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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 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.
Traveling waves
Magnification
Frequency
Snell's Law
2. 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.
Angular period
Vector
Diffraction grating
Angular frequency
3. The force that binds protons and neutrons together in the atomic nucleus.
Mass defect
Cosine
De Broglie wavelength
Strong nuclear force
4. A collision in which the colliding particles stick together.
Completely inelastic collision
Planck's constant
Half
Chain reaction
5. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.
Newton's Third Law
Significant digits
Neutrino
Refracted ray
6. 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
Component
Radioactivity
Angular period
Normal
7. Linear momentum - p - commonly called "momentum" for short - is a vector quantity defined as the product of an object's mass - m - and its velocity - v.
Work function
Momentum
Angle of reflection
Weightlessness
8. The building blocks of all matter - atoms are made up of a nucleus consisting of protons and neutrons - and a number of electrons that orbit the nucleus. An electrically neutral atom has as many protons as it has electrons.
Heat transfer
Entropy
Transverse waves
Atom
9. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Free
Pendulum
Longitudinal waves
Atomic number
10. 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
Angular momentum
Alpha particle
Inertial reference frame
Beats
11. 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.
Tension force
Absolute zero
Mass
Wave speed
12. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Tension force
Superposition
Kepler's Second Law
Translational motion
13. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Standing wave
Refraction
Weak nuclear force
Magnitude
14. The center of a mirror or lens.
Motional emf
Vertex
Tip
Scalar
15. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Chain reaction
Photon
Kinetic theory of gases
Deposition
16. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Specific heat
Node
Power
Ground state
17. 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
Momentum
Half
Threshold frequency
Normal force
18. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Isolated system
Radian
Normal force
Kepler's Second Law
19. 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.
Frequency
Coherent light
Fundamental
Focal length
20. 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 -
Reflected ray
Distance
Compression
Destructive interference
21. 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.
Uniform circular motion
Weightlessness
Amplitude
Neutron number
22. Heat transfer via the mass movement of molecules.
Convection
Dot product
Calorie
Joule
23. 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
Harmonic series
Energy
Law of reflection
Doppler shift
24. 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.
Newton's First Law
Coefficient of static friction
Charles's Law
Optics
25. Two oscillators that have the same frequency and amplitude - but reach their maximum displacements at different times - are said to have different phases. Similarly - two waves are in phase if their crests and troughs line up exactly - and they are o
Diffraction
Phase
Vertex
Newton's Third Law
26. 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.
Total internal reflection
Uncertainty principle
Vertex
Translational kinetic energy
27. 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.
Component
Ideal gas law
Frictional force
Newton's Third Law
28. 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.
Convex lens
Radian
Reflect
Joule
29. The current induced in a circuit by a change in magnetic flux.
Atomic number
Induced current
Index of refraction
Photon
30. A scalar quantity. If an object is moved from point A to point B in space along path AB - the distance that the object has traveled is the length of the path AB. Distance is to be contrasted with displacement - which is simply a measure of the distan
Proton
Strong nuclear force
Torque
Distance
31. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Spring
Focal point
Newton's Third Law
Kinematic equations
32. 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
Sine
Photoelectron
Bohr atomic model
Displacement
33. 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.
Half
Virtual image
Nuclear fusion
Margin of error
34. A measurement of a body's inertia - or resistance to being accelerated.
Energy
Mass
Frictional force
Total internal reflection
35. A form of radioactive decay where a heavy element emits an alpha particle and some energy - thus transforming into a lighter - more stable - element.
Motional emf
Speed
Alpha decay
Trough
36. A class of elementary particle whose mass is between that of a proton and that of an electron. A common kind of meson is the pion.
Meson
Thermal energy
Node
Threshold frequency
37. The path of each planet around the sun is an ellipse with the sun at one focus.
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38. 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 .
Dot product
De Broglie wavelength
Convection
Coherent light
39. A vector quantity - commonly denoted by the vector s - which reflects an object's change in spatial position. The displacement vector points from the object's starting position to the object's current position in space. If an object is moved from poi
Alpha decay
Law of reflection
Equilibrium
Displacement
40. The effect of force on rotational motion.
Equilibrium position
Torque
Meson
Energy
41. 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
Mechanical energy
Constant of proportionality
Destructive interference
Quark
42. 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.
Static friction
Potential energy
Cosine
Kepler's Third Law
43. 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
Sound
Direction
Collision
Radiation
44. The energy of a particle rotating around an axis.
Inertia
Rotational kinetic energy
Inclined plane
Vertex
45. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Oscillation
Strong nuclear force
Significant digits
Quark
46. Another word for the frequency of a sound wave.
Second Law of Thermodynamics
Rutherford nuclear model
Pitch
Activity
47. The gravitational force exerted on a given mass.
Weight
Michelson-Morley experiment
Margin of error
Gamma ray
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. The movement of a rigid body's center of mass in space.
Joule
Translational motion
Center of curvature
Convex mirror
50. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Electromagnetic induction
Instantaneous velocity
Beta particle
Direction
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