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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 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.
Beats
Antinode
Convex lens
Significant digits
2. The tendency of an object to remain at a constant velocity - or its resistance to being accelerated. Newton's First Law is alternatively called the Law of Inertia because it describes this tendency.
Inertia
Potential energy
Rotational kinetic energy
Work
3. 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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4. In reference to oscillation - amplitude is the maximum displacement of the oscillator from its equilibrium position. Amplitude tells how far an oscillator is swinging back and forth. In periodic motion - amplitude is the maximum displacement in each
Kinetic theory of gases
Faraday's Law
Amplitude
Spectroscope
5. 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
Planck's constant
Transverse waves
Gravitational Potential Energy
6. The angle between a refracted ray and the line normal to the surface.
Total internal reflection
Angle of refraction
Latent heat of vaporization
Coefficient of linear expansion
7. An electromagnetic wave of very high frequency.
Mass number
Gamma ray
Newton
Angular velocity
8. F = ma. The net force - F - acting on an object causes the object to accelerate - a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely proportional to the mass - m - of the object.
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9. The phenomenon of light bouncing off a surface - such as a mirror.
Radioactivity
Conduction
Normal force
Reflection
10. 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
Gold foil experiment
Neutrino
Standing wave
Cross product
11. 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.
Hooke's Law
Law of conservation of energy
Lenz's Law
Translational kinetic energy
12. 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.
Frictional force
Kinetic friction
Temperature
Atom
13. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Efficiency
Torque
Component
Incident ray
14. For an oscillating spring - the restoring force exerted by the spring is directly proportional to the displacement. That is - the more the spring is displaced - the stronger the force that will pull toward the equilibrium position. This law is expres
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15. 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.
Electromagnetic induction
Traveling waves
Focal length
Pascals
16. The state of a nonrotating object upon whom the net torque acting is zero.
Weak nuclear force
Equilibrium
Absolute zero
Index of refraction
17. An object that moves about a stable equilibrium point and experiences a restoring force that is directly proportional to the oscillator's displacement.
Cycle
Simple harmonic oscillator
Speed
Mass number
18. The center of a mirror or lens.
Latent heat of sublimation
Oscillation
Vertex
Diffraction grating
19. Heat transfer via the mass movement of molecules.
Convection
Reflection
Photoelectric effect
Latent heat of sublimation
20. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.
Magnification
Restoring force
Beta decay
Incident ray
21. 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.
Crest
Distance
Virtual image
Radioactive decay
22. 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
Antinode
Phase
Threshold frequency
Pitch
23. The principle stating that for any isolated system - linear momentum is constant with time.
Acceleration
Axis of rotation
De Broglie wavelength
Conservation of momentum
24. The name of an electron released from the surface of a metal due to the photoelectric effect.
Angular position
Photoelectron
Coefficient of kinetic friction
Rutherford nuclear model
25. A small particle-like bundle of electromagnetic radiation.
Photon
Vector
Lenz's Law
Angular velocity
26. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Scalar
Translational motion
Kelvin
Normal force
27. 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.
Moment of inertia
Standing wave
Traveling waves
Gamma decay
28. An object is called radioactive if it undergoes radioactive decay.
Reflect
Neutron
Radioactivity
Loudness
29. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Maxima
Beta particle
Uniform circular motion
Angle of reflection
30. The motion of a body in a circular path with constant speed.
Uniform circular motion
Entropy
Angular momentum
Hypotenuse
31. A constant in the numerator of a formula.
Simple harmonic oscillator
Gold foil experiment
Phase
Constant of proportionality
32. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Isolated system
Isotope
Incident ray
Nucleus
33. The stable position of a system where the net force acting on the object is zero.
Beats
Angular position
Equilibrium position
Sound
34. Energy associated with an object's position in space - or configuration in relation to other objects. This is a latent form of energy - where the amount of potential energy reflects the amount of energy that potentially could be released as kinetic e
Compression
Cycle
Potential energy
Mechanical energy
35. Waves that oscillate in the same direction as the propagation of the wave. Sound is carried by longitudinal waves - since the air molecules move back and forth in the same direction the sound travels.
Wavelength
Power
Longitudinal waves
Convection
36. An equation - PV = nRT - that relates the pressure - volume - temperature - and quantity of an ideal gas. An ideal gas is one that obeys the approximations laid out in the kinetic theory of gases.
Ideal gas law
Radian
Faraday's Law
Convex lens
37. An object cannot be cooled to absolute zero.
Third Law of Thermodynamics
Kinematic equations
Melting point
Polarization
38. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Gold foil experiment
Antinode
Chain reaction
Constructive interference
39. The net change - - in a point's angular position - . It is a scalar quantity.
Kinetic theory of gases
Angular displacement
Harmonic series
Magnetic flux
40. The angle between a reflected ray and the normal.
Dispersion
Radioactive decay
Angle of reflection
Coefficient of kinetic friction
41. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Inelastic collision
Cosine
Restoring force
Torque
42. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Decibel
Simple harmonic oscillator
Reflect
Sound
43. 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.
Induced current
Heat engine
Wavelength
Center of mass
44. 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
Pendulum
Kinetic theory of gases
Angular velocity
Node
45. 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
Specific heat
Newton's Third Law
Deposition
Reflection
46. 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.
Power
Atomic number
Cycle
Center of mass
47. 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
Dispersion
Inertial reference frame
Axis of rotation
Neutrino
48. 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.
Photoelectric effect
Work
Tangent
Cosine
49. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Boiling point
Tension force
Constant of proportionality
Kinetic theory of gases
50. 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.
Restoring force
Universal gas constant
Component
Convection