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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. Relates the angle of incidence to the angle of refraction: .

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2. 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






3. The effect of force on rotational motion.






4. 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.






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






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






7. Objects that experience oscillatory or simple harmonic motion when distorted. Their motion is described by Hooke's Law.






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






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






10. 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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11. The tendency of an object to remain at a constant velocity - or its resistance to being accelerated. Newton's First Law is alternatively called the Law of Inertia because it describes this tendency.






12. Also called a diverging lens - a lens that is thinner in the middle than at the edges. Concave lenses refract light away from a focal point.






13. 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






14. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.






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






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






17. 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.






18. The name of an electron released from the surface of a metal due to the photoelectric effect.






19. A form of vector multiplication - where two vectors are multiplied to produce a scalar. The dot product of two vectors - A and B - is expressed by the equation A · B = AB cos .






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






22. The constant of proportionality in Newton's Law of Gravitation. It reflects the proportion of the gravitational force and - the product of two particles' masses divided by the square of the bodies' separation. N · m2/kg2.






23. 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






24. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.






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






26. The gravitational force exerted on a given mass.






27. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."






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






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






30. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.






31. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.






32. 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.






33. A constant in the numerator of a formula.






34. The disorder of a system.






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






36. An electromagnetic wave of very high frequency.






37. A property common to both vectors and scalars. In the graphical representation of a vector - the vector's magnitude is equal to the length of the arrow.






38. The unit of magnetic flux - equal to one T · m2.






39. 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.






40. The path of each planet around the sun is an ellipse with the sun at one focus.

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41. In an interference or diffraction pattern - the places where there is the most light.






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






43. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.






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






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






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






47. 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.






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






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






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







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