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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 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.
Tension force
Charles's Law
Sine
Sublimation
2. An area of high air pressure that acts as the wave crest for sound waves. The spacing between successive compressions is the wavelength of sound - and the number of successive areas of compression that arrive at the ear per second is the frequency -
Frictional force
Compression
Center of curvature
Photoelectron
3. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Work function
Concave mirror
Translational motion
Ground state
4. The unit of magnetic flux - equal to one T · m2.
Instantaneous velocity
Moment of inertia
Weber
Newton's Law of Universal Gravitation
5. The property by which a changing current in one coil of wire induces an emf in another.
Mutual Induction
Beta particle
Quark
Electronvolt
6. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Phase change
Hertz (Hz)
Compression
Convex mirror
7. 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.
Law of reflection
Translational kinetic energy
Angular position
Diffraction grating
8. 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
Conservation of Angular Momentum
Angular momentum
Frictional force
Coefficient of static friction
9. A neutrally charged particle that - along with protons - constitutes the nucleus of an atom.
Translational motion
Neutron
Vector
Photoelectron
10. The state of a nonrotating object upon whom the net torque acting is zero.
Equilibrium
Cosine
Electric generator
Ground state
11. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Equilibrium
Law of reflection
Gold foil experiment
Wave
12. The time - T - required for a rigid body to complete one revolution.
Static friction
Motional emf
Angular period
Simple harmonic oscillator
13. A constant in the numerator of a formula.
Harmonic series
Constant of proportionality
Celsius
Right-hand rule
14. 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
Spring
Gamma decay
Oscillation
Direction
15. 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.
Longitudinal waves
Coefficient of kinetic friction
Real image
Loudness
16. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Phase
Decay constant
Standing wave
Mass defect
17. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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18. 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.
Coefficient of linear expansion
Mechanical energy
Ideal gas law
Gold foil experiment
19. States that the current induced in a circuit by a change in magnetic flux is in the direction that will oppose that change in flux. Using the right-hand rule - point your thumb in the opposite direction of the change in magnetic flux. The direction y
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20. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.
Sublimation
Potential energy
Heat
Electric generator
21. The separation of different color light via refraction.
Dispersion
Efficiency
System
Zeroth Law of Thermodynamics
22. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Ground state
Equilibrium position
Centripetal acceleration
Decibel
23. 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.
Pendulum
Radius of curvature
Electron
Motional emf
24. 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.
Convex lens
Inertial reference frame
Weightlessness
Induced current
25. The amount heat necessary to cause a substance to undergo a phase transition.
Distance
Ground state
Maxima
Latent heat of transformation
26. 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
Tail
Hertz (Hz)
Focal point
Latent heat of fusion
27. The tendency of an object to remain at a constant velocity - or its resistance to being accelerated. Newton's First Law is alternatively called the Law of Inertia because it describes this tendency.
Inertia
Centripetal force
Latent heat of vaporization
First Law of Thermodynamics
28. The number of cycles executed by a system in one second. Frequency is the inverse of period - f = 1/T. Frequency is measured in hertz - Hz.
Directly proportional
Latent heat of transformation
Isolated system
Frequency
29. The force that binds protons and neutrons together in the atomic nucleus.
Translational kinetic energy
Electromagnetic wave
Strong nuclear force
Dynamics
30. The movement of a rigid body's center of mass in space.
Translational motion
Third Law of Thermodynamics
Reflect
Direction
31. The two shorter sides of a right triangle that meet at the right angle.
Coefficient of kinetic friction
Legs
Meson
Elastic collision
32. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Loudness
Transformer
Amplitude
Kinematics
33. 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
Uniform circular motion
Directly proportional
Specific heat
Center of curvature
34. Done when energy is transferred by a force. The work done by a force F in displacing an object by s is W = F · s.
Weber
Sine
Coefficient of linear expansion
Work
35. The energy of a particle rotating around an axis.
Static friction
Collision
Polarization
Rotational kinetic energy
36. 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
Right-hand rule
Latent heat of vaporization
Margin of error
Bohr atomic model
37. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Potential energy
Superposition
Angular momentum
Neutrino
38. Another word for the frequency of a sound wave.
Margin of error
Photoelectron
Weightlessness
Pitch
39. 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.
Magnification
Kinetic energy
Pascals
Internal energy
40. 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.
Concave mirror
Half
Nuclear fusion
Mole
41. The force between two surfaces that are not moving relative to one another. The force of static friction is parallel to the plane of contact between the two objects and resists the force pushing or pulling on the object.
Acceleration
Static friction
Transformer
Isotope
42. A vector quantity - L - that is the rotational analogue of linear momentum. For a single particle - the angular momentum is the cross product of the particle's displacement from the axis of rotation and the particle's linear momentum - . For a rigid
Kinematics
Efficiency
Angular momentum
Unit vector
43. 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
Gamma decay
Uncertainty principle
Coherent light
Doppler shift
44. 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.
Boiling point
Normal
Gravitational constant
Charles's Law
45. 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.
Law of reflection
Inelastic collision
Radiation
Photoelectric effect
46. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Traveling waves
Total internal reflection
Reflection
Tail
47. Also called a converging lens - a lens that is thicker in the middle than at the edges. Convex lenses refract light through a focal point.
Pascals
Convex lens
Internal energy
Nucleus
48. There are a few versions of this law. One is that heat flows spontaneously from hot to cold - but not in the reverse direction. Another is that there is no such thing as a 100% efficient heat engine. A third states that the entropy - or disorder - of
Second Law of Thermodynamics
Centripetal force
Photoelectron
Angular displacement
49. The lowest theoretical temperature a material can have - where the molecules that make up the material have no kinetic energy. Absolute zero is reached at 0 K or -273º C.
Absolute zero
Superposition
Diffraction
Refracted ray
50. 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
Sine
Vector
Oscillation
Potential energy