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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 distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Doppler shift
Radioactivity
Ground state
Wavelength
2. 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
Margin of error
Nuclear fission
Bohr atomic model
Atomic number
3. The net change - - in a point's angular position - . It is a scalar quantity.
Efficiency
Angular displacement
Kinetic theory of gases
Tip
4. A vector quantity defined as the rate of change of the displacement vector with time. It is to be contrasted with speed - which is a scalar quantity for which no direction is specified.
Thermal energy
Weight
Angular position
Velocity
5. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Superposition
Planck's constant
Hertz (Hz)
Crest
6. A push or a pull that causes an object to accelerate.
Virtual image
Hooke's Law
Force
Instantaneous velocity
7. 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.
Absolute zero
Static friction
Beta particle
Chain reaction
8. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Equilibrium position
Gravitational Potential Energy
Radian
Incident ray
9. 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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10. In a right triangle - the tangent of a given angle is the length of the side opposite the angle divided by the length of the side adjacent to the triangle.
Transverse waves
Rotational motion
Moment of inertia
Tangent
11. The principle stating that for any isolated system - linear momentum is constant with time.
Traveling waves
Conservation of momentum
Oscillation
Component
12. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Incident ray
Kinetic energy
Work-energy theorem
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 acceleration
Faraday's Law
Rutherford nuclear model
14. 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
Translational motion
Nuclear fusion
Hertz (Hz)
Mechanical energy
15. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Nuclear fusion
Vector
Electromagnetic spectrum
Snell's Law
16. The time - T - required for a rigid body to complete one revolution.
Instantaneous velocity
Coherent light
Charles's Law
Angular period
17. The property by which a changing current in one coil of wire induces an emf in another.
Heat transfer
Mutual Induction
Electric generator
Phase change
18. 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.
Cross product
Concave mirror
Sine
Displacement
19. The movement of a rigid body's center of mass in space.
Work-energy theorem
Translational motion
Center of mass
Planck's constant
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
Beats
Mass
System
Pitch
21. 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 -
Magnitude
Rarefaction
Cosine
Atom
22. 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
Planck's constant
Specific heat
Chain reaction
Dot product
23. 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.
Uncertainty principle
Speed
Equilibrium position
Radiation
24. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Temperature
Dynamics
Rotational kinetic energy
Inclined plane
25. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Concave mirror
Celsius
Principal axis
Component
26. 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
Antinode
Mass
Electronvolt
27. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Latent heat of sublimation
Angular momentum
Radius of curvature
Standing wave
28. A means of defining the direction of the cross product vector. To define the direction of the vector - position your right hand so that your fingers point in the direction of A - and then curl them around so that they point in the direction of B. Th
Translational motion
Right-hand rule
Efficiency
Refraction
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.
Radioactivity
Virtual image
Node
Real image
30. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Inertial reference frame
Coefficient of static friction
Pascals
Electromagnetic wave
31. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Sublimation
Strong nuclear force
Tip
Static friction
32. The dot product of the area and the magnetic field passing through it. Graphically - it is a measure of the number and length of magnetic field lines passing through that area. It is measured in Webers (Wb).
Law of conservation of energy
Mutual Induction
Magnetic flux
Alpha particle
33. A frequency - f - defined as the number of revolutions a rigid body makes in a given time interval. It is a scalar quantity commonly denoted in units of Hertz (Hz) or s-1.
Spring constant
Nuclear fission
Angular frequency
Direction
34. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Concave lens
Index of refraction
Calorie
Pressure
35. A transfer of thermal energy from one system to another.
Moment of inertia
Newton's Second Law
Melting point
Heat transfer
36. A process that aligns a wave of light to oscillate in one dimension rather than two.
Polarization
Neutron number
Angular acceleration
Beta decay
37. 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
Free
Photoelectric effect
Margin of error
Rutherford nuclear model
38. 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
Decay constant
Gravitational Potential Energy
Trough
Coherent light
39. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Newton's Second Law
Planck's constant
Centripetal acceleration
Weightlessness
40. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Ideal gas law
Oscillation
Threshold frequency
Reflected ray
41. 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.
Incident ray
Coefficient of static friction
Ideal gas law
Pendulum
42. The time it takes a system to pass through one cycle of its repetitive motion. The period - T - is the inverse of the motion's frequency - f = 1/T.
Period
Displacement
Rotational motion
Convection
43. The current induced in a circuit by a change in magnetic flux.
Convection
Induced current
Oscillation
Pascals
44. The two shorter sides of a right triangle that meet at the right angle.
Real image
Legs
Directly proportional
Newton
45. The property by which a charge moving in a magnetic field creates an electric field.
Electromagnetic induction
Conservation of Angular Momentum
Maxima
Sublimation
46. 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.
Heat transfer
Distance
Coefficient of static friction
Atomic number
47. 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.
Mechanical energy
Moment of inertia
Coefficient of kinetic friction
Isolated system
48. An area of high air pressure that acts as the wave crest for sound waves. The spacing between successive compressions is the wavelength of sound - and the number of successive areas of compression that arrive at the ear per second is the frequency -
Hypotenuse
Compression
Collision
Coherent light
49. 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).
Power
Translational kinetic energy
Frictional force
Heat engine
50. 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.
Cosine
Hypotenuse
Absolute zero
Centripetal force