 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.






48. 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.






49. The series of standing waves supported by a string with both ends tied down. The first member of the series - called the fundamental - has two nodes at the ends and one anti-node in the middle. The higher harmonics are generated by placing an integra






50. States that the net work done on an object is equal to the object's change in kinetic energy.