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Test your basic knowledge |
SAT Subject Test: hysics
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Study First
Subjects
:
sat
,
science
,
physics
Instructions:
Answer 50 questions in 15 minutes.
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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. A coefficient that tells how much the volume of a solid will change when it is heated or cooled.
Lenz's Law
Bohr atomic model
Basis vector
Coefficient of volume expansion
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.
Quark
Doppler shift
Refracted ray
Inertia
3. 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
Kepler's First Law
Inversely proportional
Cycle
Cross product
4. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Nucleus
Radioactivity
Gamma decay
Law of conservation of energy
5. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Kepler's Second Law
Period
Efficiency
Basis vector
6. A vector quantity - commonly denoted by the vector s - which reflects an object's change in spatial position. The displacement vector points from the object's starting position to the object's current position in space. If an object is moved from poi
Meson
Gravitational Potential Energy
Weightlessness
Displacement
7. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Pitch
Quark
Translational kinetic energy
Rotational motion
8. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Hertz (Hz)
Static friction
Centripetal acceleration
Tip
9. An object is called radioactive if it undergoes radioactive decay.
Electromagnetic wave
Restoring force
Radioactivity
Hooke's Law
10. The center of a mirror or lens.
Collision
Inertial reference frame
Angle of refraction
Vertex
11. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Bohr atomic model
Oscillation
Energy
Nuclear fission
12. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.
Angular velocity
Polarization
Center of curvature
Orbit
13. The force that binds protons and neutrons together in the atomic nucleus.
Efficiency
Threshold frequency
Mole
Strong nuclear force
14. 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.
Power
Kinetic friction
Focal length
Gamma ray
15. An electromagnetic wave of very high frequency.
Work function
Threshold frequency
Harmonic series
Gamma ray
16. 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.
Radioactive decay
Lenz's Law
Heat engine
Tail
17. 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
Constant of proportionality
Snell's Law
Electronvolt
Frictional force
18. 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
Weak nuclear force
Reflect
Law of reflection
Direction
19. Kinematics is the study and description of the motion of objects.
Transverse waves
Kinematics
Right-hand rule
Frictional force
20. 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.
Restoring force
Atomic number
Completely inelastic collision
Crest
21. The separation of different color light via refraction.
Diffraction grating
Mole
Work function
Dispersion
22. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Torque
Quark
Electromagnetic spectrum
Pulley
23. 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).
Nucleus
Alpha decay
Work-energy theorem
Power
24. Also called a diverging lens - a lens that is thinner in the middle than at the edges. Concave lenses refract light away from a focal point.
Concave lens
Boyle's Law
Angular position
Pascals
25. A unit vector is a vector with length 1.
Unit vector
Equilibrium
Ground state
Gamma ray
26. The phenomenon of light bouncing off a surface - such as a mirror.
Pitch
Magnitude
Conservation of momentum
Reflection
27. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Electric generator
System
Wave
Static friction
28. The joule (J) is the unit of work and energy. A joule is 1 N · m or 1 kg · m2/s2.
Radioactive decay
Kelvin
Joule
Angle of reflection
29. The net change - - in a point's angular position - . It is a scalar quantity.
Mass
Angular displacement
Moment of inertia
Isolated system
30. A collision in which momentum is conserved but kinetic energy is not.
Inelastic collision
Incident ray
Beta decay
Activity
31. 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.
Kinetic energy
Angular frequency
Diffraction grating
Ideal gas law
32. A process that aligns a wave of light to oscillate in one dimension rather than two.
Proton
Momentum
Polarization
Meson
33. 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.
Basis vector
Boyle's Law
Refraction
Speed
34. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Power
Electric generator
Center of mass
Coefficient of volume expansion
35. 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.
Sine
Acceleration
Decay constant
Celsius
36. The dot product of the area and the magnetic field passing through it. Graphically - it is a measure of the number and length of magnetic field lines passing through that area. It is measured in Webers (Wb).
Loudness
Maxima
Magnetic flux
Meson
37. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Beta particle
Scalar
Weber
Centripetal acceleration
38. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Pulley
Pendulum
Angle of incidence
Isotope
39. 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.
Half
Zeroth Law of Thermodynamics
Weak nuclear force
Destructive interference
40. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Minima
Diffraction
Phase change
Weak nuclear force
41. 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.
Polarization
Isolated system
Incident ray
Completely inelastic collision
42. The energy of a particle rotating around an axis.
Meson
Inclined plane
Rotational kinetic energy
Heat transfer
43. The gravitational force exerted on a given mass.
Hypotenuse
Weight
Right-hand rule
Directly proportional
44. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Completely inelastic collision
First Law of Thermodynamics
Standing wave
Dynamics
45. 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
Crest
Phase
Nuclear fission
Celsius
46. A pendulum consists of a bob connected to a rod or rope. At small angles - a pendulum's motion approximates simple harmonic motion as it swings back and forth without friction.
Pendulum
Proton
Tension force
Momentum
47. A transfer of thermal energy from one system to another.
Newton's Law of Universal Gravitation
Heat transfer
Radiation
Work
48. The force of gravity - F - between two particles of mass and - separated by a distance r - has a magnitude of - where G is the gravitational constant. The force is directed along the line joining the two particles.
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49. The coefficient of static friction - for two materials is the constant of proportionality between the normal force and the maximum force of static friction. It is always a number between zero and one.
Internal energy
Compression
Coefficient of static friction
Scalar
50. 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.
Coefficient of kinetic friction
Boyle's Law
Tangent
Radian
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