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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 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
Energy
Pascals
Magnitude
Mechanical energy
2. An object at rest remains at rest - unless acted upon by a net force. An object in motion remains in motion - unless acted upon by a net force.
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3. 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
Decibel
Kinetic theory of gases
Boyle's Law
Nuclear fission
4. The emf created by the motion of a charge through a magnetic field.
Motional emf
Proton
Weak nuclear force
Coefficient of static friction
5. The path of each planet around the sun is an ellipse with the sun at one focus.
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6. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Conservation of Angular Momentum
First Law of Thermodynamics
Mass defect
Third Law of Thermodynamics
7. The lowest theoretical temperature a material can have - where the molecules that make up the material have no kinetic energy. Absolute zero is reached at 0 K or -273º C.
Chain reaction
Diffraction grating
Absolute zero
Frictional force
8. 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.
Second Law of Thermodynamics
Chain reaction
Instantaneous velocity
Weightlessness
9. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Rotational motion
Coefficient of linear expansion
Second Law of Thermodynamics
Focal length
10. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Constant of proportionality
Newton
Heat transfer
Transverse waves
11. A measurement of a body's inertia - or resistance to being accelerated.
Cosine
Period
Mass
First Law of Thermodynamics
12. 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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13. A vector of magnitude 1 along one of the coordinate axes. Generally - we take the basis vectors to be and - the vectors of length 1 along the x- and y-axes - respectively.
Pitch
Basis vector
Compression
Inertial reference frame
14. 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.
Completely inelastic collision
Half
Magnification
Deposition
15. Waves in which the medium moves in the direction perpendicular to the propagation of the wave. Waves on a stretched string - water waves - and electromagnetic waves are all examples of transverse waves.
Rutherford nuclear model
Transverse waves
Concave mirror
Heat transfer
16. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Gamma decay
Electromagnetic spectrum
Displacement
Law of conservation of energy
17. Two materials are in thermal equilibrium if they are at the same temperature.
Gamma decay
Thermal equilibrium
Heat
Normal
18. Heat transfer by molecular collisions.
Pitch
Translational kinetic energy
Compression
Conduction
19. An object cannot be cooled to absolute zero.
Margin of error
Sublimation
Potential energy
Third Law of Thermodynamics
20. 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.
Acceleration
Impulse
Coefficient of kinetic friction
Translational kinetic energy
21. 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.
Direction
Distance
Collision
Alpha particle
22. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Translational motion
Lenz's Law
Diffraction
Work function
23. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.
Total internal reflection
Velocity
Decay constant
Beta decay
24. The name of an electron released from the surface of a metal due to the photoelectric effect.
Elastic collision
Sublimation
Efficiency
Photoelectron
25. 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).
Tangent
Cycle
Optics
Power
26. 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.
Threshold frequency
Concave mirror
Constructive interference
Total internal reflection
27. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Gold foil experiment
Angular position
Hypotenuse
Doppler shift
28. When dealing with reflection or refraction - the incident ray is the ray of light before it strikes the reflecting or refracting surface.
Tail
Bohr atomic model
Loudness
Incident ray
29. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Latent heat of fusion
Dynamics
Harmonic series
Diffraction grating
30. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Reflection
Diffraction
Distance
Doppler shift
31. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Center of curvature
Free
Translational kinetic energy
Frequency
32. 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.
Legs
Torque
Gamma decay
Force
33. 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.
Free
Efficiency
Index of refraction
Lenz's Law
34. Heat transfer via the mass movement of molecules.
De Broglie wavelength
Velocity
Convection
Latent heat of fusion
35. 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.
Component
Heat engine
Trough
Weak nuclear force
36. If a line is drawn from the sun to the planet - then the area swept out by this line in a given time interval is constant.
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37. The force that binds protons and neutrons together in the atomic nucleus.
Strong nuclear force
Tangent
Conservation of momentum
Legs
38. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.
Cycle
Threshold frequency
Motional emf
Neutron number
39. 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.
Oscillation
Virtual image
Momentum
Displacement
40. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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41. 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.
Rotational kinetic energy
Constructive interference
Crest
Transformer
42. 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.
Free
Velocity
Force
Latent heat of fusion
43. 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
Inertia
Tangent
Calorie
Photoelectric effect
44. 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
Snell's Law
Cycle
Induced current
Beta decay
45. A collision in which momentum is conserved but kinetic energy is not.
Wave
Nuclear fission
Inelastic collision
Entropy
46. A nuclear reaction in which a high-energy neutron bombards a heavy - unstable atomic nucleus - causing it to split into two smaller nuclei - and releasing some neutrons and a vast amount of energy at the same time
Impulse
Nuclear fusion
Atom
Nuclear fission
47. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Boiling point
Tail
Trough
Inertial reference frame
48. The movement of a rigid body's center of mass in space.
Vector
Torque
Translational motion
Angular period
49. 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.
Sound
First Law of Thermodynamics
Destructive interference
Conservation of Angular Momentum
50. The amount of heat needed to raise the temperature of one gram of water by one degree Celsius. 1 cal = 4.19 J.
Rotational kinetic energy
Celsius
Convex lens
Calorie