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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. A wave on a string that is tied to a pole at one end will reflect back toward its source - producing a wave that is the mirror-image of the original and which travels in the opposite direction.
Medium
Gamma decay
Sublimation
Reflect
2. The amount of heat necessary to transform a liquid at a given temperature into a gas of the same temperature - or the amount of heat needed to be taken away from a gas of a given temperature to transform it into a liquid of the same temperature.
Radius of curvature
Latent heat of vaporization
Force
Moment of inertia
3. The angle between a reflected ray and the normal.
Angle of reflection
Latent heat of sublimation
Radian
Mass
4. The amount heat necessary to cause a substance to undergo a phase transition.
Latent heat of transformation
Minima
Tip
Critical angle
5. 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.
Crest
Inclined plane
Proton
Legs
6. Given the trajectory of an object or system - the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force - the center of mass is the poin
Standing wave
Center of mass
Hooke's Law
Minima
7. An object cannot be cooled to absolute zero.
Third Law of Thermodynamics
Wave
Equilibrium
Meson
8. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Magnitude
Pulley
Work-energy theorem
Angular position
9. A push or a pull that causes an object to accelerate.
Force
Celsius
Mutual Induction
Center of mass
10. 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.
Axis of rotation
Zeroth Law of Thermodynamics
Destructive interference
Ideal gas law
11. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Deposition
Standing wave
Boiling point
Angle of incidence
12. The distance between the focal point and the vertex of a mirror or lens. For concave mirrors and convex lenses - this number is positive. For convex mirrors and concave lenses - this number is negative.
Focal length
Margin of error
Rotational kinetic energy
Ideal gas law
13. The motion of a body in a circular path with constant speed.
Direction
Uniform circular motion
Photoelectric effect
Potential energy
14. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Latent heat of transformation
Coefficient of kinetic friction
Diffraction
Velocity
15. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Static friction
Sound
Convex lens
Proton
16. 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.
Virtual image
Latent heat of vaporization
Vertex
Spectroscope
17. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Charles's Law
Focal length
Mass defect
Tail
18. The ray of light that is refracted through a surface into a different medium.
Potential energy
Refracted ray
Pendulum
Normal force
19. Done when energy is transferred by a force. The work done by a force F in displacing an object by s is W = F · s.
Velocity
Weightlessness
Hertz (Hz)
Work
20. 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.
Total internal reflection
Scalar
Traveling waves
Antinode
21. The force transmitted along a rope or cable.
Law of reflection
Tension force
Inclined plane
Vector
22. 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.
Coefficient of static friction
Snell's Law
Constructive interference
Maxima
23. A vector quantity - or vector - is an object possessing - and fully described by - a magnitude and a direction. Graphically a vector is depicted as an arrow with its magnitude given by the length of the arrow and its direction given by where the arro
Photon
Vector
Rotational motion
Focal point
24. 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.
Decibel
Weak nuclear force
Margin of error
Decay constant
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
Kinematics
Chain reaction
Distance
Convection
26. The ray of light that is reflected from a mirror or other reflecting surface.
Reflected ray
Dispersion
Focal point
Coefficient of volume expansion
27. 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.
Convex lens
Meson
Electric generator
Diffraction grating
28. The emf created by the motion of a charge through a magnetic field.
Inversely proportional
Angular momentum
Pascals
Motional emf
29. 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.
Trough
Absolute zero
Boyle's Law
Rotational kinetic energy
30. 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 -
Concave mirror
Rarefaction
Atomic number
Michelson-Morley experiment
31. A negatively charged particle that orbits the nucleus of the atom.
Michelson-Morley experiment
Alpha decay
Wavelength
Electron
32. Also called a converging lens - a lens that is thicker in the middle than at the edges. Convex lenses refract light through a focal point.
Neutron number
Weber
Kepler's Third Law
Convex lens
33. The stable position of a system where the net force acting on the object is zero.
Reflected ray
Equilibrium position
Photoelectric effect
Incident ray
34. A unit of measurement for energy on atomic levels. 1 eV = J.
Kepler's Second Law
Electronvolt
Alpha decay
Compression
35. 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.
Angle of refraction
Planck's constant
Kinetic theory of gases
Atomic number
36. The experience of being in free fall. If you are in a satellite - elevator - or other free-falling object - then you have a weight of zero Newtons relative to that object.
Transverse waves
Joule
Weightlessness
Angular acceleration
37. Heat transfer via the mass movement of molecules.
Convection
Newton's First Law
Inertial reference frame
Normal force
38. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Rotational kinetic energy
Inertial reference frame
Centripetal force
Rotational motion
39. The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction - fission or fusion is rapidly transferred to a large number of atoms - releasing tremendous amounts of ene
Equilibrium
Photoelectric effect
Cosine
Chain reaction
40. 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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41. 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.
Rutherford nuclear model
Node
Completely inelastic collision
Radioactive decay
42. An object that moves about a stable equilibrium point and experiences a restoring force that is directly proportional to the oscillator's displacement.
Half
Law of reflection
Constructive interference
Simple harmonic oscillator
43. 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
Hypotenuse
Melting point
Beats
Amplitude
44. 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
Snell's Law
Cross product
First Law of Thermodynamics
Angle of reflection
45. The effect of force on rotational motion.
Conduction
Torque
Refraction
Diffraction
46. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Beta particle
Pitch
System
Radian
47. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Legs
Superposition
Convection
Ideal gas law
48. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Work-energy theorem
Threshold frequency
Completely inelastic collision
Kinetic energy
49. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Diffraction grating
Real image
Inertia
Ground state
50. A principle derived by Werner Heisenberg in 1927 that tells us that we can never know both the position and the momentum of a particle at any given time.
Coefficient of kinetic friction
Uncertainty principle
Beta decay
Equilibrium