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Test your basic knowledge |
SAT Subject Test: hysics
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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 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
Electromagnetic wave
Wavelength
Zeroth Law of Thermodynamics
Harmonic series
2. F = ma. The net force - F - acting on an object causes the object to accelerate - a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely proportional to the mass - m - of the object.
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3. 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
Superposition
Beats
Universal gas constant
Oscillation
4. The speed at which a wave crest or trough propagates. Note that this is not the speed at which the actual medium (like the stretched string or the air particles) moves.
Photoelectric effect
Dot product
Weber
Wave speed
5. The points midway between nodes on a standing wave - where the oscillations are largest.
Coefficient of linear expansion
Principal axis
Antinode
Cross product
6. The amount of error that's possible in a given measurement.
Margin of error
Medium
Concave mirror
Proton
7. Two materials are in thermal equilibrium if they are at the same temperature.
Weak nuclear force
Electron
Index of refraction
Thermal equilibrium
8. A measurement of a body's inertia - or resistance to being accelerated.
Mass
Displacement
Activity
Inertia
9. A transfer of thermal energy from one system to another.
Gamma ray
Cosine
Heat transfer
Frequency
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.
Wavelength
Angular displacement
Refraction
Unit vector
11. An electromagnetic wave of very high frequency.
Tail
Mass defect
Power
Gamma ray
12. 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
Specific heat
Potential energy
Refraction
13. 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.
Spectroscope
Photoelectric effect
Acceleration
Work
14. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Reflection
Joule
Oscillation
Second Law of Thermodynamics
15. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Refracted ray
Photoelectric effect
Free
Longitudinal waves
16. The effect of force on rotational motion.
Beta particle
Completely inelastic collision
Torque
Half
17. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Polarization
Angular position
Collision
Pressure
18. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Kepler's Second Law
Significant digits
Mass defect
Weber
19. The property by which a changing current in one coil of wire induces an emf in another.
Work-energy theorem
Mutual Induction
Trough
Kepler's Third Law
20. 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.
Photoelectric effect
Momentum
Melting point
Crest
21. 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
Power
Second Law of Thermodynamics
Equilibrium position
Pulley
22. The substance that is displaced as a wave propagates through it. Air is the medium for sound waves - the string is the medium of transverse waves on a string - and water is the medium for ocean waves. Note that even if the waves in a given medium tra
Temperature
Alpha particle
Amplitude
Medium
23. The center of a mirror or lens.
Law of reflection
Angular frequency
Coherent light
Vertex
24. The cancellation of one wave by another wave that is exactly out of phase with the first. Despite the dramatic name of this phenomenon - nothing is "destroyed" by this interference—the two waves emerge intact once they have passed each other.
Momentum
Destructive interference
Newton's First Law
Spring constant
25. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Work function
Compression
Polarization
Center of mass
26. 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.
Momentum
Critical angle
Pressure
Coefficient of kinetic friction
27. An image created by a mirror or lens in such a way that light does actually come from where the image appears to be. If you place a screen in front of a real image - the image will be projected onto the screen.
Half
Radian
Maxima
Real image
28. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Michelson-Morley experiment
Angular acceleration
Instantaneous velocity
Kinetic energy
29. Given the period - T - and semimajor axis - a - of a planet's orbit - the ratio is the same for every planet.
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30. 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
Virtual image
Direction
Reflection
Cross product
31. The net change - - in a point's angular position - . It is a scalar quantity.
Angle of incidence
Angular displacement
Kepler's First Law
Component
32. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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33. The unit of magnetic flux - equal to one T · m2.
Normal force
Inversely proportional
Weber
Gamma decay
34. The longest side of a right triangle - opposite to the right angle.
Hypotenuse
Optics
Quark
Weightlessness
35. The dot product of the area and the magnetic field passing through it. Graphically - it is a measure of the number and length of magnetic field lines passing through that area. It is measured in Webers (Wb).
Isotope
Latent heat of vaporization
Magnetic flux
Neutrino
36. The movement of a rigid body's center of mass in space.
Atomic number
Mass defect
Translational motion
Neutron
37. The ray of light that is reflected from a mirror or other reflecting surface.
Velocity
Unit vector
Radiation
Reflected ray
38. 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.
Newton's Law of Universal Gravitation
Diffraction grating
Entropy
Scalar
39. In oscillation - a cycle occurs when an object undergoing oscillatory motion completes a "round-trip." For instance - a pendulum bob released at angle has completed one cycle when it swings to and then back to again. In period motion - a cycle is the
Vertex
Potential energy
Cycle
Internal energy
40. A machine that operates by taking heat from a hot place - doing some work with that heat - and then exhausting the rest of the heat into a cool place. The internal combustion engine of a car is an example of a heat engine.
Rutherford nuclear model
Electric generator
Kinetic energy
Heat engine
41. The current induced in a circuit by a change in magnetic flux.
Induced current
Thermal energy
Tip
Principal axis
42. 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 .
Translational motion
Dot product
Focal length
Universal gas constant
43. 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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44. The line that every particle in the rotating rigid body circles about.
Simple harmonic oscillator
Angular position
Axis of rotation
Nucleus
45. A vector quantity defined as the product of the force acting on a body multiplied by the time interval over which the force is exerted.
Coefficient of static friction
Weak nuclear force
Impulse
Mutual Induction
46. 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.
Basis vector
Law of reflection
Latent heat of fusion
Rigid body
47. 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.
Mole
Thermal energy
Crest
Radioactive decay
48. Heat transfer via electromagnetic waves.
Radiation
Tail
Snell's Law
Faraday's Law
49. 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.
Amplitude
Tip
Temperature
Electromagnetic wave
50. The number - N - of neutrons in an atomic nucleus.
Coherent light
Ground state
Neutron number
Angular momentum
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