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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.
Magnification
Meson
Distance
Elastic collision
2. A push or a pull that causes an object to accelerate.
Normal
Meson
Force
Third Law of Thermodynamics
3. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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4. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.
Electronvolt
Threshold frequency
Atom
Kinetic theory of gases
5. In a right triangle - the sine of a given angle is the length of the side opposite the angle divided by the length of the hypotenuse.
Magnitude
Sine
Power
Force
6. A machine that operates by taking heat from a hot place - doing some work with that heat - and then exhausting the rest of the heat into a cool place. The internal combustion engine of a car is an example of a heat engine.
Tension force
Heat engine
Equilibrium
Entropy
7. 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
Period
Kepler's Third Law
Elastic collision
Cycle
8. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Angular period
Tangent
Virtual image
Free
9. A system that no external net force acts upon. Objects within the system may exert forces upon one another - but they cannot receive any impulse from outside forces. Momentum is conserved in isolated systems.
Isolated system
Hypotenuse
Completely inelastic collision
Angle of refraction
10. 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.
Magnitude
Hertz (Hz)
Speed
Conservation of momentum
11. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Directly proportional
Neutron number
Inertia
Loudness
12. The joule (J) is the unit of work and energy. A joule is 1 N · m or 1 kg · m2/s2.
Isotope
Basis vector
Principal axis
Joule
13. 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.
Sound
Simple harmonic oscillator
Work
Radian
14. Represented by R = 8.31 J/mol · K - the universal gas constant fits into the ideal gas law so as to relate temperature to the average kinetic energy of gas molecules.
Convex lens
Universal gas constant
Radioactive decay
Scalar
15. 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
Power
Mutual Induction
Angular velocity
Sine
16. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Polarization
Significant digits
Scalar
Uncertainty principle
17. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.
Isotope
Center of curvature
Electromagnetic wave
Magnetic flux
18. A mirror that is curved such that its center is closer to the viewer than the edges - such as a doorknob. Convex mirrors reflect light away from a focal point.
Melting point
Impulse
Convex mirror
Refraction
19. A rough approximation of how gases work - that is quite accurate in everyday conditions. According to the kinetic theory - gases are made up of tiny - round molecules that move about in accordance with Newton's Laws - and collide with one another and
Kinetic theory of gases
Radian
Concave lens
Magnetic flux
20. The line that every particle in the rotating rigid body circles about.
Axis of rotation
Angular frequency
Cosine
Phase change
21. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Loudness
Hooke's Law
Boiling point
Rutherford nuclear model
22. States that the current induced in a circuit by a change in magnetic flux is in the direction that will oppose that change in flux. Using the right-hand rule - point your thumb in the opposite direction of the change in magnetic flux. The direction y
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23. 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.
Work function
Newton's First Law
Focal length
Second Law of Thermodynamics
24. The points of maximum negative displacement along a wave. They are the opposite of wave crests.
Weightlessness
Trough
Traveling waves
Vector
25. Two materials are in thermal equilibrium if they are at the same temperature.
Elastic collision
Antinode
Thermal equilibrium
Gamma decay
26. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Direction
Dynamics
Convex mirror
27. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Tail
Equilibrium position
Significant digits
Standing wave
28. The stable position of a system where the net force acting on the object is zero.
Weber
Equilibrium position
Directly proportional
Minima
29. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Electron
Impulse
Gravitational constant
Newton
30. If two systems - A and B - are in thermal equilibrium and if B and C are also in thermal equilibrium - then systems A and C are necessarily in thermal equilibrium.
Center of curvature
Zeroth Law of Thermodynamics
Dynamics
Spring constant
31. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.
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32. The effect of force on rotational motion.
Node
Torque
Proton
Sublimation
33. 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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34. 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
Nuclear fission
Conservation of momentum
Normal force
Translational kinetic energy
35. The ray of light that is refracted through a surface into a different medium.
Refracted ray
Coefficient of static friction
Radiation
Planck's constant
36. 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
Faraday's Law
Diffraction grating
Medium
Angular momentum
37. The bending of light as it passes from one medium to another. Light refracts toward the normal when going from a less dense medium into a denser medium and away from the normal when going from a denser medium into a less dense medium.
Refraction
Uniform circular motion
Law of reflection
Inversely proportional
38. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Half
Photoelectric effect
Law of conservation of energy
Strong nuclear force
39. The number of cycles executed by a system in one second. Frequency is the inverse of period - f = 1/T. Frequency is measured in hertz - Hz.
Frequency
Normal
Newton's Law of Universal Gravitation
Pressure
40. 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
Bohr atomic model
Gamma ray
Thermal energy
Inclined plane
41. A measurement of a body's inertia - or resistance to being accelerated.
Newton
Fundamental
Mass
Efficiency
42. 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.
Work
Coefficient of volume expansion
Kinetic friction
Neutron number
43. When electromagnetic radiation shines upon a metal - the surface of the metal releases energized electrons. The way in which these electrons are released contradicts classical theories of electromagnetic radiation and supports the quantum view accord
Tangent
Photoelectric effect
Ground state
Velocity
44. For two given media - the smallest angle of incidence at which total internal reflection occurs.
Motional emf
Critical angle
Latent heat of sublimation
Chain reaction
45. The cosine of an angle in a right triangle is equal to the length of the side adjacent to the angle divided by the length of the hypotenuse.
Heat engine
Torque
Cosine
Legs
46. A wave with wave crests that propagate down the length of the medium - in contrast to stationary standing waves. The velocity at which a crest propagates is called the wave speed.
Kepler's First Law
Traveling waves
Basis vector
Static friction
47. 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.
Polarization
Electromagnetic wave
Induced current
Weber
48. An electromagnetic wave of very high frequency.
Rotational motion
Kinematic equations
Gamma ray
Chain reaction
49. A mirror that is curved such that its center is farther from the viewer than the edges - such as the front of a spoon. Concave mirrors reflect light through a focal point.
Basis vector
Concave mirror
Potential energy
Pascals
50. The phenomenon of light bouncing off a surface - such as a mirror.
Weightlessness
Kepler's First Law
Reflection
Rarefaction