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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. A unit of measurement for energy on atomic levels. 1 eV = J.
Acceleration
Electronvolt
Zeroth Law of Thermodynamics
Gamma decay
2. An image created by a mirror or lens in such a way that light does actually come from where the image appears to be. If you place a screen in front of a real image - the image will be projected onto the screen.
Coefficient of kinetic friction
Thermal equilibrium
Real image
Gamma ray
3. 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.
Instantaneous velocity
Law of reflection
Pressure
Axis of rotation
4. 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
Focal length
Angular velocity
Beta particle
Beats
5. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Chain reaction
Angular period
Radian
Electric generator
6. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Potential energy
Mass defect
Angular velocity
Axis of rotation
7. 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
Coefficient of static friction
Gravitational Potential Energy
Wave
Frictional force
8. 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
Direction
Principal axis
Pressure
Directly proportional
9. The motion of a body in a circular path with constant speed.
Law of reflection
Force
Reflect
Uniform circular motion
10. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Decibel
Kelvin
Superposition
Concave lens
11. 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.
Thermal equilibrium
Coefficient of static friction
Mechanical energy
Centripetal force
12. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Neutrino
Kinetic energy
Proton
Gravitational Potential Energy
13. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Radiation
Conduction
Zeroth Law of Thermodynamics
Weak nuclear force
14. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Conduction
Reflection
Kepler's Third Law
Hertz (Hz)
15. 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.
Tail
Angular velocity
Atom
Michelson-Morley experiment
16. An electromagnetic wave of very high frequency.
Proton
Half
Gamma ray
Minima
17. 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
Nuclear fusion
Angular acceleration
Potential energy
18. 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
Collision
Law of reflection
Boiling point
Spectroscope
19. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Radius of curvature
Kinematic equations
Work function
Universal gas constant
20. The emf created by the motion of a charge through a magnetic field.
Thermal equilibrium
Motional emf
Snell's Law
Force
21. 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
Direction
Antinode
Gravitational constant
Gamma ray
22. 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.
Translational motion
Third Law of Thermodynamics
Ideal gas law
Direction
23. A vector quantity - or vector - is an object possessing - and fully described by - a magnitude and a direction. Graphically a vector is depicted as an arrow with its magnitude given by the length of the arrow and its direction given by where the arro
Speed
Vector
Activity
Newton's Second Law
24. In a right triangle - the sine of a given angle is the length of the side opposite the angle divided by the length of the hypotenuse.
Rigid body
Sine
Specific heat
Angular velocity
25. 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
Activity
Bohr atomic model
De Broglie wavelength
Strong nuclear force
26. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Harmonic series
Conservation of Angular Momentum
Alpha decay
Isolated system
27. The name of an electron released from the surface of a metal due to the photoelectric effect.
Kepler's Second Law
Rarefaction
Photoelectron
Radius of curvature
28. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Wavelength
Pascals
Elastic collision
Dispersion
29. The reaction force of the ground - a table - etc. - when an object is placed upon it. The normal force is a direct consequence of Newton's Third Law: when an object is placed on the ground - the ground pushes back with the same force that it is pushe
Normal force
Potential energy
Mass defect
Inertia
30. The line perpendicular to a surface. There is only one normal for any given surface.
Normal
Photoelectric effect
Compression
Coherent light
31. Waves that oscillate in the same direction as the propagation of the wave. Sound is carried by longitudinal waves - since the air molecules move back and forth in the same direction the sound travels.
Newton's First Law
Longitudinal waves
Tangent
Pressure
32. If a line is drawn from the sun to the planet - then the area swept out by this line in a given time interval is constant.
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33. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Electric generator
Universal gas constant
Medium
Proton
34. 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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35. A rough approximation of how gases work - that is quite accurate in everyday conditions. According to the kinetic theory - gases are made up of tiny - round molecules that move about in accordance with Newton's Laws - and collide with one another and
Kinetic theory of gases
Weak nuclear force
Vector
Electromagnetic induction
36. 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.
Impulse
Constructive interference
Inversely proportional
Index of refraction
37. The current induced in a circuit by a change in magnetic flux.
Legs
Standing wave
Latent heat of transformation
Induced current
38. 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.
Tangent
Faraday's Law
Activity
Rarefaction
39. 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.
Scalar
Instantaneous velocity
Diffraction
Weightlessness
40. 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.
Half
Inertia
Angular acceleration
Normal force
41. States that the net work done on an object is equal to the object's change in kinetic energy.
Work-energy theorem
Dispersion
Concave mirror
Force
42. 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.
Cosine
Nucleus
Spectroscope
Kinetic theory of gases
43. Objects that experience oscillatory or simple harmonic motion when distorted. Their motion is described by Hooke's Law.
Focal point
Spring
Pascals
Vector
44. 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.
Restoring force
Constructive interference
Heat
Rutherford nuclear model
45. A device that breaks incoming light down into spectral rays - so that one can see the exact wavelength constituents of the light.
Total internal reflection
Angular displacement
Spectroscope
Hertz (Hz)
46. A collision in which both kinetic energy and momentum are conserved.
Maxima
Elastic collision
Wave speed
Strong nuclear force
47. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Sublimation
Melting point
Angular acceleration
Inertia
48. A property common to both vectors and scalars. In the graphical representation of a vector - the vector's magnitude is equal to the length of the arrow.
Boiling point
Magnitude
Polarization
Oscillation
49. The property by which a charge moving in a magnetic field creates an electric field.
Coefficient of linear expansion
Electromagnetic induction
Mutual Induction
Latent heat of fusion
50. 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.
Uniform circular motion
Planck's constant
Thermal equilibrium
Magnification