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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. There are a few versions of this law. One is that heat flows spontaneously from hot to cold - but not in the reverse direction. Another is that there is no such thing as a 100% efficient heat engine. A third states that the entropy - or disorder - of
Gamma decay
Second Law of Thermodynamics
Zeroth Law of Thermodynamics
Frequency
2. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Pulley
Kinetic energy
Alpha particle
Tip
3. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Orbit
Speed
Wave
Electromagnetic induction
4. 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.
Zeroth Law of Thermodynamics
Planck's constant
Neutrino
Tangent
5. The study of the properties of visible light - i.e. - the portion of the electromagnetic spectrum with wavelengths between 360 and 780 nm (1 nm = m/s).
Compression
Restoring force
Optics
Acceleration
6. For a gas held at constant pressure - temperature and volume are directly proportional.
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7. A transfer of thermal energy from one system to another.
Frictional force
Doppler shift
Heat transfer
Crest
8. A negatively charged particle that orbits the nucleus of the atom.
Isolated system
Unit vector
Electron
Induced current
9. 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
Momentum
Phase
Speed
Critical angle
10. The amount of error that's possible in a given measurement.
Angular frequency
Margin of error
Angle of incidence
Trough
11. The experience of being in free fall. If you are in a satellite - elevator - or other free-falling object - then you have a weight of zero Newtons relative to that object.
Alpha decay
Zeroth Law of Thermodynamics
Weightlessness
Displacement
12. The building blocks of all matter - atoms are made up of a nucleus consisting of protons and neutrons - and a number of electrons that orbit the nucleus. An electrically neutral atom has as many protons as it has electrons.
Basis vector
Atom
Work-energy theorem
Component
13. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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14. 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
Angular acceleration
Internal energy
Beats
Cross product
15. If two systems - A and B - are in thermal equilibrium and if B and C are also in thermal equilibrium - then systems A and C are necessarily in thermal equilibrium.
Charles's Law
Free
Zeroth Law of Thermodynamics
Uniform circular motion
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.
Neutrino
Gravitational constant
Angular position
Coefficient of static friction
17. 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
Latent heat of sublimation
Photoelectric effect
Half
Isotope
18. The position - of an object according to a co-ordinate system measured in s of the angle of the object from a certain origin axis. Conventionally - this origin axis is the positive x-axis.
Angular position
Legs
Work-energy theorem
Speed
19. The series of standing waves supported by a string with both ends tied down. The first member of the series - called the fundamental - has two nodes at the ends and one anti-node in the middle. The higher harmonics are generated by placing an integra
Half
Rarefaction
Dot product
Harmonic series
20. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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21. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Spectroscope
Conduction
Photoelectric effect
22. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Wave
Tip
Radian
Hypotenuse
23. The speed at which a wave crest or trough propagates. Note that this is not the speed at which the actual medium (like the stretched string or the air particles) moves.
Displacement
Spectroscope
Wave speed
Rigid body
24. 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.
Joule
Angle of refraction
Torque
Radioactive decay
25. F = ma. The net force - F - acting on an object causes the object to accelerate - a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely proportional to the mass - m - of the object.
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26. A device that breaks incoming light down into spectral rays - so that one can see the exact wavelength constituents of the light.
Spectroscope
Latent heat of sublimation
Angular displacement
Constant of proportionality
27. For a reflected light ray - . In other words - a ray of light reflects of a surface in the same plane as the incident ray and the normal - and at an angle to the normal that is equal to the angle between the incident ray and the normal.
Work-energy theorem
Tension force
Law of reflection
Cycle
28. Kinematics is the study and description of the motion of objects.
Weak nuclear force
Kinematics
Uniform circular motion
Conduction
29. Two materials are in thermal equilibrium if they are at the same temperature.
Reflection
Thermal equilibrium
Kepler's Third Law
Vector
30. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Mass defect
Mechanical energy
Dynamics
Vector
31. 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
Minima
Amplitude
Conservation of momentum
32. The distance between the focal point and the vertex of a mirror or lens. For concave mirrors and convex lenses - this number is positive. For convex mirrors and concave lenses - this number is negative.
Fundamental
Velocity
Convex lens
Focal length
33. A nuclear reaction that takes place only at very high temperatures. Two light atoms - often hydrogen - fuse together to form a larger single atom - releasing a vast amount of energy in the process.
Margin of error
Constant of proportionality
Nuclear fusion
Harmonic series
34. When objects collide - each object feels a force for a short amount of time. This force imparts an impulse - or changes the momentum of each of the colliding objects. The momentum of a system is conserved in all kinds of collisions. Kinetic energy is
Thermal energy
Bohr atomic model
Collision
Uniform circular motion
35. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.
Spring constant
Inversely proportional
Beta decay
Energy
36. The angle between a refracted ray and the line normal to the surface.
Angle of refraction
Radiation
Critical angle
Inertia
37. 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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38. Objects that experience oscillatory or simple harmonic motion when distorted. Their motion is described by Hooke's Law.
Coefficient of linear expansion
Spring
Momentum
Minima
39. A wavelength - given by = h/mv - which is associated with matter. Louis de Broglie proposed the idea that matter could be treated as waves in 1923 and applied this theory successfully to small particles like electrons.
Free
Concave lens
Rigid body
De Broglie wavelength
40. The net change - - in a point's angular position - . It is a scalar quantity.
Transformer
Angular displacement
Tangent
Threshold frequency
41. 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.
Latent heat of vaporization
Proton
Law of reflection
Loudness
42. States that the net work done on an object is equal to the object's change in kinetic energy.
Inelastic collision
Work-energy theorem
Reflected ray
Newton's Third Law
43. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Mass
Electromagnetic spectrum
Nuclear fusion
Inertia
44. 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.
Magnification
Transformer
Distance
Frequency
45. Indicates how "bouncy" or "stiff" a spring is. More specifically - the spring constant - k - is the constant of proportionality between the restoring force exerted by the spring - and the spring's displacement from equilibrium. The greater the value
Maxima
Radian
Spring constant
Angle of incidence
46. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Mass defect
Snell's Law
Electromagnetic spectrum
Quark
47. The phenomenon of light bouncing off a surface - such as a mirror.
Axis of rotation
Center of mass
Reflection
Dispersion
48. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Free
Force
Half
Activity
49. 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.
Planck's constant
Electromagnetic wave
Maxima
Period
50. A wave with wave crests that propagate down the length of the medium - in contrast to stationary standing waves. The velocity at which a crest propagates is called the wave speed.
Latent heat of transformation
Traveling waves
Mechanical energy
Planck's constant
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