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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. A unit of measurement for energy on atomic levels. 1 eV = J.
Electronvolt
Acceleration
Decibel
Torque
2. 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
Inversely proportional
Wave
Cosine
Kinematics
3. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Inelastic collision
Loudness
Isolated system
Faraday's Law
4. 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.
Convex lens
Melting point
Absolute zero
Power
5. 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.
Pascals
Faraday's Law
Component
Angular frequency
6. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Equilibrium position
Tangent
Concave mirror
Tip
7. 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.
Velocity
Heat
Latent heat of sublimation
Refraction
8. 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.
Coefficient of kinetic friction
Cosine
Legs
Power
9. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Neutron number
Kinematics
Concave lens
Pressure
10. The number - N - of neutrons in an atomic nucleus.
Photon
Static friction
Neutron number
Diffraction
11. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Medium
Oscillation
Second Law of Thermodynamics
Electromagnetic spectrum
12. The reaction force of the ground - a table - etc. - when an object is placed upon it. The normal force is a direct consequence of Newton's Third Law: when an object is placed on the ground - the ground pushes back with the same force that it is pushe
Beta particle
Basis vector
Inertia
Normal force
13. The study of the properties of visible light - i.e. - the portion of the electromagnetic spectrum with wavelengths between 360 and 780 nm (1 nm = m/s).
Gravitational Potential Energy
Sublimation
Bohr atomic model
Optics
14. Any vector can be expressed as the sum of two mutually perpendicular component vectors. Usually - but not always - these components are multiples of the basis vectors - and ; that is - vectors along the x-axis and y-axis. We define these two vectors
Mass
Margin of error
Magnitude
Component
15. 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.
Tangent
Pitch
Sine
Incident ray
16. The time - T - required for a rigid body to complete one revolution.
Coefficient of volume expansion
Refraction
Angular period
Right-hand rule
17. 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
Critical angle
Neutrino
Compression
18. Two oscillators that have the same frequency and amplitude - but reach their maximum displacements at different times - are said to have different phases. Similarly - two waves are in phase if their crests and troughs line up exactly - and they are o
Index of refraction
Gamma ray
Phase
Meson
19. 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.
Gamma decay
Latent heat of vaporization
Heat engine
Tip
20. 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.
Newton's Second Law
Half
Oscillation
Pendulum
21. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Kinematic equations
Kinetic friction
Induced current
22. The phenomenon of light bouncing off a surface - such as a mirror.
Neutron
Spring constant
Reflection
Elastic collision
23. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Translational kinetic energy
Atom
Dynamics
Heat engine
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.
Trough
Planck's constant
Equilibrium position
Index of refraction
25. 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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26. A collision in which both kinetic energy and momentum are conserved.
Elastic collision
Heat
Angular period
Centripetal acceleration
27. 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.
Pulley
Antinode
Virtual image
Nucleus
28. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Frequency
Reflection
Diffraction
Superposition
29. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Kelvin
Melting point
Focal length
Bohr atomic model
30. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Charles's Law
Newton's Law of Universal Gravitation
Nuclear fission
Restoring force
31. 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.
Normal
Atomic number
Uncertainty principle
Refraction
32. The standing wave with the lowest frequency that is supported by a string with both ends tied down is called the fundamental - or resonance - of the string. The wavelength of the fundamental is twice the length of the string - .
Inclined plane
Radioactivity
Heat
Fundamental
33. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
De Broglie wavelength
Angular momentum
Center of curvature
Centripetal acceleration
34. Light such that all of the associated waves have the same wavelength and are in phase.
Coherent light
Beta particle
Nuclear fusion
Induced current
35. 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
Amplitude
Beta particle
Cross product
Directly proportional
36. 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.
Tip
Cycle
Ideal gas law
Angle of reflection
37. 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.
Mass defect
Minima
Cycle
Focal length
38. The longest side of a right triangle - opposite to the right angle.
Work-energy theorem
Hypotenuse
Simple harmonic oscillator
Second Law of Thermodynamics
39. 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 -
Compression
Mutual Induction
Inertia
Atomic number
40. The force transmitted along a rope or cable.
Sine
Tangent
Maxima
Tension force
41. 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
Electric generator
Directly proportional
Spring
Completely inelastic collision
42. A transverse traveling wave created by the oscillations of an electric field and a magnetic field. Electromagnetic waves travel at the speed of light - m/s. Examples include microwaves - X rays - and visible light.
Electromagnetic wave
Entropy
Conservation of momentum
Moment of inertia
43. For a reflected light ray - . In other words - a ray of light reflects of a surface in the same plane as the incident ray and the normal - and at an angle to the normal that is equal to the angle between the incident ray and the normal.
Law of reflection
Amplitude
Hooke's Law
Electronvolt
44. The building blocks of all matter - atoms are made up of a nucleus consisting of protons and neutrons - and a number of electrons that orbit the nucleus. An electrically neutral atom has as many protons as it has electrons.
Rigid body
Atom
Mass
Angular acceleration
45. 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.
Inversely proportional
Destructive interference
Sound
Neutrino
46. 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 -
Scalar
Alpha decay
Work function
Rarefaction
47. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.
Chain reaction
Sublimation
Concave lens
Calorie
48. The process by which unstable nuclei spontaneously release particles and/or energy so as to come to a more stable arrangement. The most common forms of radioactive decay are alpha decay - beta decay - and gamma decay.
Radioactive decay
Potential energy
Dot product
Rutherford nuclear model
49. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Hooke's Law
Gamma decay
Diffraction
Critical angle
50. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Convex mirror
Instantaneous velocity
Wave
Gamma ray