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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 model of the atom according to which negatively charged electrons orbit a positively charged nucleus. This model was developed by Ernest Rutherford in light of the results from his gold foil experiment.
Snell's Law
Rutherford nuclear model
Component
Compression
2. For an oscillating spring - the restoring force exerted by the spring is directly proportional to the displacement. That is - the more the spring is displaced - the stronger the force that will pull toward the equilibrium position. This law is expres
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3. When a light ray strikes a surface - the angle of incidence is the angle between the incident ray and the normal.
Angle of incidence
Displacement
Radian
Right-hand rule
4. 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.
Weightlessness
Angular displacement
Vertex
Vector
5. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Radian
Tension force
Orbit
Activity
6. The longest side of a right triangle - opposite to the right angle.
Weak nuclear force
Hypotenuse
Newton's Law of Universal Gravitation
Doppler shift
7. 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.
Diffraction grating
Index of refraction
Focal length
Virtual image
8. 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
Dispersion
Cross product
Radian
Medium
9. Relates the angle of incidence to the angle of refraction: .
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10. 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
Reflected ray
Photoelectric effect
Charles's Law
Efficiency
11. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Concave mirror
Ground state
Index of refraction
Electric generator
12. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Optics
Superposition
Hooke's Law
Distance
13. Two materials are in thermal equilibrium if they are at the same temperature.
Thermal equilibrium
Angular velocity
Frictional force
Translational kinetic energy
14. 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.
Nuclear fission
Kepler's Third Law
Half
Coefficient of static friction
15. 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.
Michelson-Morley experiment
Heat engine
Rigid body
System
16. 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
First Law of Thermodynamics
Compression
Chain reaction
Orbit
17. 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
Latent heat of fusion
Focal point
Medium
Half
18. A negatively charged particle that orbits the nucleus of the atom.
Electron
Kinetic energy
Dynamics
Charles's Law
19. Heat transfer by molecular collisions.
Entropy
Conduction
Photon
De Broglie wavelength
20. 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.
Incident ray
Real image
Speed
Heat transfer
21. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Directly proportional
Uniform circular motion
Activity
Deposition
22. The force between two surfaces that are not moving relative to one another. The force of static friction is parallel to the plane of contact between the two objects and resists the force pushing or pulling on the object.
Minima
Magnification
Static friction
Basis vector
23. 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.
Calorie
Nuclear fusion
Tail
Static friction
24. The amount of heat necessary to transform a liquid at a given temperature into a gas of the same temperature - or the amount of heat needed to be taken away from a gas of a given temperature to transform it into a liquid of the same temperature.
Latent heat of vaporization
Collision
Work
Zeroth Law of Thermodynamics
25. An equation - PV = nRT - that relates the pressure - volume - temperature - and quantity of an ideal gas. An ideal gas is one that obeys the approximations laid out in the kinetic theory of gases.
Joule
Component
Ideal gas law
Dynamics
26. The stable position of a system where the net force acting on the object is zero.
Directly proportional
Induced current
Heat transfer
Equilibrium position
27. A number - Z - associated with the number of protons in the nucleus of an atom. Every element can be defined in s of its atomic number - since every atom of a given element has the same number of protons.
Kinematic equations
Atomic number
Minima
Refraction
28. A scale for measuring temperature - defined such that 0K is the lowest theoretical temperature a material can have. 273K = 0ºC.
Convex mirror
Thermal energy
Kelvin
Angular period
29. 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.
Acceleration
Directly proportional
Gravitational constant
Convex lens
30. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Static friction
Inertia
Hooke's Law
Gold foil experiment
31. The disorder of a system.
Constant of proportionality
Entropy
Centripetal force
Simple harmonic oscillator
32. The point of a mirror or lens where all light that runs parallel to the principal axis will be focused. Concave mirrors and convex lenses are designed to focus light into the focal point. Convex mirrors and concave lenses focus light away from the fo
Orbit
Destructive interference
Focal point
Displacement
33. 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.
Nuclear fusion
Heat
Restoring force
Vertex
34. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Centripetal acceleration
Harmonic series
Node
Phase
35. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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36. A form of radioactive decay where a heavy element emits an alpha particle and some energy - thus transforming into a lighter - more stable - element.
Vector
Sublimation
Alpha decay
Total internal reflection
37. 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 .
Inversely proportional
Dot product
Pendulum
Conservation of momentum
38. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Destructive interference
Mole
Half
Universal gas constant
39. Heat transfer via electromagnetic waves.
Melting point
Internal energy
Radiation
Bohr atomic model
40. A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.
Frequency
Coefficient of linear expansion
Specific heat
Snell's Law
41. In an interference or diffraction pattern - the places where there is the least light.
Conservation of momentum
Radioactivity
Minima
Normal force
42. The ray of light that is reflected from a mirror or other reflecting surface.
Superposition
Calorie
Reflected ray
Conservation of Angular Momentum
43. To every action - there is an equal and opposite reaction. If an object A exerts a force on another object B - B will exert on A a force equal in magnitude and opposite in direction to the force exerted by A.
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44. 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.
Angular frequency
Polarization
Convex mirror
Mass number
45. When a solid - liquid - or gas changes into another phase of matter.
Equilibrium position
Phase change
Compression
Frequency
46. The amount of error that's possible in a given measurement.
Beats
Margin of error
Convex lens
Phase change
47. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Rutherford nuclear model
Newton
Pressure
Electronvolt
48. A property common to both vectors and scalars. In the graphical representation of a vector - the vector's magnitude is equal to the length of the arrow.
Tension force
Magnitude
Rotational motion
Gamma decay
49. Two quantities are inversely proportional if an increase in one results in a proportional decrease in the other - and a decrease in one results in a proportional increase in the other. In a formula defining a certain quantity - those quantities to wh
Critical angle
Magnification
Neutron number
Inversely proportional
50. The emf created by the motion of a charge through a magnetic field.
Reflect
Newton's First Law
Compression
Motional emf