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Test your basic knowledge |
SAT Subject Test: hysics
Start Test
Study First
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. A principle derived by Werner Heisenberg in 1927 that tells us that we can never know both the position and the momentum of a particle at any given time.
Uncertainty principle
Photoelectric effect
Electronvolt
Mass defect
2. The energy stored in a thermodynamic system.
Internal energy
Alpha decay
Inversely proportional
Transformer
3. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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4. The points midway between nodes on a standing wave - where the oscillations are largest.
Photon
Coefficient of static friction
Antinode
Kinetic energy
5. The index of refraction n = c/v of a substance characterizes the speed of light in that substance - v. It also characterizes - by way of Snell's Law - the angle at which light refracts in that substance.
Index of refraction
Heat transfer
Mutual Induction
Cross product
6. The coefficient of kinetic friction - - for two materials is the constant of proportionality between the normal force and the force of kinetic friction. It is always a number between zero and one.
Sine
Sublimation
Mass number
Coefficient of kinetic friction
7. 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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8. 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.
Electromagnetic wave
Translational kinetic energy
Dot product
Inversely proportional
9. A transfer of thermal energy from one system to another.
Heat transfer
Equilibrium position
Gamma decay
Significant digits
10. 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.
Refraction
Tail
Principal axis
Temperature
11. A transverse traveling wave created by the oscillations of an electric field and a magnetic field. Electromagnetic waves travel at the speed of light - m/s. Examples include microwaves - X rays - and visible light.
Electromagnetic wave
Reflected ray
Wave
Tension force
12. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Maxima
Virtual image
System
Quark
13. The reaction force of the ground - a table - etc. - when an object is placed upon it. The normal force is a direct consequence of Newton's Third Law: when an object is placed on the ground - the ground pushes back with the same force that it is pushe
Normal force
Velocity
Radius of curvature
Half
14. Done when energy is transferred by a force. The work done by a force F in displacing an object by s is W = F · s.
Work
Virtual image
Decibel
Gamma decay
15. The separation of different color light via refraction.
Photon
Margin of error
Newton
Dispersion
16. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Translational motion
Weak nuclear force
Photoelectron
Angular momentum
17. The two shorter sides of a right triangle that meet at the right angle.
Lenz's Law
Legs
Vector
Angular period
18. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Activity
Beats
Mutual Induction
Radius of curvature
19. In a right triangle - the sine of a given angle is the length of the side opposite the angle divided by the length of the hypotenuse.
Sine
Refracted ray
Convex mirror
Translational kinetic energy
20. The force transmitted along a rope or cable.
Uncertainty principle
Radius of curvature
Tension force
Threshold frequency
21. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Critical angle
Focal point
Electric generator
Hooke's Law
22. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.
Potential energy
Wave
Pendulum
Neutrino
23. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Conservation of momentum
Basis vector
Newton's First Law
Work function
24. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Gold foil experiment
First Law of Thermodynamics
Speed
Celsius
25. The substance that is displaced as a wave propagates through it. Air is the medium for sound waves - the string is the medium of transverse waves on a string - and water is the medium for ocean waves. Note that even if the waves in a given medium tra
Medium
Transverse waves
Newton's First Law
Electromagnetic induction
26. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Law of conservation of energy
Polarization
Entropy
Reflect
27. 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.
Heat engine
Potential energy
Entropy
Kinetic theory of gases
28. Waves that oscillate in the same direction as the propagation of the wave. Sound is carried by longitudinal waves - since the air molecules move back and forth in the same direction the sound travels.
Longitudinal waves
Photon
Alpha particle
Angle of incidence
29. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Potential energy
Constructive interference
Center of curvature
Proton
30. 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.
Radiation
Rutherford nuclear model
Legs
Sound
31. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Convex lens
Cross product
Wavelength
Pendulum
32. The ratio of the size of the image produced by a mirror or lens to the size of the original object. This number is negative if the image is upside-down.
First Law of Thermodynamics
Magnification
Kinematics
Weak nuclear force
33. 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.
Weak nuclear force
Magnitude
Loudness
Mole
34. A form of radioactivity where an excited atom releases a photon of gamma radiation - thereby returning to a lower energy state. The atomic structure itself does not change in the course of gamma radiation.
Boyle's Law
Gamma decay
Tangent
Sound
35. The property of a vector that distinguishes it from a scalar: while scalars have only a magnitude - vectors have both a magnitude and a direction. When graphing vectors in the xy-coordinate space - direction is usually given by the angle measured cou
Direction
Rarefaction
Fundamental
Meson
36. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Rotational motion
Mass defect
Crest
Newton's First Law
37. A process that aligns a wave of light to oscillate in one dimension rather than two.
Dynamics
Polarization
Energy
Basis vector
38. The constant of proportionality in Newton's Law of Gravitation. It reflects the proportion of the gravitational force and - the product of two particles' masses divided by the square of the bodies' separation. N · m2/kg2.
Superposition
Normal force
Gravitational constant
Normal
39. The energy of a particle rotating around an axis.
Heat
Rotational kinetic energy
Latent heat of transformation
Wave
40. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Centripetal force
Oscillation
Deposition
Orbit
41. A number - Z - associated with the number of protons in the nucleus of an atom. Every element can be defined in s of its atomic number - since every atom of a given element has the same number of protons.
Atomic number
Weber
Kinematic equations
Internal energy
42. Represented by R = 8.31 J/mol · K - the universal gas constant fits into the ideal gas law so as to relate temperature to the average kinetic energy of gas molecules.
Meson
Weightlessness
Isotope
Universal gas constant
43. Heat transfer by molecular collisions.
Concave mirror
Motional emf
Transformer
Conduction
44. An equation - PV = nRT - that relates the pressure - volume - temperature - and quantity of an ideal gas. An ideal gas is one that obeys the approximations laid out in the kinetic theory of gases.
Gravitational constant
Ideal gas law
Basis vector
Acceleration
45. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Newton's First Law
Threshold frequency
Dynamics
Half
46. A collision in which the colliding particles stick together.
Unit vector
Electromagnetic spectrum
Completely inelastic collision
Instantaneous velocity
47. The current induced in a circuit by a change in magnetic flux.
Threshold frequency
Destructive interference
Alpha particle
Induced current
48. The tendency of an object to remain at a constant velocity - or its resistance to being accelerated. Newton's First Law is alternatively called the Law of Inertia because it describes this tendency.
Rotational motion
Inertia
Destructive interference
Mole
49. In an interference or diffraction pattern - the places where there is the most light.
Longitudinal waves
Doppler shift
Maxima
Atom
50. An object is called radioactive if it undergoes radioactive decay.
Radioactivity
Reflected ray
Elastic collision
Angular period