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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. 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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2. 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
Frictional force
Gravitational Potential Energy
Critical angle
Rigid body
3. A neutrally charged particle that - along with protons - constitutes the nucleus of an atom.
Neutron
Pulley
Inversely proportional
Kinetic theory of gases
4. The property by which a charge moving in a magnetic field creates an electric field.
Critical angle
Unit vector
Cosine
Electromagnetic induction
5. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Equilibrium
Oscillation
Gamma decay
Fundamental
6. The velocity at any given instant in time. To be contrasted with average velocity - which is a measure of the change in displacement over a given time interval.
Cycle
Instantaneous velocity
Charles's Law
Reflection
7. 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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8. The mass number - A - is the sum of the number of protons and neutrons in a nucleus. It is very close to the weight of that nucleus in atomic mass units.
Inversely proportional
Faraday's Law
Entropy
Mass number
9. 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
Tail
Orbit
Angular momentum
Nuclear fission
10. 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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11. 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.
Vertex
Basis vector
Chain reaction
Centripetal force
12. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Medium
Radius of curvature
Phase change
Michelson-Morley experiment
13. 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.
Inertia
Centripetal force
Normal
Deposition
14. 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.
Ideal gas law
Weightlessness
Direction
Power
15. 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
Cross product
Rotational kinetic energy
Angle of incidence
Conservation of Angular Momentum
16. A principle derived by Werner Heisenberg in 1927 that tells us that we can never know both the position and the momentum of a particle at any given time.
Torque
Uncertainty principle
Radioactivity
Impulse
17. The points on a standing wave where total destructive interference causes the medium to remain fixed at its equilibrium position.
Rigid body
Node
Conservation of momentum
Lenz's Law
18. Kinematics is the study and description of the motion of objects.
Planck's constant
Induced current
Kinematics
Gravitational constant
19. An image created by a mirror or lens in such a way that light does not actually come from where the image appears to be.
Pressure
Virtual image
Electromagnetic induction
Gamma ray
20. The movement of a rigid body's center of mass in space.
Wave
Newton's Law of Universal Gravitation
Antinode
Translational motion
21. The angle between a refracted ray and the line normal to the surface.
Inertial reference frame
Wave speed
Virtual image
Angle of refraction
22. States that the net work done on an object is equal to the object's change in kinetic energy.
Orbit
Uniform circular motion
Work-energy theorem
Spring constant
23. The net change - - in a point's angular position - . It is a scalar quantity.
Angular displacement
Gravitational constant
Weak nuclear force
Electronvolt
24. 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.
Index of refraction
Deposition
Magnitude
Magnification
25. The force between two surfaces moving relative to one another. The frictional force is parallel to the plane of contact between the two objects and in the opposite direction of the sliding object's motion.
Kinetic friction
Simple harmonic oscillator
Isotope
Boyle's Law
26. The amplification of one wave by another - identical wave of the same sign. Two constructively interfering waves are said to be "in phase."
Constructive interference
Longitudinal waves
Direction
Coefficient of linear expansion
27. The energy of a particle rotating around an axis.
Rotational kinetic energy
Dot product
Refraction
Temperature
28. 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
Focal point
Cosine
Faraday's Law
Component
29. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Internal energy
Inertia
Tip
Destructive interference
30. The gravitational force exerted on a given mass.
Inelastic collision
Weight
Electronvolt
Margin of error
31. A push or a pull that causes an object to accelerate.
Coefficient of static friction
Force
Third Law of Thermodynamics
Oscillation
32. 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
Coefficient of kinetic friction
Tangent
Boiling point
Inversely proportional
33. 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.
Force
Component
Magnetic flux
Reflect
34. A vector quantity - - that reflects the change of angular displacement with time - and is typically given in units of rad/s. To find the direction of the angular velocity vector - take your right hand and curl your fingers along the particle or body
Nuclear fusion
Moment of inertia
Angular velocity
Vector
35. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Radian
Kinetic theory of gases
Restoring force
Completely inelastic collision
36. A vector quantity defined as the rate of change of the velocity vector with time.
Photoelectron
Michelson-Morley experiment
Uncertainty principle
Acceleration
37. A measurement of a body's inertia - or resistance to being accelerated.
Mass
Kepler's Third Law
Celsius
Kinetic energy
38. 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.
Convection
Concave lens
Focal length
Instantaneous velocity
39. A collision in which momentum is conserved but kinetic energy is not.
Inelastic collision
Latent heat of vaporization
Wave speed
Period
40. 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
Internal energy
Boiling point
Moment of inertia
De Broglie wavelength
41. The amount of heat necessary for a material undergoing sublimation to make a phase change from gas to solid or solid to gas - without a change in temperature.
Latent heat of sublimation
Kelvin
Kepler's First Law
Joule
42. A force caused by the roughness of two materials in contact - deformations in the materials - and a molecular attraction between the materials. Frictional forces are always parallel to the plane of contact between two surfaces and opposite the direct
Frictional force
Newton's Third Law
Center of mass
System
43. 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.
Gamma decay
Pascals
Normal force
Instantaneous velocity
44. Essentially a restatement of energy conservation - it states that the change in the internal energy of a system is equal to the heat added plus the work done on the system.
Quark
Thermal equilibrium
Center of curvature
First Law of Thermodynamics
45. An area of high air pressure that acts as the wave trough for sound waves. The spacing between successive rarefactions is the wavelength of sound - and the number of successive areas of rarefaction that arrive at the ear per second is the frequency -
Margin of error
Focal length
Refracted ray
Rarefaction
46. The line that every particle in the rotating rigid body circles about.
Rotational kinetic energy
Weightlessness
Axis of rotation
Conduction
47. 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.
Wave
Diffraction grating
Significant digits
Mass defect
48. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Rotational motion
Fundamental
Beats
Elastic collision
49. The longest side of a right triangle - opposite to the right angle.
Wave speed
Neutron
Amplitude
Hypotenuse
50. 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
Displacement
Planck's constant
Legs
Doppler shift