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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 five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Kinematic equations
Doppler shift
Total internal reflection
Kinematics
2. A negatively charged particle that orbits the nucleus of the atom.
Momentum
Electron
Newton
Isolated system
3. Atoms of the same element may have different numbers of neutrons and therefore different masses. Atoms of the same element but with different numbers of neutrons are called isotopes of the same element.
Angle of incidence
Margin of error
Isotope
Diffraction grating
4. The net change - - in a point's angular position - . It is a scalar quantity.
Neutron
Angular displacement
Coefficient of static friction
Newton's Second Law
5. The movement of a rigid body's center of mass in space.
Translational motion
Mole
Wavelength
Entropy
6. 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
Coherent light
Proton
Specific heat
Concave mirror
7. A unit of measurement for energy on atomic levels. 1 eV = J.
Dot product
Weak nuclear force
Electronvolt
Reflected ray
8. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Boiling point
Concave lens
Dot product
Celsius
9. 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.
Axis of rotation
Convex lens
Photon
Deposition
10. Essentially a restatement of energy conservation - it states that the change in the internal energy of a system is equal to the heat added plus the work done on the system.
Latent heat of sublimation
First Law of Thermodynamics
Minima
Neutrino
11. 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.
Gravitational constant
Newton's First Law
Newton's Second Law
Equilibrium
12. 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.
Latent heat of transformation
System
Absolute zero
Frictional force
13. A vector quantity - - that reflects the change of angular displacement with time - and is typically given in units of rad/s. To find the direction of the angular velocity vector - take your right hand and curl your fingers along the particle or body
Angular velocity
Induced current
Velocity
Acceleration
14. 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.
Traveling waves
Decay constant
Phase
Potential energy
15. The energy of the molecules that make up an object. It is related to heat - which is the amount of energy transferred from one object to another object that is a different temperature.
Speed
Frequency
Thermal energy
Ground state
16. When a solid - liquid - or gas changes into another phase of matter.
Phase change
Free
Angular momentum
Internal energy
17. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Rotational kinetic energy
Sine
Deposition
Electromagnetic spectrum
18. 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
Normal force
Heat
Angular frequency
19. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Weak nuclear force
Absolute zero
Michelson-Morley experiment
20. 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
Isolated system
Wave
Bohr atomic model
Angular frequency
21. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Scalar
Angular acceleration
Heat transfer
Coefficient of volume expansion
22. The unit of magnetic flux - equal to one T · m2.
Traveling waves
Standing wave
Weber
Thermal equilibrium
23. A scalar quantity that tells us how fast an object is moving. It measures the rate of change in distance over time. Speed is to be contrasted with velocity in that there is no direction associated with speed.
Speed
Neutron
Momentum
Phase
24. 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
Gamma ray
Trough
Beta decay
Angular momentum
25. 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.
Hertz (Hz)
Second Law of Thermodynamics
Real image
Atom
26. Light such that all of the associated waves have the same wavelength and are in phase.
Coherent light
Heat transfer
Weber
Tension force
27. The angle between a reflected ray and the normal.
Boiling point
Angular velocity
Angle of reflection
Weber
28. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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29. 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
Latent heat of fusion
Mass
Diffraction grating
30. The energy of a particle rotating around an axis.
Boyle's Law
Law of reflection
Rotational kinetic energy
Principal axis
31. 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.
Heat
Latent heat of transformation
Significant digits
Snell's Law
32. A vector quantity - equal to the rate of change of the angular velocity vector with time. It is typically given in units of rad/s2.
Weightlessness
Alpha decay
Critical angle
Angular acceleration
33. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.
Electron
System
Pulley
Center of curvature
34. 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 -
Antinode
Focal point
Energy
Translational kinetic energy
35. 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
Sine
Cosine
Focal point
Absolute zero
36. A unit vector is a vector with length 1.
Normal force
Unit vector
Newton's Third Law
Photoelectron
37. 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 -
Neutron number
Cosine
Compression
Latent heat of sublimation
38. 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.
Angular frequency
Translational kinetic energy
Focal length
Concave mirror
39. Heat transfer via electromagnetic waves.
Radiation
Cosine
Frictional force
Universal gas constant
40. 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
Entropy
Mechanical energy
Right-hand rule
Kelvin
41. The amount of heat necessary for a material undergoing sublimation to make a phase change from gas to solid or solid to gas - without a change in temperature.
Snell's Law
Latent heat of sublimation
Speed
Constant of proportionality
42. 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.
Hooke's Law
Gamma decay
Simple harmonic oscillator
Angular acceleration
43. The state of a nonrotating object upon whom the net torque acting is zero.
Potential energy
Tip
Equilibrium
Reflection
44. 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
Spring constant
Displacement
Atomic number
Inelastic collision
45. The amount heat necessary to cause a substance to undergo a phase transition.
Work
Latent heat of transformation
Mass defect
Rotational kinetic energy
46. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Uniform circular motion
Rigid body
Work-energy theorem
Electric generator
47. A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.
Refraction
Magnification
Universal gas constant
Coefficient of linear expansion
48. 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
Neutrino
Cross product
Force
Instantaneous velocity
49. A process that aligns a wave of light to oscillate in one dimension rather than two.
Polarization
Kinetic friction
Legs
Coefficient of static friction
50. A rigid body's resistance to being rotated. The moment of inertia for a single particle is MR2 - where M is the mass of the rigid body and R is the distance to the rotation axis. For rigid bodies - calculating the moment of inertia is more complicate
Inelastic collision
Potential energy
Decibel
Moment of inertia