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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. 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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2. 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.
Kinetic friction
Ideal gas law
Newton
Faraday's Law
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.
Latent heat of fusion
Acceleration
Inelastic collision
Inversely proportional
4. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.
Force
Chain reaction
Angular frequency
Beta decay
5. Another word for the frequency of a sound wave.
Harmonic series
Mutual Induction
Pitch
Newton's Third Law
6. 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
Latent heat of vaporization
Angular displacement
Atomic number
7. 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
Nuclear fission
Strong nuclear force
Weber
Instantaneous velocity
8. 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.
Alpha decay
Inertia
Angular position
Latent heat of transformation
9. 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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10. 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.
Traveling waves
Reflect
Static friction
Law of reflection
11. The energy associated with the configuration of bodies attracted to each other by the gravitational force. It is a measure of the amount of work necessary to get the two bodies from a chosen point of reference to their present position. This point of
System
Gravitational Potential Energy
Joule
Thermal energy
12. The property by which a charge moving in a magnetic field creates an electric field.
Electromagnetic induction
Angular velocity
Completely inelastic collision
Heat
13. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Normal force
Total internal reflection
Conservation of Angular Momentum
Angle of refraction
14. A collision in which both kinetic energy and momentum are conserved.
Heat engine
Completely inelastic collision
Angular displacement
Elastic collision
15. A vector quantity - or vector - is an object possessing - and fully described by - a magnitude and a direction. Graphically a vector is depicted as an arrow with its magnitude given by the length of the arrow and its direction given by where the arro
Medium
Vector
Work
Kinematics
16. A wave with wave crests that propagate down the length of the medium - in contrast to stationary standing waves. The velocity at which a crest propagates is called the wave speed.
Kelvin
Traveling waves
Pendulum
Doppler shift
17. 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.
Absolute zero
Universal gas constant
Newton's Third Law
Static friction
18. 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.
Frequency
Mechanical energy
Thermal energy
Beta particle
19. A pendulum consists of a bob connected to a rod or rope. At small angles - a pendulum's motion approximates simple harmonic motion as it swings back and forth without friction.
Pendulum
Gamma decay
Electron
Work function
20. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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21. When dealing with reflection or refraction - the incident ray is the ray of light before it strikes the reflecting or refracting surface.
Tension force
Incident ray
Atom
Unit vector
22. The straight line that runs through the focal point and the vertex of a mirror or lens.
Vertex
Sine
Half
Principal axis
23. A vector quantity - L - that is the rotational analogue of linear momentum. For a single particle - the angular momentum is the cross product of the particle's displacement from the axis of rotation and the particle's linear momentum - . For a rigid
Angular momentum
Inelastic collision
Tail
Universal gas constant
24. 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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25. 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
Gamma ray
Mass
Cycle
Node
26. Also called a diverging lens - a lens that is thinner in the middle than at the edges. Concave lenses refract light away from a focal point.
Reflected ray
Static friction
Concave lens
Destructive interference
27. A device made of two coils - which converts current of one voltage into current of another voltage. In a step-up transformer - the primary coil has fewer turns than the secondary - thus increasing the voltage. In a step-down transformer - the seconda
Phase change
Transformer
Inversely proportional
Collision
28. The amount heat necessary to cause a substance to undergo a phase transition.
Coefficient of linear expansion
Latent heat of transformation
Focal point
Loudness
29. 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.
Quark
Cosine
Isotope
Dynamics
30. 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 -
Melting point
Static friction
Boiling point
Energy
31. 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.
Tension force
Heat
Radioactive decay
Acceleration
32. 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
Electromagnetic spectrum
Magnetic flux
Node
33. 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).
Internal energy
Power
Convex mirror
Instantaneous velocity
34. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Radiation
Equilibrium
Deposition
Atom
35. The center of a mirror or lens.
Vertex
Heat
Inertial reference frame
Cosine
36. 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
Kelvin
Legs
Directly proportional
Reflect
37. A constant - - not to be confused with wavelength - that defines the speed at which a radioactive element undergoes decay. The greater is - the faster the element decays.
Decay constant
De Broglie wavelength
Nuclear fusion
Rarefaction
38. 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.
Decay constant
Convex lens
Convex mirror
Center of curvature
39. A system that no external net force acts upon. Objects within the system may exert forces upon one another - but they cannot receive any impulse from outside forces. Momentum is conserved in isolated systems.
Isolated system
Rarefaction
Trough
Phase change
40. In a right triangle - the sine of a given angle is the length of the side opposite the angle divided by the length of the hypotenuse.
Hypotenuse
Sine
Latent heat of fusion
Atomic number
41. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Kinetic energy
Beta decay
Inclined plane
Gold foil experiment
42. A process that aligns a wave of light to oscillate in one dimension rather than two.
Transformer
Optics
Induced current
Polarization
43. A wave on a string that is tied to a pole at one end will reflect back toward its source - producing a wave that is the mirror-image of the original and which travels in the opposite direction.
Reflect
Pressure
Translational kinetic energy
Radioactive decay
44. The state of a nonrotating object upon whom the net torque acting is zero.
Significant digits
Equilibrium
Spectroscope
Absolute zero
45. The force that binds protons and neutrons together in the atomic nucleus.
Strong nuclear force
Force
Diffraction grating
Translational kinetic energy
46. A reference frame in which Newton's First Law is true. Two inertial reference frames move at a constant velocity relative to one another. According to the first postulate of Einstein's theory of special relativity - the laws of physics are the same i
Right-hand rule
Inertial reference frame
Weight
Nucleus
47. The motion of a body in a circular path with constant speed.
Latent heat of vaporization
Cross product
Second Law of Thermodynamics
Uniform circular motion
48. Given the trajectory of an object or system - the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force - the center of mass is the poin
Center of mass
Cosine
Inclined plane
Phase
49. States that the net work done on an object is equal to the object's change in kinetic energy.
Coefficient of volume expansion
Vector
Newton
Work-energy theorem
50. 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.
Rigid body
Real image
Legs
Basis vector