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






2. 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.






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






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






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






6. 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






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






8. 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






9. 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.






10. A collision in which momentum is conserved but kinetic energy is not.






11. 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.






12. 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 -






13. The index of refraction n = c/v of a substance characterizes the speed of light in that substance - v. It also characterizes - by way of Snell's Law - the angle at which light refracts in that substance.






14. 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.






15. 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.






16. The ray of light that is reflected from a mirror or other reflecting surface.






17. 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.






18. 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.






19. A constant in the numerator of a formula.






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






21. The disorder of a system.






22. The force transmitted along a rope or cable.






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






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






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






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






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

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






29. In the graphical representation of vectors - the tip of the arrow is the pointy end.






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






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






32. A measure of the average kinetic energy of the molecules in a system. Temperature is related to heat by the specific heat of a given substance.






33. Indicates how "bouncy" or "stiff" a spring is. More specifically - the spring constant - k - is the constant of proportionality between the restoring force exerted by the spring - and the spring's displacement from equilibrium. The greater the value






34. An image created by a mirror or lens in such a way that light does not actually come from where the image appears to be.






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






36. 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






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






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. The lowest theoretical temperature a material can have - where the molecules that make up the material have no kinetic energy. Absolute zero is reached at 0 K or -273º C.






40. In a right triangle - the tangent of a given angle is the length of the side opposite the angle divided by the length of the side adjacent to the triangle.






41. The dot product of the area and the magnetic field passing through it. Graphically - it is a measure of the number and length of magnetic field lines passing through that area. It is measured in Webers (Wb).






42. The amount of heat of a material required to raise the temperature of either one kilogram or one gram of that material by one degree Celsius. Different units may be used depending on whether specific heat is measured in s of grams or kilograms - and






43. The longest side of a right triangle - opposite to the right angle.






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






45. Heat transfer by molecular collisions.






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






47. 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.






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






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






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