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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 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.
Gamma ray
Uniform circular motion
Crest
Newton
2. 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.
Loudness
Diffraction grating
Radioactive decay
Incident ray
3. An object cannot be cooled to absolute zero.
Index of refraction
Wave speed
Activity
Third Law of Thermodynamics
4. 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.
Entropy
Total internal reflection
Induced current
Decay constant
5. An area of high air pressure that acts as the wave trough for sound waves. The spacing between successive rarefactions is the wavelength of sound - and the number of successive areas of rarefaction that arrive at the ear per second is the frequency -
Normal
Rarefaction
Atomic number
Newton's First Law
6. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Calorie
Conservation of Angular Momentum
Diffraction
Restoring force
7. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Power
Law of conservation of energy
Mutual Induction
Right-hand rule
8. An object at rest remains at rest - unless acted upon by a net force. An object in motion remains in motion - unless acted upon by a net force.
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9. 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
Phase
Right-hand rule
Cycle
Gamma decay
10. 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.
Rigid body
Refracted ray
Rotational motion
Mass number
11. A wave that interferes with its own reflection so as to produce oscillations which stand still - rather than traveling down the length of the medium. Standing waves on a string with both ends tied down make up the harmonic series.
Standing wave
Ideal gas law
Third Law of Thermodynamics
Kepler's Second Law
12. The effect of force on rotational motion.
Atom
Displacement
Torque
Direction
13. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Pitch
Newton's First Law
Proton
Potential energy
14. 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.
Zeroth Law of Thermodynamics
Doppler shift
Law of reflection
Trough
15. 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.
Newton's Third Law
Convection
Nuclear fusion
Coherent light
16. A wavelength - given by = h/mv - which is associated with matter. Louis de Broglie proposed the idea that matter could be treated as waves in 1923 and applied this theory successfully to small particles like electrons.
Weightlessness
Direction
De Broglie wavelength
Frictional force
17. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Radius of curvature
Kinematic equations
Kepler's Second Law
Radian
18. 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
Cycle
Angle of refraction
Neutron number
Planck's constant
19. 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.
Alpha particle
Boyle's Law
Latent heat of sublimation
Coefficient of static friction
20. The emf created by the motion of a charge through a magnetic field.
Spectroscope
Angular period
Convection
Motional emf
21. An object is called radioactive if it undergoes radioactive decay.
Centripetal acceleration
Weightlessness
Period
Radioactivity
22. The unit of magnetic flux - equal to one T · m2.
Coefficient of kinetic friction
Superposition
Weak nuclear force
Weber
23. A unit vector is a vector with length 1.
Boyle's Law
Work-energy theorem
Unit vector
Sound
24. A number - Z - associated with the number of protons in the nucleus of an atom. Every element can be defined in s of its atomic number - since every atom of a given element has the same number of protons.
Atomic number
Beta decay
Spring
Torque
25. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Centripetal force
Electromagnetic induction
Virtual image
Momentum
26. The disorder of a system.
Energy
Axis of rotation
Entropy
Electromagnetic wave
27. 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.
Atomic number
Compression
Significant digits
Kinetic friction
28. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Wave
Mass
Convection
Third Law of Thermodynamics
29. A collision in which both kinetic energy and momentum are conserved.
Induced current
Rarefaction
Spring constant
Elastic collision
30. A form of vector multiplication - where two vectors are multiplied to produce a third vector. The cross product of two vectors - A and B - separated by an angle - - is - where is a unit vector perpendicular to both A and B. To deine which direction
Directly proportional
Angular displacement
Pulley
Cross product
31. A vector quantity defined as the rate of change of the velocity vector with time.
Loudness
Equilibrium
Vertex
Acceleration
32. The velocity at any given instant in time. To be contrasted with average velocity - which is a measure of the change in displacement over a given time interval.
Concave mirror
Spring constant
Radioactive decay
Instantaneous velocity
33. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Standing wave
Photon
Radian
Zeroth Law of Thermodynamics
34. The points midway between nodes on a standing wave - where the oscillations are largest.
Kepler's Second Law
Inversely proportional
Snell's Law
Antinode
35. A collision in which momentum is conserved but kinetic energy is not.
Tip
Thermal equilibrium
Gravitational constant
Inelastic collision
36. A coefficient that tells how much the volume of a solid will change when it is heated or cooled.
Heat transfer
Coefficient of volume expansion
Electronvolt
Universal gas constant
37. A device that breaks incoming light down into spectral rays - so that one can see the exact wavelength constituents of the light.
Gamma ray
Spectroscope
Centripetal force
Sublimation
38. 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
Amplitude
Angle of refraction
Second Law of Thermodynamics
Oscillation
39. Two materials are in thermal equilibrium if they are at the same temperature.
Thermal equilibrium
Cycle
Coefficient of static friction
Pendulum
40. The property by which a charge moving in a magnetic field creates an electric field.
Decibel
Electromagnetic induction
Coefficient of volume expansion
Phase
41. In an interference or diffraction pattern - the places where there is the least light.
Focal length
Magnification
Dispersion
Minima
42. An object that moves about a stable equilibrium point and experiences a restoring force that is directly proportional to the oscillator's displacement.
Sound
Half
Angle of reflection
Simple harmonic oscillator
43. The dot product of the area and the magnetic field passing through it. Graphically - it is a measure of the number and length of magnetic field lines passing through that area. It is measured in Webers (Wb).
De Broglie wavelength
Radian
Weak nuclear force
Magnetic flux
44. 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
Total internal reflection
Universal gas constant
Angular momentum
Second Law of Thermodynamics
45. The two shorter sides of a right triangle that meet at the right angle.
Orbit
Legs
Equilibrium position
Magnitude
46. Indicates how "bouncy" or "stiff" a spring is. More specifically - the spring constant - k - is the constant of proportionality between the restoring force exerted by the spring - and the spring's displacement from equilibrium. The greater the value
Convection
Simple harmonic oscillator
Spring constant
Cycle
47. The angle between a reflected ray and the normal.
Angle of reflection
Rutherford nuclear model
Oscillation
Impulse
48. The movement of a rigid body's center of mass in space.
Translational motion
Law of reflection
Inelastic collision
Focal length
49. 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.
Electric generator
Weak nuclear force
Index of refraction
Hertz (Hz)
50. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Spectroscope
Newton
Latent heat of vaporization
Law of conservation of energy