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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. In an interference or diffraction pattern - the places where there is the least light.
Minima
Magnification
Ideal gas law
Sound
2. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Rutherford nuclear model
Radian
Weak nuclear force
Melting point
3. A collision in which both kinetic energy and momentum are conserved.
Specific heat
Work-energy theorem
Moment of inertia
Elastic collision
4. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Electron
Nucleus
Acceleration
Rotational kinetic energy
5. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Kepler's First Law
Loudness
Destructive interference
Rotational motion
6. 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.
Atom
Rutherford nuclear model
Motional emf
Direction
7. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Magnitude
Wave
Cosine
Entropy
8. 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
Gravitational constant
Bohr atomic model
Equilibrium position
Trough
9. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Deposition
Isotope
Legs
Wavelength
10. 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
Incident ray
Coefficient of kinetic friction
Medium
Rarefaction
11. 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.
Celsius
Pendulum
Rotational kinetic energy
Angular position
12. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Distance
Gold foil experiment
Pitch
Radian
13. 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.
Normal force
Work
Rarefaction
Decay constant
14. A neutrally charged particle that - along with protons - constitutes the nucleus of an atom.
Neutrino
Electric generator
Right-hand rule
Neutron
15. A force caused by the roughness of two materials in contact - deformations in the materials - and a molecular attraction between the materials. Frictional forces are always parallel to the plane of contact between two surfaces and opposite the direct
Nuclear fission
Frictional force
Angular velocity
Basis vector
16. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Power
Polarization
Photoelectric effect
Restoring force
17. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Hertz (Hz)
Lenz's Law
Charles's Law
Pressure
18. 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
Activity
Amplitude
Electric generator
Pascals
19. A vector quantity - equal to the rate of change of the angular velocity vector with time. It is typically given in units of rad/s2.
Coefficient of static friction
Induced current
Diffraction grating
Angular acceleration
20. 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.
Transverse waves
Diffraction grating
Reflection
Orbit
21. A scale for measuring temperature - defined such that 0K is the lowest theoretical temperature a material can have. 273K = 0ºC.
Nuclear fusion
Kinematics
Kelvin
Angular momentum
22. 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.
Minima
Work function
Weightlessness
Power
23. The name of an electron released from the surface of a metal due to the photoelectric effect.
Electromagnetic induction
Scalar
Photoelectron
Gamma ray
24. Another word for the frequency of a sound wave.
Optics
Angular period
Convection
Pitch
25. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Decibel
Free
Hertz (Hz)
Mass defect
26. An experiment in 1879 that showed that the speed of light is constant to all observers. Einstein used the results of this experiment as support for his theory of special relativity.
Centripetal acceleration
Loudness
Rotational kinetic energy
Michelson-Morley experiment
27. 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.
Kinematic equations
Translational kinetic energy
Virtual image
Mass number
28. 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.
Component
Uniform circular motion
Orbit
Uncertainty principle
29. Energy associated with an object's position in space - or configuration in relation to other objects. This is a latent form of energy - where the amount of potential energy reflects the amount of energy that potentially could be released as kinetic e
Potential energy
Angular position
Dispersion
Absolute zero
30. The point of a mirror or lens where all light that runs parallel to the principal axis will be focused. Concave mirrors and convex lenses are designed to focus light into the focal point. Convex mirrors and concave lenses focus light away from the fo
Concave lens
Principal axis
Focal point
Latent heat of sublimation
31. 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
Wave speed
De Broglie wavelength
Phase
Directly proportional
32. To every action - there is an equal and opposite reaction. If an object A exerts a force on another object B - B will exert on A a force equal in magnitude and opposite in direction to the force exerted by A.
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33. 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.
Conservation of Angular Momentum
Completely inelastic collision
De Broglie wavelength
Ideal gas law
34. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Oscillation
Hertz (Hz)
Concave mirror
Convection
35. 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.
Angular displacement
Deposition
Period
Margin of error
36. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Standing wave
Gamma decay
Sound
Moment of inertia
37. A measurement of a body's inertia - or resistance to being accelerated.
Mass
Planck's constant
First Law of Thermodynamics
Tangent
38. Heat transfer via the mass movement of molecules.
Newton's First Law
Convection
Orbit
Phase
39. The amount heat necessary to cause a substance to undergo a phase transition.
Transformer
Kinetic theory of gases
Transverse waves
Latent heat of transformation
40. An object cannot be cooled to absolute zero.
Third Law of Thermodynamics
Concave mirror
Latent heat of fusion
Constructive interference
41. 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.
Critical angle
Kinetic theory of gases
Reflection
Ideal gas law
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.
Atomic number
Electromagnetic spectrum
Universal gas constant
Neutrino
43. A transfer of thermal energy from one system to another.
Heat transfer
Antinode
Beta particle
Weightlessness
44. An object is called radioactive if it undergoes radioactive decay.
Electronvolt
Scalar
Radioactivity
Real image
45. When dealing with reflection or refraction - the incident ray is the ray of light before it strikes the reflecting or refracting surface.
Hypotenuse
Chain reaction
Electromagnetic wave
Incident ray
46. A form of vector multiplication - where two vectors are multiplied to produce a scalar. The dot product of two vectors - A and B - is expressed by the equation A · B = AB cos .
Dot product
Angle of incidence
Sublimation
Thermal energy
47. The amount of error that's possible in a given measurement.
Right-hand rule
Margin of error
Normal
Law of reflection
48. In oscillation - a cycle occurs when an object undergoing oscillatory motion completes a "round-trip." For instance - a pendulum bob released at angle has completed one cycle when it swings to and then back to again. In period motion - a cycle is the
Free
Cycle
Universal gas constant
Electromagnetic spectrum
49. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.
Neutrino
Kinetic friction
Frequency
Work-energy theorem
50. A unit vector is a vector with length 1.
Weight
Gold foil experiment
Unit vector
Atomic number