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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 amount of heat necessary for a material undergoing sublimation to make a phase change from gas to solid or solid to gas - without a change in temperature.
Joule
Latent heat of sublimation
Celsius
Translational kinetic energy
2. The number of cycles executed by a system in one second. Frequency is the inverse of period - f = 1/T. Frequency is measured in hertz - Hz.
Cycle
Newton's First Law
Frequency
Sine
3. A means of defining the direction of the cross product vector. To define the direction of the vector - position your right hand so that your fingers point in the direction of A - and then curl them around so that they point in the direction of B. Th
Induced current
Third Law of Thermodynamics
Right-hand rule
Translational kinetic energy
4. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Thermal equilibrium
Normal force
Critical angle
Tail
5. A vector quantity defined as the rate of change of the velocity vector with time.
Atom
Alpha decay
Acceleration
Sine
6. The two shorter sides of a right triangle that meet at the right angle.
Legs
Electromagnetic wave
Simple harmonic oscillator
Phase
7. The net change - - in a point's angular position - . It is a scalar quantity.
Mass number
Angular displacement
Rotational motion
Beta particle
8. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Half
Rigid body
Real image
Heat engine
9. 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
De Broglie wavelength
Refraction
Torque
Displacement
10. The property by which a charge moving in a magnetic field creates an electric field.
Kepler's First Law
Gamma ray
Electromagnetic induction
Alpha particle
11. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Beta particle
Tension force
Thermal equilibrium
Neutron
12. The number of digits that have been accurately measured. When combining several measurements in a formula - the resulting calculation can only have as many significant digits as the measurement that has the smallest number of significant digits.
Medium
First Law of Thermodynamics
Significant digits
Work
13. 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.
Ideal gas law
Transformer
Lenz's Law
Normal
14. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Focal length
Hertz (Hz)
Kinetic theory of gases
Centripetal force
15. A measure of the average kinetic energy of the molecules in a system. Temperature is related to heat by the specific heat of a given substance.
Entropy
Temperature
Decibel
Proton
16. The line that every particle in the rotating rigid body circles about.
Collision
Direction
Pendulum
Axis of rotation
17. An object that moves about a stable equilibrium point and experiences a restoring force that is directly proportional to the oscillator's displacement.
Collision
Simple harmonic oscillator
Newton
Kinetic friction
18. The position - of an object according to a co-ordinate system measured in s of the angle of the object from a certain origin axis. Conventionally - this origin axis is the positive x-axis.
Internal energy
Collision
Speed
Angular position
19. 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.
Kepler's First Law
Simple harmonic oscillator
De Broglie wavelength
Momentum
20. 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.
Force
Concave lens
Focal point
Coefficient of static friction
21. 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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22. The emf created by the motion of a charge through a magnetic field.
Dot product
Inertia
Kepler's Second Law
Motional emf
23. The velocity at any given instant in time. To be contrasted with average velocity - which is a measure of the change in displacement over a given time interval.
De Broglie wavelength
Trough
Newton
Instantaneous velocity
24. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Kepler's Second Law
Ground state
Hooke's Law
Elastic collision
25. 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
Moment of inertia
Threshold frequency
Hooke's Law
Distance
26. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Kinematic equations
Minima
Mutual Induction
Traveling waves
27. 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.
Concave lens
Latent heat of vaporization
Incident ray
Gold foil experiment
28. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Directly proportional
Constructive interference
Rotational motion
Celsius
29. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Radioactivity
Sound
Tangent
Photoelectric effect
30. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Quark
Kinematic equations
Isolated system
Electric generator
31. The amount of heat needed to raise the temperature of one gram of water by one degree Celsius. 1 cal = 4.19 J.
Calorie
Atomic number
Vector
Tension force
32. For a gas held at constant pressure - temperature and volume are directly proportional.
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33. Atoms of the same element may have different numbers of neutrons and therefore different masses. Atoms of the same element but with different numbers of neutrons are called isotopes of the same element.
Isotope
Wave speed
Decibel
Nucleus
34. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Wave
Kinetic friction
Alpha decay
Equilibrium position
35. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.
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36. 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.
Antinode
Traveling waves
Vertex
Transverse waves
37. 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.
Bohr atomic model
Translational kinetic energy
Crest
Minima
38. A transfer of thermal energy from one system to another.
Heat transfer
Second Law of Thermodynamics
Conservation of Angular Momentum
Standing wave
39. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.
Kinetic energy
Period
Center of curvature
Hooke's Law
40. 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
Kepler's Third Law
Concave mirror
Phase change
41. The current induced in a circuit by a change in magnetic flux.
Inertia
Component
Sine
Induced current
42. A collision in which both kinetic energy and momentum are conserved.
Center of curvature
Planck's constant
Elastic collision
Law of conservation of energy
43. 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 .
Dot product
Real image
Isotope
Chain reaction
44. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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45. An object that retains its overall shape - meaning that the particles that make up the rigid body stay in the same position relative to one another.
Work
Coefficient of kinetic friction
Rigid body
Polarization
46. A device that breaks incoming light down into spectral rays - so that one can see the exact wavelength constituents of the light.
Kepler's Second Law
Spectroscope
Magnetic flux
Latent heat of vaporization
47. 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
Spring
Planck's constant
Spring constant
Conservation of momentum
48. 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.
Newton's Second Law
Minima
Sine
Coherent light
49. 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
Period
Tangent
Michelson-Morley experiment
Focal point
50. 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
Doppler shift
Alpha decay
Neutrino
Angular acceleration