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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. The joule (J) is the unit of work and energy. A joule is 1 N · m or 1 kg · m2/s2.
Radioactive decay
Angle of refraction
Joule
Tangent
2. 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.
Focal length
Normal
Hertz (Hz)
Angular momentum
3. The current induced in a circuit by a change in magnetic flux.
Joule
Optics
Induced current
Dispersion
4. The standing wave with the lowest frequency that is supported by a string with both ends tied down is called the fundamental - or resonance - of the string. The wavelength of the fundamental is twice the length of the string - .
Gravitational Potential Energy
Tip
Fundamental
Traveling waves
5. Two materials are in thermal equilibrium if they are at the same temperature.
Phase
Thermal equilibrium
Gravitational constant
Lenz's Law
6. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.
First Law of Thermodynamics
Critical angle
Center of curvature
Threshold frequency
7. The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction - fission or fusion is rapidly transferred to a large number of atoms - releasing tremendous amounts of ene
Zeroth Law of Thermodynamics
Chain reaction
Equilibrium position
Hooke's Law
8. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Kinematics
Radius of curvature
Planck's constant
Cross product
9. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Normal force
Mutual Induction
Cross product
Oscillation
10. 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.
Harmonic series
Fundamental
Gamma decay
Atom
11. A collision in which the colliding particles stick together.
Completely inelastic collision
Angular acceleration
Superposition
Total internal reflection
12. 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.
Equilibrium position
Impulse
Radius of curvature
Mole
13. When a solid - liquid - or gas changes into another phase of matter.
Cycle
Kinetic friction
Weight
Phase change
14. 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.
Induced current
Angular acceleration
Half
Activity
15. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Heat
Electromagnetic induction
Tip
Coefficient of volume expansion
16. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Half
Joule
Centripetal acceleration
First Law of Thermodynamics
17. 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
Hypotenuse
Polarization
Harmonic series
Meson
18. The center of a mirror or lens.
Torque
Kinematic equations
Constant of proportionality
Vertex
19. 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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20. 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.
Michelson-Morley experiment
Efficiency
Gravitational constant
Coefficient of static friction
21. The net change - - in a point's angular position - . It is a scalar quantity.
Angular displacement
System
Medium
Momentum
22. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Universal gas constant
Ground state
Tip
Coefficient of volume expansion
23. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Trough
Law of reflection
Nucleus
Wavelength
24. The stable position of a system where the net force acting on the object is zero.
Component
Cycle
Equilibrium position
Translational motion
25. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Pascals
Neutrino
Hertz (Hz)
Angular frequency
26. The points midway between nodes on a standing wave - where the oscillations are largest.
Antinode
First Law of Thermodynamics
Constant of proportionality
Index of refraction
27. The energy associated with the configuration of bodies attracted to each other by the gravitational force. It is a measure of the amount of work necessary to get the two bodies from a chosen point of reference to their present position. This point of
Gravitational Potential Energy
Total internal reflection
Work function
Kepler's Third Law
28. 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.
Rotational kinetic energy
Heat engine
Instantaneous velocity
Heat
29. The property by which a charge moving in a magnetic field creates an electric field.
Electromagnetic induction
Equilibrium position
Legs
Diffraction grating
30. Defined as the rate at which work is done - or the rate at which energy is transformed. P is measured in joules per second (J/s) - or watts (W).
Restoring force
Kepler's Second Law
Power
Newton's Third Law
31. A wave that interferes with its own reflection so as to produce oscillations which stand still - rather than traveling down the length of the medium. Standing waves on a string with both ends tied down make up the harmonic series.
Magnitude
Dispersion
Angle of reflection
Standing wave
32. 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
Moment of inertia
Loudness
Velocity
Collision
33. The force that binds protons and neutrons together in the atomic nucleus.
Strong nuclear force
Virtual image
Coefficient of volume expansion
Transformer
34. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.
Absolute zero
Mechanical energy
Sublimation
Gold foil experiment
35. 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.
Atom
Constructive interference
Gravitational constant
Spring
36. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Reflect
Angular frequency
Strong nuclear force
Tail
37. An electromagnetic wave of very high frequency.
Mass defect
Gamma ray
Reflected ray
Pendulum
38. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Pressure
Gold foil experiment
Gamma decay
Newton's Second Law
39. 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.
Harmonic series
Coefficient of static friction
Electron
Zeroth Law of Thermodynamics
40. 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.
Direction
Rarefaction
Magnitude
Orbit
41. A negatively charged particle that orbits the nucleus of the atom.
Law of reflection
Electron
Coefficient of kinetic friction
Inertial reference frame
42. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Wave
Radioactivity
Kinetic friction
Coefficient of static friction
43. The amount of heat of a material required to raise the temperature of either one kilogram or one gram of that material by one degree Celsius. Different units may be used depending on whether specific heat is measured in s of grams or kilograms - and
Decay constant
Photoelectric effect
Specific heat
Crest
44. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Motional emf
Dynamics
Free
Work-energy theorem
45. A logorithmic unit for measuring the volume of sound - which is the square of the amplitude of sound waves.
Activity
Axis of rotation
Decibel
Minima
46. 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.
Reflect
Boiling point
Centripetal acceleration
Transverse waves
47. 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
Diffraction grating
Uncertainty principle
Isotope
48. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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49. 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.
Critical angle
Electromagnetic wave
Direction
Mutual Induction
50. A frequency - f - defined as the number of revolutions a rigid body makes in a given time interval. It is a scalar quantity commonly denoted in units of Hertz (Hz) or s-1.
Electric generator
Electromagnetic spectrum
Cosine
Angular frequency