question
stringclasses 13
values | choices
sequence | answer
class label 4
classes |
|---|---|---|
De Broglie hypothesized that the linear momentum and wavelength of a free massive particle are related by which of the following constants? | [
"Planck鈥檚 constant",
"Boltzmann鈥檚 constant",
"The Rydberg constant",
"The speed of light"
] | 0A
|
The coefficient of static friction between a small coin and the surface of a turntable is 0.30. The turntable rotates at 33.3 revolutions per minute. What is the maximum distance from the center of the turntable at which the coin will not slide? | [
"0.024 m",
"0.048 m",
"0.121 m",
"0.242 m"
] | 3D
|
Electromagnetic radiation provides a means to probe aspects of the physical universe. Which of the following statements regarding radiation spectra is NOT correct? | [
"Lines in the infrared, visible, and ultraviolet regions of the spectrum reveal primarily the nuclear structure of the sample.",
"The wavelengths identified in an absorption spectrum of an element are among those in its emission spectrum.",
"Absorption spectra can be used to determine which elements are present in distant stars.",
"Spectral analysis can be used to identify the composition of galactic dust."
] | 0A
|
One end of a horizontal, massless spring is attached to a wall. A mass of 0.30 kg is attached to the other end of the spring and rests on a table. The mass is displaced 0.030 m from its equilibrium position and released. It has a speed of 0.040 m/s as it passes through its equilibrium position. In the absence of friction, what is the total mechanical energy of the system? | [
"0.24 mJ",
"0.38 mJ",
"0.48 mJ",
"0.75 mJ"
] | 0A
|
Which of the following ions CANNOT be used as a dopant in germanium to make an n-type semiconductor? | [
"As",
"P",
"Sb",
"B"
] | 3D
|
An astronomer observes a very small moon orbiting a planet and measures the moon鈥檚 minimum and maximum distances from the planet鈥檚 center and the moon鈥檚 maximum orbital speed. Which of the following CANNOT be calculated from these measurements? | [
"Mass of the moon",
"Mass of the planet",
"Minimum speed of the moon",
"Period of the orbit"
] | 0A
|
A proton moves in the +z-direction after being accelerated from rest through a potential difference V. The proton then passes through a region with a uniform electric field E in the +x-direction and a uniform magnetic field B in the +y-direction, but the proton鈥檚 trajectory is not affected. If the experiment were repeated using a potential difference of 2V, the proton would then be | [
"deflected in the +x-direction",
"deflected in the -x-direction",
"deflected in the +y-direction",
"deflected in the -y-direction"
] | 1B
|
The negative muon, mu^-, has properties most similar to which of the following? | [
"Electron",
"Meson",
"Photon",
"Boson"
] | 0A
|
A uniform solid disk starts from rest and rolls down an inclined plane without slipping. After some time, what fraction of the disk鈥檚 total kinetic energy is rotational kinetic energy? | [
"1/4",
"1/3",
"1/2",
"2/3"
] | 1B
|
A 10 kg box slides horizontally without friction at a speed of 1 m/s. At one point, a constant force is applied to the box in the direction of its motion. The box travels 5 m with the constant force applied. The force is then removed, leaving the box with a speed of 2 m/s. Which of the following gives the magnitude of the applied force? | [
"1 N",
"2 N",
"3 N",
"4 N"
] | 2C
|
Two spaceships approach Earth with equal speeds, as measured by an observer on Earth, but from opposite directions. A meterstick on one spaceship is measured to be 60 cm long by an occupant of the other spaceship. What is the speed of each spaceship, as measured by the observer on Earth? | [
"0.4c",
"0.5c",
"0.6c",
"0.7c"
] | 1B
|
A 10 kg box slides horizontally without friction at a speed of 1 m/s. At one point, a constant force is applied to the box in the direction of its motion. The box travels 5 m with the constant force applied. The force is then removed, leaving the box with a speed of 2 m/s. Which of the following gives the magnitude of the applied force? | [
"1 N",
"2 N",
"3 N",
"4 N"
] | 2C
|
Consider an electron in the n = 4, l = 1 state in hydrogen. Which of the following final states can NOT be reached by an allowed transition? | [
"n = 3, l = 2",
"n = 3, l = 1",
"n = 3, l = 0",
"n = 2, l = 0"
] | 1B
|
Which of the following lasers utilizes transitions that involve the energy levels of free atoms? | [
"Diode laser",
"Dye laser",
"Free-electron laser",
"Gas laser"
] | 3D
|
A uniform solid disk starts from rest and rolls down an inclined plane without slipping. After some time, what fraction of the disk鈥檚 total kinetic energy is rotational kinetic energy? | [
"1/4",
"1/3",
"1/2",
"2/3"
] | 1B
|
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