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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 units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Electronvolt
Activity
Hertz (Hz)
Electromagnetic wave
2. A logorithmic unit for measuring the volume of sound - which is the square of the amplitude of sound waves.
Latent heat of sublimation
Mass number
Decibel
Isolated system
3. Another word for the frequency of a sound wave.
Heat
Pitch
Pendulum
Kinetic friction
4. The sum of a system's potential and kinetic energy. In many systems - including projectiles - pulleys - pendulums - and motion on frictionless surfaces - mechanical energy is conserved. One important type of problem in which mechanical energy is not
Mechanical energy
Inelastic collision
Coherent light
Rarefaction
5. 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
Neutron number
Coefficient of volume expansion
Uncertainty principle
6. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Electromagnetic spectrum
Electromagnetic induction
Temperature
Cosine
7. A transfer of thermal energy from one system to another.
Coefficient of kinetic friction
Heat transfer
Directly proportional
Vector
8. 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
Electromagnetic spectrum
Sound
Center of mass
Photon
9. Light such that all of the associated waves have the same wavelength and are in phase.
Magnification
Rigid body
Newton's Law of Universal Gravitation
Coherent light
10. The bending of light as it passes from one medium to another. Light refracts toward the normal when going from a less dense medium into a denser medium and away from the normal when going from a denser medium into a less dense medium.
Kinematic equations
Inelastic collision
Refraction
Force
11. 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.
Inertia
Focal length
Isolated system
Temperature
12. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Angular momentum
Loudness
Nucleus
Incident ray
13. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Constant of proportionality
Inversely proportional
Law of conservation of energy
Spring
14. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Kinematic equations
Pendulum
Distance
Boyle's Law
15. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.
Cosine
Threshold frequency
Photon
Weightlessness
16. A collision in which both kinetic energy and momentum are conserved.
Transverse waves
Equilibrium position
Medium
Elastic collision
17. A vector quantity - L - that is the rotational analogue of linear momentum. For a single particle - the angular momentum is the cross product of the particle's displacement from the axis of rotation and the particle's linear momentum - . For a rigid
Total internal reflection
Angular momentum
Efficiency
Potential energy
18. A conserved scalar quantity associated with the state or condition of an object or system of objects. We can roughly define energy as the capacity for an object or system to do work. There are many different types of energy - such as kinetic energy -
Energy
Photoelectric effect
Restoring force
Superposition
19. A form of radioactivity where an excited atom releases a photon of gamma radiation - thereby returning to a lower energy state. The atomic structure itself does not change in the course of gamma radiation.
Hooke's Law
Bohr atomic model
Gamma decay
Ground state
20. The motion of a body in a circular path with constant speed.
Electromagnetic spectrum
Uniform circular motion
Second Law of Thermodynamics
Force
21. 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.
Newton
Beats
Radioactive decay
Nuclear fusion
22. 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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23. The current induced in a circuit by a change in magnetic flux.
Induced current
Quark
Pulley
Cross product
24. The path of each planet around the sun is an ellipse with the sun at one focus.
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25. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Centripetal force
Virtual image
Legs
Spring constant
26. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Melting point
Tail
Sublimation
Normal
27. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Momentum
Newton
Neutron number
Alpha particle
28. In an interference or diffraction pattern - the places where there is the most light.
Centripetal force
Maxima
Deposition
Isotope
29. Any vector can be expressed as the sum of two mutually perpendicular component vectors. Usually - but not always - these components are multiples of the basis vectors - and ; that is - vectors along the x-axis and y-axis. We define these two vectors
Pitch
Component
Newton
Electron
30. When an object is held in circular motion about a massive body - like a planet or a sun - due to the force of gravity - that object is said to be in orbit. Objects in orbit are in perpetual free fall - and so are therefore weightless.
Optics
Phase change
Orbit
Atomic number
31. 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 -
Gamma decay
Rarefaction
Medium
Third Law of Thermodynamics
32. 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.
Weight
Inversely proportional
Longitudinal waves
Sine
33. The energy associated with the configuration of bodies attracted to each other by the gravitational force. It is a measure of the amount of work necessary to get the two bodies from a chosen point of reference to their present position. This point of
Latent heat of sublimation
Simple harmonic oscillator
Pressure
Gravitational Potential Energy
34. 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.
Restoring force
Isolated system
Gamma ray
Half
35. 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.
Translational kinetic energy
Efficiency
Bohr atomic model
Pressure
36. Heat transfer by molecular collisions.
Conduction
Decibel
Isolated system
Constant of proportionality
37. The time - T - required for a rigid body to complete one revolution.
Right-hand rule
Tangent
Weak nuclear force
Angular period
38. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Ground state
Magnification
Coefficient of kinetic friction
Minima
39. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.
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40. The constant of proportionality in Newton's Law of Gravitation. It reflects the proportion of the gravitational force and - the product of two particles' masses divided by the square of the bodies' separation. N · m2/kg2.
Isotope
Momentum
Gravitational constant
Instantaneous velocity
41. The mass number - A - is the sum of the number of protons and neutrons in a nucleus. It is very close to the weight of that nucleus in atomic mass units.
Node
Right-hand rule
Mass number
Centripetal acceleration
42. 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.
Trough
Compression
Decay constant
Pulley
43. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Cross product
Nucleus
Latent heat of vaporization
Centripetal acceleration
44. 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.
Center of mass
Lenz's Law
Kinetic friction
Law of conservation of energy
45. 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
Spring constant
Frictional force
Proton
Period
46. States that the net work done on an object is equal to the object's change in kinetic energy.
Newton's First Law
Weak nuclear force
Neutrino
Work-energy theorem
47. The points of maximum negative displacement along a wave. They are the opposite of wave crests.
Longitudinal waves
Cycle
Distance
Trough
48. A small particle-like bundle of electromagnetic radiation.
Photon
Half
Speed
Newton's First Law
49. 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.
Angular acceleration
Displacement
Inelastic collision
Velocity
50. 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
Node
Superposition
Inversely proportional
Harmonic series