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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. The reaction force of the ground - a table - etc. - when an object is placed upon it. The normal force is a direct consequence of Newton's Third Law: when an object is placed on the ground - the ground pushes back with the same force that it is pushe
Atom
Efficiency
Normal force
Equilibrium position
2. A transfer of thermal energy. We don't speak about systems "having" heat - but about their "transferring" heat - much in the way that dynamical systems don't "have" work - but rather "do" work.
Work-energy theorem
Latent heat of vaporization
Static friction
Heat
3. The amount of heat necessary to transform a solid at a given temperature into a liquid of the same temperature - or the amount of heat needed to be removed from a liquid of a given temperature to transform it into a solid of the same temperature.
Induced current
Velocity
Latent heat of fusion
Kinetic theory of gases
4. A collision in which momentum is conserved but kinetic energy is not.
Inelastic collision
Alpha decay
Pitch
Coefficient of volume expansion
5. With spherical mirrors - the center of the sphere of which the mirror is a part. All of the normals pass through it.
Center of curvature
Distance
Angular position
Convection
6. Light such that all of the associated waves have the same wavelength and are in phase.
Inversely proportional
Coherent light
Mass number
Hooke's Law
7. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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8. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Newton
Gravitational Potential Energy
Virtual image
Strong nuclear force
9. 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).
Power
Real image
Inversely proportional
Sine
10. 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.
Snell's Law
Heat
Energy
Uncertainty principle
11. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.
Photon
Threshold frequency
Inclined plane
Newton's Law of Universal Gravitation
12. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Concave mirror
Velocity
Latent heat of transformation
Rotational motion
13. 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
Amplitude
Angle of incidence
Constant of proportionality
14. Heat transfer by molecular collisions.
Conduction
Joule
Faraday's Law
Coherent light
15. Waves that oscillate in the same direction as the propagation of the wave. Sound is carried by longitudinal waves - since the air molecules move back and forth in the same direction the sound travels.
Longitudinal waves
Refracted ray
Potential energy
Work-energy theorem
16. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Isotope
Latent heat of sublimation
Neutrino
Sound
17. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Conduction
Bohr atomic model
Deposition
Neutron
18. 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.
Deposition
Newton
Angle of incidence
Momentum
19. 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.
Tail
Focal length
Translational kinetic energy
Inertia
20. 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.
Motional emf
Law of conservation of energy
Orbit
Activity
21. A vector quantity - - that reflects the change of angular displacement with time - and is typically given in units of rad/s. To find the direction of the angular velocity vector - take your right hand and curl your fingers along the particle or body
Photoelectron
Neutrino
Angular velocity
Elastic collision
22. An object cannot be cooled to absolute zero.
Work
Weber
Mass
Third Law of Thermodynamics
23. A particle - which consists of two protons and two neutrons. It is identical to the nucleus of a helium atom and is ejected by heavy particles undergoing alpha decay.
Kinematics
Alpha particle
Radiation
Crest
24. The line that every particle in the rotating rigid body circles about.
First Law of Thermodynamics
Axis of rotation
Torque
Kinematics
25. 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.
Convex lens
First Law of Thermodynamics
Atom
Phase change
26. 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
Chain reaction
Phase
Photoelectron
Kepler's Second Law
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.
Atom
Orbit
Isolated system
Quark
28. The index of refraction n = c/v of a substance characterizes the speed of light in that substance - v. It also characterizes - by way of Snell's Law - the angle at which light refracts in that substance.
Meson
Angular velocity
Oscillation
Index of refraction
29. 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.
Frequency
Alpha particle
Newton's First Law
Equilibrium
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 -
Pendulum
Rigid body
Rarefaction
Angle of reflection
31. 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.
Refracted ray
Wave speed
Gravitational constant
Magnification
32. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Mass
Tail
Translational kinetic energy
Electromagnetic spectrum
33. 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.
Conduction
Tension force
Significant digits
Destructive interference
34. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Centripetal acceleration
Longitudinal waves
Significant digits
Proton
35. A constant in the numerator of a formula.
Constant of proportionality
Universal gas constant
Angular frequency
Beats
36. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Electric generator
Spring
Calorie
Reflection
37. Two materials are in thermal equilibrium if they are at the same temperature.
Lenz's Law
Conservation of momentum
Thermal equilibrium
Coherent light
38. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Boiling point
Index of refraction
Spectroscope
Diffraction grating
39. The cosine of an angle in a right triangle is equal to the length of the side adjacent to the angle divided by the length of the hypotenuse.
Cosine
Focal point
Boiling point
Centripetal acceleration
40. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Michelson-Morley experiment
Kepler's Second Law
Gold foil experiment
Neutron
41. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Pitch
Wave
Gamma ray
Refracted ray
42. The net change - - in a point's angular position - . It is a scalar quantity.
Kepler's Third Law
Atomic number
Angular displacement
Rutherford nuclear model
43. The phenomenon by which light traveling from a high n to a low n material will reflect from the optical interface if the incident angle is greater than the critical angle.
Velocity
Magnetic flux
Rarefaction
Total internal reflection
44. The angle between a refracted ray and the line normal to the surface.
Free
Radioactivity
Pendulum
Angle of refraction
45. A class of elementary particle whose mass is between that of a proton and that of an electron. A common kind of meson is the pion.
Angle of refraction
Neutrino
Simple harmonic oscillator
Meson
46. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Electron
Transverse waves
Kinematic equations
Photon
47. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Work function
Efficiency
Amplitude
Newton's Second Law
48. A unit vector is a vector with length 1.
Wave speed
Tension force
Polarization
Unit vector
49. 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
Simple harmonic oscillator
Angular momentum
Gamma decay
50. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Heat transfer
Dynamics
Kinetic energy
Weak nuclear force
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