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






3. 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 - .






4. 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






5. A unit vector is a vector with length 1.






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






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






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






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






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






11. Heat transfer via the mass movement of molecules.






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

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






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






15. 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.






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. 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.






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






19. A constant in the numerator of a formula.






20. If a line is drawn from the sun to the planet - then the area swept out by this line in a given time interval is constant.

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21. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.






22. 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






23. The cosine of an angle in a right triangle is equal to the length of the side adjacent to the angle divided by the length of the hypotenuse.






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






25. The model of the atom according to which negatively charged electrons orbit a positively charged nucleus. This model was developed by Ernest Rutherford in light of the results from his gold foil experiment.






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






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






28. When objects collide - each object feels a force for a short amount of time. This force imparts an impulse - or changes the momentum of each of the colliding objects. The momentum of a system is conserved in all kinds of collisions. Kinetic energy is






29. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.






30. The net change - - in a point's angular position - . It is a scalar quantity.






31. A negatively charged particle that orbits the nucleus of the atom.






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






33. A vector quantity defined as the product of the force acting on a body multiplied by the time interval over which the force is exerted.






34. 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






35. 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.






36. A push or a pull that causes an object to accelerate.






37. The state of a nonrotating object upon whom the net torque acting is zero.






38. 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.






39. 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.






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






41. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.






42. The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction - fission or fusion is rapidly transferred to a large number of atoms - releasing tremendous amounts of ene






43. 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






44. The property by which a changing current in one coil of wire induces an emf in another.






45. 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






46. Essentially a restatement of energy conservation - it states that the change in the internal energy of a system is equal to the heat added plus the work done on the system.






47. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.






48. 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).






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






50. 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.







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