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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 ray of light that is refracted through a surface into a different medium.
Refracted ray
Direction
Momentum
Acceleration
2. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Minima
Inertial reference frame
Half
Wave speed
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. A wavelength - given by = h/mv - which is associated with matter. Louis de Broglie proposed the idea that matter could be treated as waves in 1923 and applied this theory successfully to small particles like electrons.
De Broglie wavelength
Cosine
Equilibrium position
Velocity
5. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Entropy
Inversely proportional
Dot product
Celsius
6. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Instantaneous velocity
Pressure
Kelvin
Sound
7. Heat transfer via electromagnetic waves.
Electromagnetic induction
Principal axis
Radiation
Charles's Law
8. The time it takes a system to pass through one cycle of its repetitive motion. The period - T - is the inverse of the motion's frequency - f = 1/T.
Period
Weak nuclear force
Doppler shift
Temperature
9. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Deposition
Weight
Coefficient of volume expansion
Static friction
10. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Free
Charles's Law
Electromagnetic induction
Isotope
11. Light such that all of the associated waves have the same wavelength and are in phase.
Equilibrium
Cross product
Third Law of Thermodynamics
Coherent light
12. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Latent heat of sublimation
Weber
Angle of reflection
Rotational motion
13. 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
Mass number
Bohr atomic model
Angular frequency
Coherent light
14. The model of the atom according to which negatively charged electrons orbit a positively charged nucleus. This model was developed by Ernest Rutherford in light of the results from his gold foil experiment.
Calorie
Dot product
Phase change
Rutherford nuclear model
15. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Conservation of momentum
Wavelength
Phase change
Decay constant
16. The straight line that runs through the focal point and the vertex of a mirror or lens.
Direction
Principal axis
Phase
Vertex
17. 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.
Kepler's Second Law
Motional emf
Absolute zero
Vector
18. The process by which unstable nuclei spontaneously release particles and/or energy so as to come to a more stable arrangement. The most common forms of radioactive decay are alpha decay - beta decay - and gamma decay.
Nuclear fission
Inertia
Radioactive decay
Pitch
19. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Decibel
Kinetic energy
Angle of incidence
Third Law of Thermodynamics
20. A process that aligns a wave of light to oscillate in one dimension rather than two.
Wave
Work-energy theorem
Polarization
Impulse
21. A form of radioactive decay where a heavy element emits an alpha particle and some energy - thus transforming into a lighter - more stable - element.
Pressure
Alpha decay
Latent heat of vaporization
Mutual Induction
22. In an interference or diffraction pattern - the places where there is the least light.
Thermal equilibrium
Legs
Normal
Minima
23. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Electric generator
First Law of Thermodynamics
Isolated system
Margin of error
24. The angle between a refracted ray and the line normal to the surface.
Law of reflection
Atom
Cosine
Angle of refraction
25. A scalar quantity. If an object is moved from point A to point B in space along path AB - the distance that the object has traveled is the length of the path AB. Distance is to be contrasted with displacement - which is simply a measure of the distan
Alpha decay
Critical angle
Deposition
Distance
26. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Latent heat of transformation
Translational motion
Boiling point
Planck's constant
27. 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
Coefficient of linear expansion
Spring constant
Angular position
Melting point
28. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Transformer
Nucleus
Diffraction grating
Magnitude
29. A transfer of thermal energy. We don't speak about systems "having" heat - but about their "transferring" heat - much in the way that dynamical systems don't "have" work - but rather "do" work.
Atom
Frequency
Heat
Sine
30. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Dynamics
Pulley
Traveling waves
Transformer
31. When a solid - liquid - or gas changes into another phase of matter.
Convection
Phase change
Photoelectron
Gamma decay
32. 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
Fundamental
Mechanical energy
Doppler shift
33. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Scalar
Gamma decay
Electromagnetic spectrum
Angular momentum
34. A property common to both vectors and scalars. In the graphical representation of a vector - the vector's magnitude is equal to the length of the arrow.
Cycle
Magnitude
Kinetic friction
Mass
35. A neutrally charged particle that - along with protons - constitutes the nucleus of an atom.
Concave mirror
Decibel
Neutron
Oscillation
36. Heat transfer by molecular collisions.
Cycle
Boiling point
Conduction
Impulse
37. 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.
Standing wave
Centripetal force
Speed
Constant of proportionality
38. The points midway between nodes on a standing wave - where the oscillations are largest.
Focal point
Translational motion
Antinode
Heat
39. Kinematics is the study and description of the motion of objects.
Joule
Dispersion
Crest
Kinematics
40. 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
Newton's First Law
Torque
Temperature
41. 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.
Induced current
Universal gas constant
Power
Convex lens
42. A sheet - film - or screen with a pattern of equally spaced slits. Typically the width of the slits and space between them is chosen to generate a particular diffraction pattern.
Coefficient of static friction
Bohr atomic model
Diffraction grating
Principal axis
43. The longest side of a right triangle - opposite to the right angle.
Coherent light
Electronvolt
Angular period
Hypotenuse
44. A form of vector multiplication - where two vectors are multiplied to produce a scalar. The dot product of two vectors - A and B - is expressed by the equation A · B = AB cos .
Newton
Temperature
Lenz's Law
Dot product
45. 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 -
Impulse
Angle of incidence
Direction
Energy
46. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Law of conservation of energy
Thermal equilibrium
Speed
Conduction
47. Two materials are in thermal equilibrium if they are at the same temperature.
Thermal equilibrium
Mutual Induction
Period
Concave mirror
48. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.
Electromagnetic spectrum
Moment of inertia
Beta decay
Weak nuclear force
49. When an object is held in circular motion about a massive body - like a planet or a sun - due to the force of gravity - that object is said to be in orbit. Objects in orbit are in perpetual free fall - and so are therefore weightless.
Scalar
Cross product
Orbit
Newton
50. The stable position of a system where the net force acting on the object is zero.
Reflected ray
Equilibrium position
Margin of error
Virtual image