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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 movement of a rigid body's center of mass in space.
Angle of refraction
Total internal reflection
Collision
Translational motion
2. The coefficient of kinetic friction - - for two materials is the constant of proportionality between the normal force and the force of kinetic friction. It is always a number between zero and one.
Coefficient of kinetic friction
Virtual image
Celsius
Gravitational constant
3. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Angular velocity
Mass
Internal energy
Sound
4. The amount heat necessary to cause a substance to undergo a phase transition.
Reflect
Frequency
Centripetal acceleration
Latent heat of transformation
5. 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.
Simple harmonic oscillator
De Broglie wavelength
Newton
Directly proportional
6. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Frequency
Photoelectric effect
Threshold frequency
Free
7. The energy of the molecules that make up an object. It is related to heat - which is the amount of energy transferred from one object to another object that is a different temperature.
Pascals
Electron
Electromagnetic spectrum
Thermal energy
8. States that the net work done on an object is equal to the object's change in kinetic energy.
Faraday's Law
Work-energy theorem
Significant digits
Kinematic equations
9. A model for the atom developed in 1913 by Niels Bohr. According to this model - the electrons orbiting a nucleus can only orbit at certain particular radii. Excited electrons may jump to a more distant radii and then return to their ground state - em
Energy
Maxima
Beta decay
Bohr atomic model
10. A scalar quantity that tells us how fast an object is moving. It measures the rate of change in distance over time. Speed is to be contrasted with velocity in that there is no direction associated with speed.
Angular position
Speed
Latent heat of sublimation
Significant digits
11. When electromagnetic radiation shines upon a metal - the surface of the metal releases energized electrons. The way in which these electrons are released contradicts classical theories of electromagnetic radiation and supports the quantum view accord
Isolated system
Spectroscope
Absolute zero
Photoelectric effect
12. The gravitational force exerted on a given mass.
Inelastic collision
Weber
Kepler's First Law
Weight
13. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Celsius
Faraday's Law
Nuclear fusion
Calorie
14. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Half
Angular displacement
Orbit
Longitudinal waves
15. 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
Restoring force
Displacement
Focal length
Angular position
16. 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
Magnitude
Specific heat
Motional emf
Coefficient of volume expansion
17. 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
Newton's Second Law
Directly proportional
Kinematics
Strong nuclear force
18. In reference to oscillation - amplitude is the maximum displacement of the oscillator from its equilibrium position. Amplitude tells how far an oscillator is swinging back and forth. In periodic motion - amplitude is the maximum displacement in each
Standing wave
Amplitude
Node
Mole
19. Two oscillators that have the same frequency and amplitude - but reach their maximum displacements at different times - are said to have different phases. Similarly - two waves are in phase if their crests and troughs line up exactly - and they are o
Longitudinal waves
Compression
Phase
Law of reflection
20. 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
Mass number
Beats
Doppler shift
Neutron
21. The unit of magnetic flux - equal to one T · m2.
Thermal equilibrium
Weber
Coefficient of linear expansion
Polarization
22. 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
Constant of proportionality
Nuclear fission
Harmonic series
Strong nuclear force
23. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Spring constant
Electromagnetic induction
Electric generator
Collision
24. The motion of a body in a circular path with constant speed.
Third Law of Thermodynamics
Uniform circular motion
Energy
Uncertainty principle
25. An electromagnetic wave of very high frequency.
Reflection
Rarefaction
Gamma ray
Vector
26. 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
Inertial reference frame
Translational motion
Conservation of Angular Momentum
27. A mirror that is curved such that its center is farther from the viewer than the edges - such as the front of a spoon. Concave mirrors reflect light through a focal point.
Radian
Reflected ray
Concave mirror
Latent heat of vaporization
28. The force that binds protons and neutrons together in the atomic nucleus.
Strong nuclear force
Convex lens
Activity
Internal energy
29. 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.
Real image
Speed
Threshold frequency
Cross product
30. A small particle-like bundle of electromagnetic radiation.
Pitch
Photon
Radioactive decay
Completely inelastic collision
31. 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
Radius of curvature
Moment of inertia
Mechanical energy
Tangent
32. Light such that all of the associated waves have the same wavelength and are in phase.
Coherent light
Angular position
Spring constant
Oscillation
33. In an interference or diffraction pattern - the places where there is the most light.
Tip
Maxima
Amplitude
Uncertainty principle
34. The ray of light that is refracted through a surface into a different medium.
Refracted ray
Compression
Sublimation
Inertia
35. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Work function
Vector
Work-energy theorem
Velocity
36. 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.
Wavelength
Wave
Focal length
Normal force
37. The disorder of a system.
Basis vector
Entropy
Focal point
Michelson-Morley experiment
38. The force of gravity - F - between two particles of mass and - separated by a distance r - has a magnitude of - where G is the gravitational constant. The force is directed along the line joining the two particles.
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39. A rough approximation of how gases work - that is quite accurate in everyday conditions. According to the kinetic theory - gases are made up of tiny - round molecules that move about in accordance with Newton's Laws - and collide with one another and
Electronvolt
Kinetic theory of gases
Wave speed
Angular acceleration
40. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Normal force
Superposition
Restoring force
Rarefaction
41. A transverse traveling wave created by the oscillations of an electric field and a magnetic field. Electromagnetic waves travel at the speed of light - m/s. Examples include microwaves - X rays - and visible light.
Right-hand rule
Medium
Legs
Electromagnetic wave
42. The force transmitted along a rope or cable.
Harmonic series
Pressure
Tension force
Inelastic collision
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.
Dynamics
Completely inelastic collision
Heat transfer
Destructive interference
44. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Superposition
Pascals
Amplitude
Speed
45. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Angular displacement
Charles's Law
Scalar
Absolute zero
46. A logorithmic unit for measuring the volume of sound - which is the square of the amplitude of sound waves.
Kepler's First Law
Angular displacement
Velocity
Decibel
47. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Radioactivity
Newton
Component
Hypotenuse
48. 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.
Angle of incidence
Absolute zero
Minima
Nuclear fusion
49. Energy associated with an object's position in space - or configuration in relation to other objects. This is a latent form of energy - where the amount of potential energy reflects the amount of energy that potentially could be released as kinetic e
Potential energy
Magnification
Angle of reflection
Uniform circular motion
50. The center of a mirror or lens.
Vertex
Radioactive decay
Isolated system
Latent heat of sublimation