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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 state of a nonrotating object upon whom the net torque acting is zero.
Dynamics
Equilibrium
Thermal equilibrium
Dispersion
2. For a gas held at constant pressure - temperature and volume are directly proportional.
3. 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
Latent heat of vaporization
Mechanical energy
Kepler's Third Law
4. The number - N - of neutrons in an atomic nucleus.
Neutron number
Oscillation
Critical angle
Destructive interference
5. Given the trajectory of an object or system - the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force - the center of mass is the poin
Center of mass
Diffraction grating
Strong nuclear force
Real image
6. A constant in the numerator of a formula.
Constant of proportionality
Sine
Coefficient of kinetic friction
Gravitational Potential Energy
7. The name of an electron released from the surface of a metal due to the photoelectric effect.
Angular frequency
Photoelectron
Fundamental
Beats
8. A transverse traveling wave created by the oscillations of an electric field and a magnetic field. Electromagnetic waves travel at the speed of light - m/s. Examples include microwaves - X rays - and visible light.
Angular displacement
Crest
Diffraction
Electromagnetic wave
9. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Constructive interference
Boiling point
Magnification
Deposition
10. When a solid - liquid - or gas changes into another phase of matter.
Normal
Neutron
Phase change
Rutherford nuclear model
11. 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.
Translational motion
Mass number
Decay constant
Amplitude
12. The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction - fission or fusion is rapidly transferred to a large number of atoms - releasing tremendous amounts of ene
Chain reaction
Significant digits
Tail
Newton
13. 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.
Atom
Unit vector
Beta decay
Angular acceleration
14. Kinematics is the study and description of the motion of objects.
Force
Kinematics
Inertia
Incident ray
15. 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.
Work
Transformer
Sublimation
Medium
16. The net change - - in a point's angular position - . It is a scalar quantity.
Angular displacement
Constructive interference
Thermal energy
Compression
17. 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.
Distance
Equilibrium position
Angular displacement
Significant digits
18. The two shorter sides of a right triangle that meet at the right angle.
Newton's Third Law
Legs
Incident ray
Neutron number
19. An object cannot be cooled to absolute zero.
Normal
Static friction
Angle of reflection
Third Law of Thermodynamics
20. Heat transfer via the mass movement of molecules.
Neutron
Convection
Mass number
Angle of reflection
21. 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.
Index of refraction
Concave mirror
Phase
System
22. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Doppler shift
Harmonic series
Focal point
Proton
23. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Oscillation
Optics
Angular acceleration
Nucleus
24. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Kepler's Third Law
Center of curvature
Rotational motion
Mechanical energy
25. 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.
Latent heat of transformation
Instantaneous velocity
Conservation of Angular Momentum
Radiation
26. The separation of different color light via refraction.
Elastic collision
Dispersion
Center of mass
Frequency
27. The angle between a reflected ray and the normal.
Mass
Angle of reflection
Nuclear fission
Tip
28. An image created by a mirror or lens in such a way that light does not actually come from where the image appears to be.
Virtual image
Principal axis
Mass defect
Snell's Law
29. The longest side of a right triangle - opposite to the right angle.
Newton's Third Law
Hypotenuse
Newton's Second Law
Newton's Law of Universal Gravitation
30. 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
Speed
Latent heat of fusion
Inertial reference frame
Refracted ray
31. 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 -
Focal length
Angular velocity
Kinetic friction
Compression
32. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Radioactive decay
Celsius
Entropy
Radian
33. Heat transfer by molecular collisions.
Conservation of Angular Momentum
Mutual Induction
Conduction
Threshold frequency
34. 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
Unit vector
Angular frequency
Directly proportional
Coherent light
35. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Kinetic energy
Electric generator
Unit vector
Harmonic series
36. A unit vector is a vector with length 1.
Thermal energy
Second Law of Thermodynamics
Convection
Unit vector
37. An electromagnetic wave of very high frequency.
Weak nuclear force
Gamma ray
Radiation
Isolated system
38. The force that binds protons and neutrons together in the atomic nucleus.
Total internal reflection
Pitch
Strong nuclear force
Decibel
39. A scale for measuring temperature - defined such that 0K is the lowest theoretical temperature a material can have. 273K = 0ºC.
Tail
Rutherford nuclear model
Chain reaction
Kelvin
40. 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
Force
Constant of proportionality
Cross product
Inclined plane
41. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Restoring force
Trough
Sublimation
Coefficient of linear expansion
42. A means of defining the direction of the cross product vector. To define the direction of the vector - position your right hand so that your fingers point in the direction of A - and then curl them around so that they point in the direction of B. Th
Kepler's Third Law
Ground state
Right-hand rule
Hertz (Hz)
43. The position - of an object according to a co-ordinate system measured in s of the angle of the object from a certain origin axis. Conventionally - this origin axis is the positive x-axis.
Angular position
Kepler's Second Law
Optics
Superposition
44. A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.
Coefficient of kinetic friction
Inelastic collision
Spectroscope
Coefficient of linear expansion
45. 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
Frictional force
Spring constant
Angular momentum
Amplitude
46. 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
Incident ray
Optics
Gamma ray
Displacement
47. Two materials are in thermal equilibrium if they are at the same temperature.
Inelastic collision
Photon
Thermal equilibrium
Mass number
48. The path of each planet around the sun is an ellipse with the sun at one focus.
49. A conserved scalar quantity associated with the state or condition of an object or system of objects. We can roughly define energy as the capacity for an object or system to do work. There are many different types of energy - such as kinetic energy -
Conservation of momentum
Angular frequency
Hertz (Hz)
Energy
50. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Concave mirror
Electromagnetic induction
Instantaneous velocity
Electromagnetic spectrum