NY Regents
June 2009, Part 2
21. A beam of electrons is directed into the electric field between two oppositely charged parallel plates, as shown in the diagram below.
The electrostatic force exerted on the electrons by the electric field is directed
(1) into the page
(2) out of the page
(3) toward the bottom of the page
(4) toward the top of the page
22. When two ring magnets are placed on a pencil, magnet A remains suspended above magnet B, as shown below.
Which statement describes the gravitational force and the magnetic force acting on magnet A due to magnet B?
(1) The gravitational force is attractive and the magnetic force is repulsive.
(2) The gravitational force is repulsive and the magnetic force is attractive.
(3) Both the gravitational force and the magnetic force are attractive.
(4) Both the gravitational force and the magnetic force are repulsive.
23. Which color of light has a wavelength of 5.0 × 10
–7
meter in air?
(1) blue
(2) green
(3) orange
(4) violet
24. Which type of wave requires a material medium through which to travel?
(1) sound
(2) radio
(3) television
(4) x-ray
25. A periodic wave is produced by a vibrating tuning fork. The amplitude of the wave would be greater if the tuning fork were
(1) struck more softly
(2) struck harder
(3) replaced by a lower frequency tuning fork
(4) replaced by a higher frequency tuning fork
26. The sound wave produced by a trumpet has a frequency of 440 hertz. What is the distance between successive compressions in this sound wave as it travels through air at STP?
(1) 1.5 × 10
–6
m
(2) 0.75 m
(3) 1.3 m
(4) 6.8 × 10
5
m
27. The diagram below represents a light ray striking the boundary between air and glass.
What would be the angle between this light ray and its reflected ray?
(1) 30.°
(2) 60.°
(3) 120.°
(4) 150.°
28. In which way does blue light change as it travels from diamond into crown glass?
(1) Its frequency decreases.
(2) Its frequency increases.
(3) Its speed decreases.
(4) Its speed increases.
29. The diagram below shows two pulses approaching each other in a uniform medium.
Which diagram best represents the superposition of the two pulses?
30. Sound waves strike a glass and cause it to shatter. This phenomenon illustrates
(1) resonance
(2) refraction
(3) reflection
(4) diffraction
31. An alpha particle consists of two protons and two neutrons. What is the charge of an alpha particle?
(1) 1.25 × 10
19
C
(2) 2.00 C
(3) 6.40 × 10
–19
C
(4) 3.20 × 10
–19
C
32. An electron in the
c level
of a mercury atom returns to the
ground state
. Which photon energy could not be emitted by the atom during this process?
(1) 0.22 eV
(2) 4.64 eV
(3) 4.86 eV
(4) 5.43 eV
33. Which phenomenon provides evidence that light has a wave nature?
(1) emission of light from an energy-level transition in a hydrogen atom
(2) diffraction of light passing through a narrow opening
(3) absorption of light by a black sheet of paper
(4) reflection of light from a mirror
34. When Earth and the Moon are separated by a distance of 3.84 × 10
8
meters, the magnitude of the gravitational force of attraction between them is 2.0 × 10
20
newtons. What would be the magnitude of this gravitational force of attraction if Earth and the Moon were separated by a distance of 1.92 × 10
8
meters?
(1) 5.0 × 10
19
N
(2) 2.0 × 10
20
N
(3) 4.0 × 10
20
N
(4) 8.0 × 10
20
N
35. The particles in a nucleus are held together primarily by the
(1) strong force
(2) gravitational force
(3) electrostatic force
(4) magnetic force
36. The work done in lifting an apple one meter near Earth’s surface is approximately
(1) 1 J
(2) 0.01 J
(3) 100 J
(4) 1000 J
Refer to the following information for the next two questions.
Base your answers to questions 37 and 38 on the graph below, which represents the motion of a car during a 6.0-second time interval.
37. What is the acceleration of the car at t = 5.0 seconds?
(1) 0.0 m/s2
(2) 2.0 m/s2
(3) 2.5 m/s2
(4) 10. m/s2
38. What is the total distance traveled by the car during this 6.0-second interval?
(1) 10. m
(2) 20. m
(3) 40. m
(4) 60. m
39. A person weighing 785 newtons on the surface of Earth would weigh 298 newtons on the surface of Mars. What is the magnitude of the gravitational field strength on the surface of Mars?
(1) 2.63 N/kg
(2) 3.72 N/kg
(3) 6.09 N/kg
(4) 9.81 N/kg
40. A motorcycle being driven on a dirt path hits a rock. Its 60.-kilogram cyclist is projected over the handlebars at 20. meters per second into a haystack. If the cyclist is brought to rest in 0.50 second, the magnitude of the average force exerted on the cyclist by the haystack is
(1) 6.0 × 10
1
N
(2) 5.9 × 10
2
N
(3) 1.2 × 10
3
N
(4) 2.4 × 10
3
N
NY State Library System
Copyright © 1996--2024
All rights reserved.
Used with
permission
.
PhysicsLAB
PDF conversion
Copyright © 1997--2024
Catharine H. Colwell
All rights reserved.