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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 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.
Equilibrium position
Convection
Translational kinetic energy
Kinematic equations
2. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Celsius
Distance
Centripetal force
Activity
3. Relates the angle of incidence to the angle of refraction: .
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4. For a gas held at constant pressure - temperature and volume are directly proportional.
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5. A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.
Cross product
Inclined plane
Kinematics
Gravitational constant
6. A small particle-like bundle of electromagnetic radiation.
Photon
Conservation of momentum
Refracted ray
Inversely proportional
7. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Minima
Moment of inertia
Law of conservation of energy
Mole
8. The line that every particle in the rotating rigid body circles about.
Mole
Isotope
Weightlessness
Axis of rotation
9. Linear momentum - p - commonly called "momentum" for short - is a vector quantity defined as the product of an object's mass - m - and its velocity - v.
Momentum
Nucleus
Magnitude
Incident ray
10. Defined as the rate at which work is done - or the rate at which energy is transformed. P is measured in joules per second (J/s) - or watts (W).
Tension force
Power
Work-energy theorem
Work function
11. If a line is drawn from the sun to the planet - then the area swept out by this line in a given time interval is constant.
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12. 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
Distance
Hooke's Law
Directly proportional
Proton
13. When two waves of slightly different frequencies interfere with one another - they produce a "beating" interference pattern that alternates between constructive (in-phase) and destructive (out-of-phase). In the case of sound waves - this sort of inte
Photoelectron
Beats
Inertial reference frame
Phase
14. An area of high air pressure that acts as the wave trough for sound waves. The spacing between successive rarefactions is the wavelength of sound - and the number of successive areas of rarefaction that arrive at the ear per second is the frequency -
Angular velocity
Bohr atomic model
Rarefaction
Real image
15. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Wave speed
Ground state
Torque
Half
16. The state of a nonrotating object upon whom the net torque acting is zero.
Angle of refraction
Equilibrium
Node
Pendulum
17. A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.
Mole
Coefficient of linear expansion
Quark
Constructive interference
18. 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.
Sound
Critical angle
Sine
Convex mirror
19. In a right triangle - the tangent of a given angle is the length of the side opposite the angle divided by the length of the side adjacent to the triangle.
Real image
Tangent
Medium
Collision
20. The mass number - A - is the sum of the number of protons and neutrons in a nucleus. It is very close to the weight of that nucleus in atomic mass units.
Radiation
Tail
Destructive interference
Mass number
21. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Critical angle
Mass defect
Work function
Michelson-Morley experiment
22. In an interference or diffraction pattern - the places where there is the least light.
Concave lens
Minima
Momentum
Pulley
23. 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.
Gamma decay
Temperature
Dot product
Power
24. Waves produced by a source that is moving with respect to the observer will seem to have a higher frequency and smaller wavelength if the motion is towards the observer - and a lower frequency and longer wavelength if the motion is away from the obse
Kepler's Second Law
Angular momentum
Doppler shift
Chain reaction
25. Any vector can be expressed as the sum of two mutually perpendicular component vectors. Usually - but not always - these components are multiples of the basis vectors - and ; that is - vectors along the x-axis and y-axis. We define these two vectors
Component
Cycle
Electron
Unit vector
26. 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
Superposition
Mechanical energy
Latent heat of vaporization
Vertex
27. The points of maximum displacement along a wave. In traveling waves - the crests move in the direction of propagation of the wave. The crests of standing waves - also called anti-nodes - remain in one place.
Dispersion
Conservation of Angular Momentum
Boyle's Law
Crest
28. An image created by a mirror or lens in such a way that light does actually come from where the image appears to be. If you place a screen in front of a real image - the image will be projected onto the screen.
Focal point
Loudness
Real image
Threshold frequency
29. A scale for measuring temperature - defined such that 0K is the lowest theoretical temperature a material can have. 273K = 0ºC.
Kelvin
Elastic collision
Zeroth Law of Thermodynamics
Faraday's Law
30. The center of a mirror or lens.
Center of curvature
Tension force
Equilibrium position
Vertex
31. A nuclear reaction in which a high-energy neutron bombards a heavy - unstable atomic nucleus - causing it to split into two smaller nuclei - and releasing some neutrons and a vast amount of energy at the same time
Motional emf
Nuclear fission
Transverse waves
Medium
32. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Normal
Dynamics
Crest
Tip
33. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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34. The force between two surfaces that are not moving relative to one another. The force of static friction is parallel to the plane of contact between the two objects and resists the force pushing or pulling on the object.
Static friction
Kinetic energy
Law of reflection
Angular period
35. 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.
Elastic collision
Newton's First Law
Universal gas constant
Magnitude
36. The longest side of a right triangle - opposite to the right angle.
Hypotenuse
Third Law of Thermodynamics
Beta decay
Collision
37. 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.
Mass defect
Heat
Atom
Basis vector
38. 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.
Decibel
Neutrino
Inertial reference frame
Orbit
39. A measurement of a body's inertia - or resistance to being accelerated.
Angular period
Heat transfer
Mass
Electromagnetic wave
40. A class of elementary particle whose mass is between that of a proton and that of an electron. A common kind of meson is the pion.
Melting point
Tangent
Meson
Wave speed
41. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.
Center of curvature
Acceleration
Restoring force
Boiling point
42. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Hypotenuse
Nuclear fusion
Dispersion
Scalar
43. A device made of two coils - which converts current of one voltage into current of another voltage. In a step-up transformer - the primary coil has fewer turns than the secondary - thus increasing the voltage. In a step-down transformer - the seconda
Transformer
Electromagnetic spectrum
Coefficient of linear expansion
Distance
44. The series of standing waves supported by a string with both ends tied down. The first member of the series - called the fundamental - has two nodes at the ends and one anti-node in the middle. The higher harmonics are generated by placing an integra
Heat transfer
Harmonic series
Decibel
Magnitude
45. 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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46. Another word for the frequency of a sound wave.
Significant digits
Charles's Law
Free
Pitch
47. 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
Transformer
Static friction
Normal
Moment of inertia
48. An object is called radioactive if it undergoes radioactive decay.
Radioactivity
Kelvin
Energy
Electron
49. For a reflected light ray - . In other words - a ray of light reflects of a surface in the same plane as the incident ray and the normal - and at an angle to the normal that is equal to the angle between the incident ray and the normal.
Activity
Isotope
Law of reflection
Index of refraction
50. The gravitational force exerted on a given mass.
Angular acceleration
Total internal reflection
Newton
Weight