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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 the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Diffraction grating
Focal point
Simple harmonic oscillator
Tail
2. Waves in which the medium moves in the direction perpendicular to the propagation of the wave. Waves on a stretched string - water waves - and electromagnetic waves are all examples of transverse waves.
Mass
Electromagnetic wave
Transverse waves
Concave mirror
3. 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
Photon
Ideal gas law
Inversely proportional
Absolute zero
4. 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
Decibel
Inversely proportional
Weightlessness
Inertial reference frame
5. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Law of conservation of energy
Power
Work-energy theorem
Universal gas constant
6. Another word for the frequency of a sound wave.
Pitch
Transformer
Reflect
Incident ray
7. A body or set of bodies that we choose to analyze as a group.
System
Cycle
Basis vector
Heat
8. A pendulum consists of a bob connected to a rod or rope. At small angles - a pendulum's motion approximates simple harmonic motion as it swings back and forth without friction.
Kinetic friction
Radiation
Pendulum
Kepler's First Law
9. 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).
Standing wave
Transverse waves
Optics
Rotational motion
10. Light such that all of the associated waves have the same wavelength and are in phase.
Coherent light
Weightlessness
Total internal reflection
Inclined plane
11. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Direction
Center of curvature
Efficiency
Dispersion
12. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Minima
Celsius
Constant of proportionality
Angular momentum
13. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Dynamics
Activity
Law of reflection
Superposition
14. A sheet - film - or screen with a pattern of equally spaced slits. Typically the width of the slits and space between them is chosen to generate a particular diffraction pattern.
Equilibrium
Diffraction grating
Pressure
Doppler shift
15. The stable position of a system where the net force acting on the object is zero.
Law of conservation of energy
Equilibrium position
Rutherford nuclear model
Crest
16. The name of an electron released from the surface of a metal due to the photoelectric effect.
Photoelectron
Inertia
Frictional force
Dispersion
17. 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.
Kinematic equations
Rutherford nuclear model
Efficiency
System
18. 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 .
Instantaneous velocity
Ideal gas law
Angular displacement
Dot product
19. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Tail
Neutron
Radian
Nucleus
20. States that the net work done on an object is equal to the object's change in kinetic energy.
Normal force
Loudness
Work-energy theorem
Trough
21. A means of defining the direction of the cross product vector. To define the direction of the vector - position your right hand so that your fingers point in the direction of A - and then curl them around so that they point in the direction of B. Th
Right-hand rule
Latent heat of transformation
Constant of proportionality
Period
22. A device made of two coils - which converts current of one voltage into current of another voltage. In a step-up transformer - the primary coil has fewer turns than the secondary - thus increasing the voltage. In a step-down transformer - the seconda
Isolated system
Coefficient of kinetic friction
Equilibrium position
Transformer
23. 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.
Coherent light
Zeroth Law of Thermodynamics
Photoelectric effect
Chain reaction
24. The phenomenon of light bouncing off a surface - such as a mirror.
Induced current
Boiling point
Reflection
Crest
25. 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.
Diffraction
Activity
Radioactivity
Heat
26. The sum of a system's potential and kinetic energy. In many systems - including projectiles - pulleys - pendulums - and motion on frictionless surfaces - mechanical energy is conserved. One important type of problem in which mechanical energy is not
Unit vector
Period
Mass number
Mechanical energy
27. The coefficient of kinetic friction - - for two materials is the constant of proportionality between the normal force and the force of kinetic friction. It is always a number between zero and one.
Conduction
Electronvolt
Magnetic flux
Coefficient of kinetic friction
28. 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.
Ground state
Michelson-Morley experiment
Atom
Angular velocity
29. A collision in which both kinetic energy and momentum are conserved.
Conservation of Angular Momentum
Pulley
Elastic collision
Cosine
30. 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.
Faraday's Law
Maxima
Gamma decay
Angular velocity
31. For a gas held at constant pressure - temperature and volume are directly proportional.
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32. A particle - which consists of two protons and two neutrons. It is identical to the nucleus of a helium atom and is ejected by heavy particles undergoing alpha decay.
Alpha particle
Inclined plane
Nucleus
First Law of Thermodynamics
33. 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
Frictional force
Mass defect
Nuclear fission
Directly proportional
34. 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.
Vector
Hertz (Hz)
Latent heat of vaporization
Coherent light
35. 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.
Nuclear fusion
Tail
Photon
Force
36. The angle between a refracted ray and the line normal to the surface.
Charles's Law
Coefficient of linear expansion
Angular period
Angle of refraction
37. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Tension force
Real image
Mass defect
Proton
38. The number of digits that have been accurately measured. When combining several measurements in a formula - the resulting calculation can only have as many significant digits as the measurement that has the smallest number of significant digits.
Focal length
Significant digits
Latent heat of vaporization
Spring
39. 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
Incident ray
Period
Gravitational Potential Energy
Latent heat of fusion
40. A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.
Coefficient of linear expansion
Activity
Meson
Electronvolt
41. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Pulley
Coefficient of volume expansion
Inclined plane
Beta particle
42. 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.
Efficiency
Magnification
Doppler shift
Rotational motion
43. The effect of force on rotational motion.
Ideal gas law
Torque
Chain reaction
Zeroth Law of Thermodynamics
44. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Chain reaction
Strong nuclear force
Melting point
Magnetic flux
45. 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.
Ideal gas law
Atom
Pressure
Node
46. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Neutron
Kelvin
Coherent light
Weak nuclear force
47. An electromagnetic wave of very high frequency.
Right-hand rule
Temperature
Diffraction
Gamma ray
48. The force of gravity - F - between two particles of mass and - separated by a distance r - has a magnitude of - where G is the gravitational constant. The force is directed along the line joining the two particles.
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49. 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
Gravitational Potential Energy
Ground state
Cycle
Activity
50. 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.
Kepler's Third Law
Motional emf
Period
Kepler's Second Law