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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 unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.






2. Energy associated with an object's position in space - or configuration in relation to other objects. This is a latent form of energy - where the amount of potential energy reflects the amount of energy that potentially could be released as kinetic e






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






4. 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






5. 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.






6. The amplification of one wave by another - identical wave of the same sign. Two constructively interfering waves are said to be "in phase."






7. An object cannot be cooled to absolute zero.






8. The standing wave with the lowest frequency that is supported by a string with both ends tied down is called the fundamental - or resonance - of the string. The wavelength of the fundamental is twice the length of the string - .






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 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.






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






12. 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.






13. 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.






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






15. The force transmitted along a rope or cable.






16. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.






17. 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.






18. The amount of heat necessary to transform a liquid at a given temperature into a gas of the same temperature - or the amount of heat needed to be taken away from a gas of a given temperature to transform it into a liquid of the same temperature.






19. 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.






20. The time it takes a system to pass through one cycle of its repetitive motion. The period - T - is the inverse of the motion's frequency - f = 1/T.






21. The effect of force on rotational motion.






22. The amount of heat necessary to transform a solid at a given temperature into a liquid of the same temperature - or the amount of heat needed to be removed from a liquid of a given temperature to transform it into a solid of the same temperature.






23. A rigid body's resistance to being rotated. The moment of inertia for a single particle is MR2 - where M is the mass of the rigid body and R is the distance to the rotation axis. For rigid bodies - calculating the moment of inertia is more complicate






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






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

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26. Heat transfer via the mass movement of molecules.






27. The bending of light as it passes from one medium to another. Light refracts toward the normal when going from a less dense medium into a denser medium and away from the normal when going from a denser medium into a less dense medium.






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






29. The number of hydrogen atoms in one gram of hydrogen - equal to . When counting the number of molecules in a gas - it is often convenient to count them in moles.






30. 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.






31. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .

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32. The energy associated with the configuration of bodies attracted to each other by the gravitational force. It is a measure of the amount of work necessary to get the two bodies from a chosen point of reference to their present position. This point of






33. 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.






34. 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.






35. A small particle-like bundle of electromagnetic radiation.






36. Two oscillators that have the same frequency and amplitude - but reach their maximum displacements at different times - are said to have different phases. Similarly - two waves are in phase if their crests and troughs line up exactly - and they are o






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






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






39. A collision in which both kinetic energy and momentum are conserved.






40. 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.






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






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






43. 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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44. 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.






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






46. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.






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






48. 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






49. A scale for measuring temperature - defined such that 0K is the lowest theoretical temperature a material can have. 273K = 0ºC.






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

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