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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 measure of force per unit area. Pressure is measured in N/m2 or Pa.
Mutual Induction
Mass defect
Centripetal acceleration
Pressure
2. The effect of force on rotational motion.
Amplitude
Isotope
Torque
Atomic number
3. 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.
Right-hand rule
De Broglie wavelength
Weightlessness
Scalar
4. 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.
Center of curvature
Basis vector
Gravitational Potential Energy
Sine
5. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Phase change
Temperature
Wavelength
Weak nuclear force
6. For two given media - the smallest angle of incidence at which total internal reflection occurs.
Critical angle
Kepler's First Law
Principal axis
Reflected ray
7. 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 -
Rutherford nuclear model
Diffraction grating
Temperature
Rarefaction
8. 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
Pendulum
Directly proportional
Transformer
Work
9. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Weightlessness
Isolated system
Kinetic friction
Mass defect
10. 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).
Weak nuclear force
Centripetal acceleration
Radian
Optics
11. A vector quantity - equal to the rate of change of the angular velocity vector with time. It is typically given in units of rad/s2.
Angular acceleration
Temperature
Photoelectron
Refraction
12. The energy of a particle rotating around an axis.
Neutrino
Cycle
Rotational kinetic energy
Tip
13. A collision in which the colliding particles stick together.
Completely inelastic collision
Concave mirror
Transformer
System
14. 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
Phase
Inversely proportional
Kinematic equations
15. The amount heat necessary to cause a substance to undergo a phase transition.
Latent heat of transformation
Radioactivity
Tail
Hypotenuse
16. Essentially a restatement of energy conservation - it states that the change in the internal energy of a system is equal to the heat added plus the work done on the system.
Chain reaction
First Law of Thermodynamics
Node
Heat
17. The state of a nonrotating object upon whom the net torque acting is zero.
Equilibrium
Transformer
Margin of error
Reflected ray
18. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Quark
Joule
Virtual image
Convection
19. The amount of error that's possible in a given measurement.
Elastic collision
Vector
Margin of error
Sine
20. 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
Electromagnetic wave
Pendulum
Total internal reflection
21. 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.
Concave lens
Centripetal acceleration
Energy
Momentum
22. 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.
Decay constant
Translational kinetic energy
Angle of refraction
Third Law of Thermodynamics
23. Light such that all of the associated waves have the same wavelength and are in phase.
Coherent light
Coefficient of linear expansion
Oscillation
Tension force
24. 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
Rarefaction
Directly proportional
Second Law of Thermodynamics
Joule
25. 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.
Ground state
Rigid body
Universal gas constant
Transverse waves
26. The property by which a charge moving in a magnetic field creates an electric field.
Latent heat of fusion
Electromagnetic induction
Transverse waves
Angle of refraction
27. 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.
Gamma decay
Total internal reflection
Atom
Zeroth Law of Thermodynamics
28. 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.
Charles's Law
Angle of incidence
Convex mirror
Scalar
29. 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.
Electromagnetic spectrum
Center of mass
Isolated system
Tip
30. The property by which a changing current in one coil of wire induces an emf in another.
Lenz's Law
Temperature
Mutual Induction
Medium
31. The amount of heat of a material required to raise the temperature of either one kilogram or one gram of that material by one degree Celsius. Different units may be used depending on whether specific heat is measured in s of grams or kilograms - and
Centripetal acceleration
Specific heat
Pendulum
Cycle
32. 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
Moment of inertia
Charles's Law
Gravitational constant
Nuclear fission
33. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Wavelength
Momentum
Conservation of Angular Momentum
Radioactive decay
34. Kinematics is the study and description of the motion of objects.
Gamma decay
Kinematics
Equilibrium
Atomic number
35. A nuclear reaction that takes place only at very high temperatures. Two light atoms - often hydrogen - fuse together to form a larger single atom - releasing a vast amount of energy in the process.
Significant digits
Kinetic energy
Nuclear fusion
Pendulum
36. The ratio of the size of the image produced by a mirror or lens to the size of the original object. This number is negative if the image is upside-down.
Radiation
Angular frequency
Magnification
Kinematics
37. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.
Angle of reflection
Neutrino
Absolute zero
Oscillation
38. The number - N - of neutrons in an atomic nucleus.
Moment of inertia
Neutron number
Magnification
Celsius
39. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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40. A unit of measurement for energy on atomic levels. 1 eV = J.
Planck's constant
Mutual Induction
Electronvolt
Vector
41. 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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42. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Concave lens
Vector
Loudness
Component
43. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Compression
Coefficient of linear expansion
Dynamics
Potential energy
44. A transfer of thermal energy from one system to another.
Heat transfer
Mutual Induction
Coefficient of kinetic friction
Atomic number
45. 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.
Impulse
Static friction
Spring
Coefficient of static friction
46. There are a few versions of this law. One is that heat flows spontaneously from hot to cold - but not in the reverse direction. Another is that there is no such thing as a 100% efficient heat engine. A third states that the entropy - or disorder - of
Total internal reflection
Free
Amplitude
Second Law of Thermodynamics
47. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Superposition
Weber
Electric generator
Electromagnetic wave
48. An object that moves about a stable equilibrium point and experiences a restoring force that is directly proportional to the oscillator's displacement.
Simple harmonic oscillator
Radian
Entropy
Third Law of Thermodynamics
49. 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.
Medium
Spring
Specific heat
De Broglie wavelength
50. In an interference or diffraction pattern - the places where there is the most light.
Angular frequency
Coherent light
Maxima
Sound