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Test your basic knowledge |
SAT Subject Test: hysics
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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. The points midway between nodes on a standing wave - where the oscillations are largest.
Law of conservation of energy
Maxima
Refraction
Antinode
2. The line perpendicular to a surface. There is only one normal for any given surface.
Normal
Rotational motion
Center of mass
Mass
3. A neutrally charged particle that - along with protons - constitutes the nucleus of an atom.
Neutron
Superposition
Calorie
Potential energy
4. For an oscillating spring - the restoring force exerted by the spring is directly proportional to the displacement. That is - the more the spring is displaced - the stronger the force that will pull toward the equilibrium position. This law is expres
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5. A process that aligns a wave of light to oscillate in one dimension rather than two.
Minima
Polarization
Uniform circular motion
Standing wave
6. The amount of heat necessary to transform a liquid at a given temperature into a gas of the same temperature - or the amount of heat needed to be taken away from a gas of a given temperature to transform it into a liquid of the same temperature.
Mass number
Latent heat of vaporization
Charles's Law
Electron
7. Heat transfer via electromagnetic waves.
Rigid body
Medium
Radiation
Radius of curvature
8. A scalar quantity that tells us how fast an object is moving. It measures the rate of change in distance over time. Speed is to be contrasted with velocity in that there is no direction associated with speed.
Impulse
Electric generator
Speed
Decay constant
9. 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.
Energy
Standing wave
Index of refraction
Meson
10. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Third Law of Thermodynamics
Cycle
Efficiency
Right-hand rule
11. 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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12. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Centripetal force
Wavelength
Principal axis
Reflected ray
13. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Hertz (Hz)
Equilibrium position
Beta decay
Frictional force
14. 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.
Decibel
Reflect
Coefficient of linear expansion
Weight
15. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.
Proton
Sublimation
Second Law of Thermodynamics
Kinetic theory of gases
16. 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.
Gravitational constant
Faraday's Law
Harmonic series
Meson
17. When an object is held in circular motion about a massive body - like a planet or a sun - due to the force of gravity - that object is said to be in orbit. Objects in orbit are in perpetual free fall - and so are therefore weightless.
Orbit
Potential energy
Electronvolt
Photon
18. When two waves of slightly different frequencies interfere with one another - they produce a "beating" interference pattern that alternates between constructive (in-phase) and destructive (out-of-phase). In the case of sound waves - this sort of inte
Coefficient of kinetic friction
Real image
Equilibrium position
Beats
19. The amount of heat necessary to transform a solid at a given temperature into a liquid of the same temperature - or the amount of heat needed to be removed from a liquid of a given temperature to transform it into a solid of the same temperature.
Beta particle
Latent heat of fusion
Half
Concave lens
20. A vector quantity defined as the rate of change of the displacement vector with time. It is to be contrasted with speed - which is a scalar quantity for which no direction is specified.
Spring
Velocity
Beta decay
Static friction
21. The amount heat necessary to cause a substance to undergo a phase transition.
Gamma ray
Real image
Internal energy
Latent heat of transformation
22. States that the net work done on an object is equal to the object's change in kinetic energy.
Spring constant
Traveling waves
Work-energy theorem
Radius of curvature
23. A transfer of thermal energy from one system to another.
Heat transfer
Radioactivity
Angle of incidence
Spectroscope
24. The amount of heat needed to raise the temperature of one gram of water by one degree Celsius. 1 cal = 4.19 J.
Spectroscope
Calorie
Gold foil experiment
Distance
25. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Scalar
De Broglie wavelength
Translational kinetic energy
Neutrino
26. 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.
Latent heat of sublimation
Charles's Law
Cross product
Frequency
27. Relates the angle of incidence to the angle of refraction: .
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28. When a solid - liquid - or gas changes into another phase of matter.
Energy
Phase change
Thermal energy
Dot product
29. 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.
Equilibrium
Rutherford nuclear model
Crest
Ideal gas law
30. A reference frame in which Newton's First Law is true. Two inertial reference frames move at a constant velocity relative to one another. According to the first postulate of Einstein's theory of special relativity - the laws of physics are the same i
Radioactive decay
Kelvin
Conservation of momentum
Inertial reference frame
31. A collision in which both kinetic energy and momentum are conserved.
Elastic collision
Nucleus
First Law of Thermodynamics
Margin of error
32. The phenomenon of light bouncing off a surface - such as a mirror.
Reflection
Component
Mole
Scalar
33. Given the trajectory of an object or system - the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force - the center of mass is the poin
Standing wave
Kinetic energy
Equilibrium position
Center of mass
34. The separation of different color light via refraction.
Nuclear fusion
Acceleration
Dispersion
Work
35. For a gas held at constant pressure - temperature and volume are directly proportional.
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36. Two quantities are directly proportional if an increase in one results in a proportional increase in the other - and a decrease in one results in a proportional decrease in the other. In a formula defining a certain quantity - those quantities to whi
Directly proportional
Tail
Michelson-Morley experiment
Phase change
37. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Convection
Charles's Law
Longitudinal waves
Ground state
38. 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.
Law of conservation of energy
Isolated system
Collision
Chain reaction
39. A constant - - not to be confused with wavelength - that defines the speed at which a radioactive element undergoes decay. The greater is - the faster the element decays.
Lenz's Law
Beta particle
Ground state
Decay constant
40. A collision in which momentum is conserved but kinetic energy is not.
Calorie
Heat
Decay constant
Inelastic collision
41. 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
Quark
Coefficient of volume expansion
Normal force
Focal length
42. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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43. The mass number - A - is the sum of the number of protons and neutrons in a nucleus. It is very close to the weight of that nucleus in atomic mass units.
Coefficient of volume expansion
Neutrino
Mass number
Standing wave
44. 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.
Focal length
Thermal equilibrium
Crest
Weightlessness
45. Heat transfer via the mass movement of molecules.
Electronvolt
Convection
Coefficient of static friction
Vector
46. Essentially a restatement of energy conservation - it states that the change in the internal energy of a system is equal to the heat added plus the work done on the system.
Electromagnetic spectrum
First Law of Thermodynamics
Directly proportional
Elastic collision
47. In reference to oscillation - amplitude is the maximum displacement of the oscillator from its equilibrium position. Amplitude tells how far an oscillator is swinging back and forth. In periodic motion - amplitude is the maximum displacement in each
Total internal reflection
Convex mirror
Virtual image
Amplitude
48. The angle between a reflected ray and the normal.
Law of conservation of energy
Angle of reflection
Equilibrium
Radius of curvature
49. 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.
Magnitude
Isotope
Pendulum
Minima
50. 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
Antinode
Angular velocity
Inversely proportional
Thermal equilibrium
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