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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 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.
Amplitude
Focal length
Atom
Gamma decay
2. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Minima
Heat engine
Medium
Wave
3. 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.
Work
Pressure
Transverse waves
Antinode
4. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Electronvolt
Collision
Scalar
Electromagnetic spectrum
5. A form of radioactive decay where a heavy element emits an alpha particle and some energy - thus transforming into a lighter - more stable - element.
Alpha decay
Diffraction grating
Diffraction
Convex lens
6. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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7. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Beta particle
Margin of error
Normal force
Deposition
8. 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
Efficiency
Speed
Second Law of Thermodynamics
Specific heat
9. States that the net work done on an object is equal to the object's change in kinetic energy.
Spring constant
Sine
Newton's Third Law
Work-energy theorem
10. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Zeroth Law of Thermodynamics
Amplitude
Phase change
11. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.
Kepler's Second Law
Threshold frequency
Traveling waves
Concave mirror
12. 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.
Uncertainty principle
Uniform circular motion
Unit vector
Latent heat of vaporization
13. 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
Critical angle
Hooke's Law
Concave lens
14. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Vector
Component
Dynamics
Radioactive decay
15. A collision in which the colliding particles stick together.
Completely inelastic collision
Newton
Tip
Heat
16. A measure of the average kinetic energy of the molecules in a system. Temperature is related to heat by the specific heat of a given substance.
Newton's Law of Universal Gravitation
Decay constant
Temperature
Meson
17. 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
Cross product
Direction
Heat
Frequency
18. Given the period - T - and semimajor axis - a - of a planet's orbit - the ratio is the same for every planet.
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19. 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
Angular period
Phase change
Mechanical energy
Weightlessness
20. 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.
Static friction
Normal force
Period
Reflect
21. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Radius of curvature
Decay constant
Axis of rotation
Pressure
22. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Wave speed
Oscillation
Quark
Universal gas constant
23. A small particle-like bundle of electromagnetic radiation.
Photon
Critical angle
Neutron number
Efficiency
24. A unit vector is a vector with length 1.
Unit vector
Latent heat of vaporization
Transverse waves
Mechanical energy
25. 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.
Significant digits
Mass
Spring constant
Newton's Third Law
26. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Newton's First Law
Rotational motion
Hypotenuse
Calorie
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.
Work function
Unit vector
Frequency
Coefficient of kinetic friction
28. In radioactive substances - the number of nuclei that decay per second. Activity - A - will be larger in large samples of radioactive material - since there will be more nuclei.
Second Law of Thermodynamics
Direction
Activity
Quark
29. The longest side of a right triangle - opposite to the right angle.
Frictional force
Hypotenuse
Force
Tension force
30. The energy stored in a thermodynamic system.
Convex lens
Internal energy
Simple harmonic oscillator
Diffraction
31. The phenomenon by which light traveling from a high n to a low n material will reflect from the optical interface if the incident angle is greater than the critical angle.
Orbit
Tangent
Cycle
Total internal reflection
32. 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).
Magnitude
Calorie
Rutherford nuclear model
Optics
33. Relates the angle of incidence to the angle of refraction: .
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34. 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.
Axis of rotation
Charles's Law
Completely inelastic collision
Meson
35. When a solid - liquid - or gas changes into another phase of matter.
Inertial reference frame
Phase change
Standing wave
Angle of refraction
36. The two shorter sides of a right triangle that meet at the right angle.
Photoelectric effect
Mole
Boiling point
Legs
37. The points midway between nodes on a standing wave - where the oscillations are largest.
Antinode
Decay constant
Activity
Completely inelastic collision
38. A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.
Inclined plane
Tail
Torque
Direction
39. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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40. 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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41. An electromagnetic wave of very high frequency.
Mass defect
Instantaneous velocity
Gamma ray
Nuclear fission
42. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Axis of rotation
Conservation of Angular Momentum
Alpha decay
Vertex
43. The force transmitted along a rope or cable.
Kepler's Third Law
Mole
Tension force
Photoelectric effect
44. The phenomenon of light bouncing off a surface - such as a mirror.
Half
Moment of inertia
Reflection
Rotational motion
45. A vector quantity defined as the rate of change of the velocity vector with time.
Pulley
Acceleration
Quark
Frictional force
46. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Newton's First Law
Half
Weak nuclear force
Displacement
47. The energy of a particle rotating around an axis.
Celsius
Rotational kinetic energy
Coefficient of volume expansion
Electron
48. To every action - there is an equal and opposite reaction. If an object A exerts a force on another object B - B will exert on A a force equal in magnitude and opposite in direction to the force exerted by A.
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49. For a gas held at constant pressure - temperature and volume are directly proportional.
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50. 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
Neutrino
Second Law of Thermodynamics
Right-hand rule
Refracted ray