PhysicsLAB NY Regents
June 2011, Part 2

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26. The graph below represents the displacement of a particle in a medium over a period of time.
The amplitude of the wave is
27. What  is  the  period  of  a  water  wave  if  4.0 complete waves pass a fixed point in 10. seconds?
28. The diagram below represents a periodic wave.
Which point on the wave is 90° out of phase with point P?
29. What is the wavelength of a 256-hertz sound wave in air at STP?
30. What is the minimum total energy released when an electron and its antiparticle (positron) annihilate each other?
31. Which statement correctly describes one characteristic of a sound wave?

32. A 256-hertz vibrating tuning fork is brought near a non-vibrating 256-hertz tuning fork. The second tuning fork begins to vibrate. Which phenomenon causes the non-vibrating tuning fork to begin to vibrate?
33. Astronauts traveling toward Earth in a fast-moving spacecraft receive a radio signal from an antenna on Earth. Compared to the frequency and wavelength of the radio signal emitted from the antenna, the radio signal received by the astronauts has a

34. On the atomic level, energy and matter exhibit the characteristics of

35. Which particles are not affected by the strong force?
36. What is the approximate diameter of an inflated basketball?
37. The graph below shows the relationship between the speed and elapsed time for an object falling freely from rest near the surface of a planet.
What is the total distance the object falls during the first 3.0 seconds?
38. A 75-kilogram hockey player is skating across the ice at a speed of 6.0 meters per second. What  is the magnitude of the average force required to stop the player in 0.65 second?
39. A child pulls a wagon at a constant velocity along a level sidewalk. The child does this by applying a 22-newton force to the wagon handle, which is inclined at 35° to the sidewalk as shown below.
What is the magnitude of the force of friction on the wagon?
40. The diagram below shows the arrangement of three small spheres, A, B, and C, having charges of 3q, q, and q, respectively. Spheres A and C are located distance r from sphere B.
Compared to the magnitude of the electrostatic force exerted by sphere B on sphere C, the magnitude of the electrostatic force exerted by sphere A on sphere C is
41. A space probe is launched into space from Earth’s surface. Which graph represents the relationship between the magnitude of the gravitational force exerted on Earth by the space probe and the distance between the space probe and the center of Earth?
42. Which graph represents the relationship between the gravitational potential energy (GPE) of an object near the surface of Earth and its height above the surface of Earth?
43. Two parallel metal plates are connected to a variable source of potential difference. When the potential difference of the source is increased, the magnitude of the electric field strength between the plates increases. The diagram below shows an electron located between the plates.
Which graph represents the relationship between the magnitude of the electrostatic force on the electron and the magnitude of the electric field strength between the plates?
44. The   diagram   below   represents   a   circuit consisting of two resistors connected to a source of potential difference.
What  is  the  current  through  the  20.-ohm resistor?
45. The diagram below shows the magnetic field lines between two magnetic poles, A and B.
Which statement describes the polarity of magnetic poles A and B?

46. The diagram below represents a transverse water wave propagating toward the left. A cork is floating on the water’s surface at point P.
In which direction will the cork move as the wave passes point P?

47. The diagram below shows a series of wave fronts approaching an opening in a barrier. Point P is located on the opposite side of the barrier.
The wave fronts reach point P as a result of
48. The diagram below represents a standing wave.
The number of nodes and antinodes shown in the diagram is

49. A deuterium nucleus consists of one proton and one neutron. The quark composition of a deuterium nucleus is

50. The diagram below shows two waves traveling in the same medium. Points A, B, C, and D are located along the rest position of the medium. The waves interfere to produce a resultant wave.
The superposition of the waves produces the greatest positive displacement of the medium from its rest position at point

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