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Test your basic knowledge |
SAT Subject Test: hysics
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Subjects
:
sat
,
science
,
physics
Instructions:
Answer 50 questions in 15 minutes.
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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 object that retains its overall shape - meaning that the particles that make up the rigid body stay in the same position relative to one another.
Compression
Equilibrium
Centripetal force
Rigid body
2. In an interference or diffraction pattern - the places where there is the most light.
Pulley
Maxima
Equilibrium position
Acceleration
3. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Gold foil experiment
Weightlessness
Nuclear fusion
Basis vector
4. For a gas held at constant pressure - temperature and volume are directly proportional.
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5. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Efficiency
Electron
Legs
Neutrino
6. 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 - .
Fundamental
Weight
Sine
Latent heat of fusion
7. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Collision
Boiling point
Center of curvature
Tip
8. An object cannot be cooled to absolute zero.
Compression
Third Law of Thermodynamics
Center of curvature
Heat engine
9. 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
Radioactive decay
Dynamics
Dot product
Doppler shift
10. 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.
Distance
Isolated system
Restoring force
Rigid body
11. 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.
Latent heat of sublimation
Isotope
Electromagnetic spectrum
Index of refraction
12. The force transmitted along a rope or cable.
Tension force
Pressure
Power
Convex mirror
13. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Orbit
Spectroscope
Incident ray
Hertz (Hz)
14. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Radioactive decay
Latent heat of vaporization
Convex lens
Proton
15. An object that moves about a stable equilibrium point and experiences a restoring force that is directly proportional to the oscillator's displacement.
Isolated system
Law of conservation of energy
Simple harmonic oscillator
Hypotenuse
16. A nuclear reaction in which a high-energy neutron bombards a heavy - unstable atomic nucleus - causing it to split into two smaller nuclei - and releasing some neutrons and a vast amount of energy at the same time
Weightlessness
Decibel
Nuclear fission
Thermal equilibrium
17. 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
Mass
Neutrino
Bohr atomic model
Inelastic collision
18. A collision in which both kinetic energy and momentum are conserved.
Elastic collision
Uncertainty principle
Atom
Critical angle
19. The property of a vector that distinguishes it from a scalar: while scalars have only a magnitude - vectors have both a magnitude and a direction. When graphing vectors in the xy-coordinate space - direction is usually given by the angle measured cou
Phase
Gamma ray
Wavelength
Direction
20. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Instantaneous velocity
Electromagnetic spectrum
De Broglie wavelength
Kepler's First Law
21. Any vector can be expressed as the sum of two mutually perpendicular component vectors. Usually - but not always - these components are multiples of the basis vectors - and ; that is - vectors along the x-axis and y-axis. We define these two vectors
Magnification
Motional emf
Component
Real image
22. The energy of a particle rotating around an axis.
Normal force
Rotational kinetic energy
Rigid body
Kepler's Second Law
23. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.
Doppler shift
Rotational motion
Angle of refraction
Sublimation
24. The line perpendicular to a surface. There is only one normal for any given surface.
Spring constant
Mutual Induction
Induced current
Normal
25. 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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26. 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
Nuclear fusion
Crest
Center of mass
Isotope
27. 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.
Impulse
Nucleus
Law of conservation of energy
Decay constant
28. The straight line that runs through the focal point and the vertex of a mirror or lens.
Gold foil experiment
Principal axis
Weber
Alpha decay
29. 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.
Amplitude
Crest
Critical angle
Inertia
30. The cosine of an angle in a right triangle is equal to the length of the side adjacent to the angle divided by the length of the hypotenuse.
Speed
Cosine
Index of refraction
Force
31. 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
Critical angle
Collision
Radioactivity
Mutual Induction
32. The energy of a particle moving in space. It is defined in s of a particle's mass - m - and velocity - v - as (1/2)mv2.
Beats
Translational kinetic energy
Decay constant
Polarization
33. 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.
Gamma ray
Efficiency
Heat
Deposition
34. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Work function
Hooke's Law
Axis of rotation
Medium
35. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.
Calorie
Sublimation
Specific heat
Neutrino
36. Objects that experience oscillatory or simple harmonic motion when distorted. Their motion is described by Hooke's Law.
Center of mass
Spring
Instantaneous velocity
Alpha particle
37. The ratio of the size of the image produced by a mirror or lens to the size of the original object. This number is negative if the image is upside-down.
Atomic number
Induced current
Work
Magnification
38. The force between two surfaces moving relative to one another. The frictional force is parallel to the plane of contact between the two objects and in the opposite direction of the sliding object's motion.
Kinetic friction
Equilibrium position
Virtual image
Total internal reflection
39. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Convex mirror
Conservation of Angular Momentum
Celsius
Doppler shift
40. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Inertia
Real image
Conservation of Angular Momentum
Bohr atomic model
41. The property by which a charge moving in a magnetic field creates an electric field.
Cycle
Efficiency
Electromagnetic induction
Inversely proportional
42. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Newton's Second Law
Work function
Focal length
Ground state
43. The center of a mirror or lens.
Wavelength
Law of conservation of energy
Vertex
Kepler's First Law
44. Heat transfer by molecular collisions.
Reflected ray
Constant of proportionality
Conduction
Deposition
45. 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.
Universal gas constant
Refraction
Trough
Conservation of Angular Momentum
46. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Weak nuclear force
Equilibrium position
Decibel
Coherent light
47. A transfer of thermal energy from one system to another.
Index of refraction
Heat transfer
Heat
Vertex
48. 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.
Oscillation
Decay constant
Ideal gas law
Joule
49. The angle between a reflected ray and the normal.
Hertz (Hz)
Nuclear fission
Angle of reflection
Newton's Third Law
50. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Beta particle
Quark
Decay constant
Neutrino
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