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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 points midway between nodes on a standing wave - where the oscillations are largest.
Nuclear fission
Antinode
Oscillation
Activity
2. The joule (J) is the unit of work and energy. A joule is 1 N · m or 1 kg · m2/s2.
Joule
Weightlessness
Standing wave
Equilibrium position
3. 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.
Fundamental
Convex mirror
Acceleration
Spring constant
4. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Kelvin
Basis vector
Rigid body
Pascals
5. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Threshold frequency
Newton
Destructive interference
Kelvin
6. 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.
Frictional force
Radioactive decay
Gravitational constant
Strong nuclear force
7. 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.
Meson
Strong nuclear force
Third Law of Thermodynamics
Compression
8. The amount of error that's possible in a given measurement.
Static friction
Impulse
Margin of error
Rotational motion
9. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Concave mirror
Second Law of Thermodynamics
Proton
Chain reaction
10. When a light ray strikes a surface - the angle of incidence is the angle between the incident ray and the normal.
Angle of incidence
Law of conservation of energy
Reflected ray
Refracted ray
11. 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
Wave speed
Oscillation
Proton
12. 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.
Displacement
Spring
Decay constant
Isolated system
13. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Alpha particle
Pulley
Inelastic collision
Doppler shift
14. 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
Phase
Angular displacement
Normal
Mole
15. A transfer of thermal energy from one system to another.
Principal axis
Tangent
Centripetal force
Heat transfer
16. The study of the properties of visible light - i.e. - the portion of the electromagnetic spectrum with wavelengths between 360 and 780 nm (1 nm = m/s).
Restoring force
Focal point
Optics
Inertial reference frame
17. 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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18. 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
Free
Amplitude
Latent heat of vaporization
Reflection
19. Objects that experience oscillatory or simple harmonic motion when distorted. Their motion is described by Hooke's Law.
Reflection
Spring
Electron
Work-energy theorem
20. 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
Thermal equilibrium
Directly proportional
Convex mirror
21. 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
Focal point
Magnetic flux
Inversely proportional
Joule
22. The cancellation of one wave by another wave that is exactly out of phase with the first. Despite the dramatic name of this phenomenon - nothing is "destroyed" by this interference—the two waves emerge intact once they have passed each other.
Significant digits
Work function
Destructive interference
Hooke's Law
23. The gravitational force exerted on a given mass.
Displacement
Weight
Maxima
Angular period
24. A coefficient that tells how much the volume of a solid will change when it is heated or cooled.
Concave lens
Conservation of momentum
Elastic collision
Coefficient of volume expansion
25. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Radioactivity
Dynamics
Constructive interference
Newton's Law of Universal Gravitation
26. A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.
Kinetic theory of gases
Inclined plane
Translational motion
Alpha decay
27. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Half
Law of conservation of energy
Virtual image
Nuclear fission
28. The property of a vector that distinguishes it from a scalar: while scalars have only a magnitude - vectors have both a magnitude and a direction. When graphing vectors in the xy-coordinate space - direction is usually given by the angle measured cou
Uniform circular motion
Index of refraction
Reflection
Direction
29. A particle - which consists of two protons and two neutrons. It is identical to the nucleus of a helium atom and is ejected by heavy particles undergoing alpha decay.
Tension force
Angle of reflection
Alpha particle
Chain reaction
30. A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.
Equilibrium position
Heat
Conduction
Coefficient of linear expansion
31. 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).
Center of curvature
Convection
Vector
Power
32. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Inertia
Distance
Efficiency
Restoring force
33. 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.
Thermal energy
Meson
Beta particle
Third Law of Thermodynamics
34. States that the net work done on an object is equal to the object's change in kinetic energy.
Constructive interference
Inelastic collision
Work-energy theorem
Temperature
35. 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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36. Heat transfer via the mass movement of molecules.
Rigid body
De Broglie wavelength
Convection
Period
37. 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
Refraction
Planck's constant
Beats
Scalar
38. In an interference or diffraction pattern - the places where there is the least light.
Speed
Longitudinal waves
Cycle
Minima
39. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Electric generator
Center of mass
Inversely proportional
Quark
40. The number of hydrogen atoms in one gram of hydrogen - equal to . When counting the number of molecules in a gas - it is often convenient to count them in moles.
Ground state
Free
Medium
Mole
41. Kinematics is the study and description of the motion of objects.
Kinematics
Uniform circular motion
Conduction
Centripetal acceleration
42. A vector quantity defined as the rate of change of the velocity vector with time.
Weight
Acceleration
Inertia
Law of reflection
43. The unit of magnetic flux - equal to one T · m2.
Impulse
Weber
Speed
Electromagnetic induction
44. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Tension force
Isolated system
Deposition
Completely inelastic collision
45. 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.
Phase
Magnification
Law of reflection
Standing wave
46. The motion of a body in a circular path with constant speed.
Uniform circular motion
Melting point
Hooke's Law
Radius of curvature
47. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Hypotenuse
Kinematic equations
Sound
Angular position
48. A vector quantity defined as the rate of change of the displacement vector with time. It is to be contrasted with speed - which is a scalar quantity for which no direction is specified.
Velocity
Sound
Diffraction grating
Tension force
49. 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
Superposition
Harmonic series
Kinetic friction
Pulley
50. A force caused by the roughness of two materials in contact - deformations in the materials - and a molecular attraction between the materials. Frictional forces are always parallel to the plane of contact between two surfaces and opposite the direct
Fundamental
Vector
Internal energy
Frictional force