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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. 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.
Energy
Index of refraction
Sublimation
Ideal gas law
2. 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.
Polarization
Mass number
Chain reaction
Universal gas constant
3. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Cycle
Electromagnetic wave
Specific heat
Dynamics
4. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Rotational kinetic energy
Superposition
Rarefaction
Tip
5. The time it takes a system to pass through one cycle of its repetitive motion. The period - T - is the inverse of the motion's frequency - f = 1/T.
Period
Coefficient of static friction
Coefficient of volume expansion
Gold foil experiment
6. The number of cycles executed by a system in one second. Frequency is the inverse of period - f = 1/T. Frequency is measured in hertz - Hz.
Kinetic friction
Frequency
Chain reaction
Conduction
7. The number of digits that have been accurately measured. When combining several measurements in a formula - the resulting calculation can only have as many significant digits as the measurement that has the smallest number of significant digits.
Significant digits
Newton's Third Law
Frequency
Sine
8. 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
Photoelectron
Planck's constant
Normal force
Electron
9. A transfer of thermal energy. We don't speak about systems "having" heat - but about their "transferring" heat - much in the way that dynamical systems don't "have" work - but rather "do" work.
Instantaneous velocity
Work-energy theorem
Rotational kinetic energy
Heat
10. A sheet - film - or screen with a pattern of equally spaced slits. Typically the width of the slits and space between them is chosen to generate a particular diffraction pattern.
Inversely proportional
Neutron number
Diffraction grating
Equilibrium
11. 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.
Tangent
Antinode
Destructive interference
Magnification
12. 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.
Convex mirror
Kinematic equations
Electromagnetic spectrum
Static friction
13. States that the net work done on an object is equal to the object's change in kinetic energy.
Weak nuclear force
Incident ray
Work-energy theorem
Unit vector
14. A small particle-like bundle of electromagnetic radiation.
Hooke's Law
Photon
Scalar
Faraday's Law
15. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Focal point
Radian
First Law of Thermodynamics
Concave lens
16. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Angular position
Kinematic equations
Angle of refraction
Strong nuclear force
17. In an interference or diffraction pattern - the places where there is the least light.
Free
Chain reaction
Medium
Minima
18. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Celsius
Tip
Proton
System
19. A system that no external net force acts upon. Objects within the system may exert forces upon one another - but they cannot receive any impulse from outside forces. Momentum is conserved in isolated systems.
First Law of Thermodynamics
Isolated system
Simple harmonic oscillator
Electron
20. Given the period - T - and semimajor axis - a - of a planet's orbit - the ratio is the same for every planet.
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21. A unit of measurement for energy on atomic levels. 1 eV = J.
Electronvolt
Margin of error
Constructive interference
Cosine
22. Kinematics is the study and description of the motion of objects.
Newton's Law of Universal Gravitation
Kinematics
Doppler shift
Torque
23. Two quantities are inversely proportional if an increase in one results in a proportional decrease in the other - and a decrease in one results in a proportional increase in the other. In a formula defining a certain quantity - those quantities to wh
Principal axis
Coherent light
Angle of refraction
Inversely proportional
24. 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.
Impulse
Threshold frequency
Amplitude
Focal length
25. Atoms of the same element may have different numbers of neutrons and therefore different masses. Atoms of the same element but with different numbers of neutrons are called isotopes of the same element.
Index of refraction
Rigid body
Isotope
Ground state
26. The state of a nonrotating object upon whom the net torque acting is zero.
Equilibrium
Amplitude
Compression
Gamma decay
27. An image created by a mirror or lens in such a way that light does actually come from where the image appears to be. If you place a screen in front of a real image - the image will be projected onto the screen.
Cycle
Rigid body
Pulley
Real image
28. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Gold foil experiment
Velocity
Neutron number
Alpha particle
29. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Focal point
Rotational motion
Superposition
Phase change
30. The net change - - in a point's angular position - . It is a scalar quantity.
Heat transfer
Nuclear fission
Angular displacement
Pendulum
31. Waves produced by a source that is moving with respect to the observer will seem to have a higher frequency and smaller wavelength if the motion is towards the observer - and a lower frequency and longer wavelength if the motion is away from the obse
Doppler shift
Joule
Nucleus
Newton's Third Law
32. 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.
Phase change
Virtual image
Coefficient of kinetic friction
Temperature
33. The coefficient of static friction - for two materials is the constant of proportionality between the normal force and the maximum force of static friction. It is always a number between zero and one.
Coefficient of static friction
Moment of inertia
Cosine
Ground state
34. The amount of heat necessary for a material undergoing sublimation to make a phase change from gas to solid or solid to gas - without a change in temperature.
Moment of inertia
Latent heat of sublimation
Kepler's First Law
Kepler's Second Law
35. A collision in which the colliding particles stick together.
Isotope
Kinetic energy
Right-hand rule
Completely inelastic collision
36. A model for the atom developed in 1913 by Niels Bohr. According to this model - the electrons orbiting a nucleus can only orbit at certain particular radii. Excited electrons may jump to a more distant radii and then return to their ground state - em
Antinode
Sound
Bohr atomic model
Newton's First Law
37. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Center of curvature
Normal
Centripetal force
Focal point
38. The process by which unstable nuclei spontaneously release particles and/or energy so as to come to a more stable arrangement. The most common forms of radioactive decay are alpha decay - beta decay - and gamma decay.
Radioactive decay
Latent heat of vaporization
Trough
Coefficient of kinetic friction
39. A vector quantity - or vector - is an object possessing - and fully described by - a magnitude and a direction. Graphically a vector is depicted as an arrow with its magnitude given by the length of the arrow and its direction given by where the arro
Vector
Inclined plane
Translational kinetic energy
Deposition
40. The points of maximum displacement along a wave. In traveling waves - the crests move in the direction of propagation of the wave. The crests of standing waves - also called anti-nodes - remain in one place.
Crest
Threshold frequency
Angular position
Diffraction
41. 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).
Gravitational constant
Kepler's First Law
Magnetic flux
Heat
42. States that the current induced in a circuit by a change in magnetic flux is in the direction that will oppose that change in flux. Using the right-hand rule - point your thumb in the opposite direction of the change in magnetic flux. The direction y
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43. Two oscillators that have the same frequency and amplitude - but reach their maximum displacements at different times - are said to have different phases. Similarly - two waves are in phase if their crests and troughs line up exactly - and they are o
Phase
Transverse waves
Newton's Third Law
Convection
44. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Instantaneous velocity
Melting point
Fundamental
Transverse waves
45. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Quark
Gold foil experiment
Maxima
Magnitude
46. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Medium
Electron
Significant digits
Diffraction
47. A rigid body's resistance to being rotated. The moment of inertia for a single particle is MR2 - where M is the mass of the rigid body and R is the distance to the rotation axis. For rigid bodies - calculating the moment of inertia is more complicate
Moment of inertia
Period
Mass defect
Spring
48. 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.
Neutron number
Reflect
Alpha particle
Elastic collision
49. 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
Basis vector
Photoelectric effect
Heat transfer
Radioactive decay
50. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Lenz's Law
Wave
Strong nuclear force
De Broglie wavelength