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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 angle between a refracted ray and the line normal to the surface.
Hypotenuse
Angle of refraction
Second Law of Thermodynamics
Activity
2. 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.
Reflected ray
Mutual Induction
First Law of Thermodynamics
Acceleration
3. An object is called radioactive if it undergoes radioactive decay.
Radioactivity
Work
Speed
Dynamics
4. The points midway between nodes on a standing wave - where the oscillations are largest.
Sublimation
Real image
Antinode
Angular acceleration
5. A collision in which momentum is conserved but kinetic energy is not.
Significant digits
Inelastic collision
Third Law of Thermodynamics
Pressure
6. 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
Focal length
Tail
De Broglie wavelength
Component
7. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.
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8. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Phase change
Chain reaction
Proton
Gold foil experiment
9. 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.
Tension force
Dot product
System
Momentum
10. A constant in the numerator of a formula.
Inelastic collision
Radioactive decay
Destructive interference
Constant of proportionality
11. The straight line that runs through the focal point and the vertex of a mirror or lens.
Static friction
Principal axis
Inertial reference frame
Angle of refraction
12. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Fundamental
Nucleus
Focal point
Dispersion
13. If two systems - A and B - are in thermal equilibrium and if B and C are also in thermal equilibrium - then systems A and C are necessarily in thermal equilibrium.
Newton
Beta particle
Zeroth Law of Thermodynamics
Spring constant
14. 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
Virtual image
Proton
Kinetic theory of gases
Electric generator
15. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Deposition
Legs
Electric generator
Crest
16. A unit vector is a vector with length 1.
Weber
Normal
Magnitude
Unit vector
17. A scalar quantity that tells us how fast an object is moving. It measures the rate of change in distance over time. Speed is to be contrasted with velocity in that there is no direction associated with speed.
Rotational motion
Electronvolt
Speed
Zeroth Law of Thermodynamics
18. When dealing with reflection or refraction - the incident ray is the ray of light before it strikes the reflecting or refracting surface.
Translational motion
Ideal gas law
Incident ray
Wave speed
19. A mirror that is curved such that its center is closer to the viewer than the edges - such as a doorknob. Convex mirrors reflect light away from a focal point.
Optics
Completely inelastic collision
Convex mirror
Coefficient of volume expansion
20. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Melting point
Center of curvature
Static friction
Translational motion
21. When a solid - liquid - or gas changes into another phase of matter.
Photoelectric effect
Phase change
Cross product
Faraday's Law
22. A collision in which both kinetic energy and momentum are conserved.
Boiling point
Elastic collision
Magnitude
Constructive interference
23. Heat transfer via the mass movement of molecules.
Zeroth Law of Thermodynamics
Gold foil experiment
Convection
Heat
24. The number of hydrogen atoms in one gram of hydrogen - equal to . When counting the number of molecules in a gas - it is often convenient to count them in moles.
Mass
Decibel
Ideal gas law
Mole
25. 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.
Cycle
Real image
Antinode
Center of mass
26. The coefficient of static friction - for two materials is the constant of proportionality between the normal force and the maximum force of static friction. It is always a number between zero and one.
Angle of refraction
Hertz (Hz)
Orbit
Coefficient of static friction
27. 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.
Doppler shift
Index of refraction
Uniform circular motion
Inclined plane
28. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.
Weak nuclear force
Gamma decay
Mass
Neutrino
29. An electromagnetic wave of very high frequency.
Cycle
Gamma ray
Elastic collision
Law of conservation of energy
30. 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
Rotational kinetic energy
Cycle
Completely inelastic collision
Traveling waves
31. 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.
Inertia
Medium
Angular frequency
Pressure
32. Heat transfer via electromagnetic waves.
Radiation
Alpha particle
Focal point
Entropy
33. The number of digits that have been accurately measured. When combining several measurements in a formula - the resulting calculation can only have as many significant digits as the measurement that has the smallest number of significant digits.
Radian
Significant digits
Kelvin
Focal length
34. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Basis vector
Mass
Convex lens
Half
35. When objects collide - each object feels a force for a short amount of time. This force imparts an impulse - or changes the momentum of each of the colliding objects. The momentum of a system is conserved in all kinds of collisions. Kinetic energy is
Pulley
Collision
Newton's Law of Universal Gravitation
Strong nuclear force
36. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Concave mirror
Heat engine
Tip
Longitudinal waves
37. Another word for the frequency of a sound wave.
Pitch
Electronvolt
Conservation of momentum
Pressure
38. The gravitational force exerted on a given mass.
Basis vector
Thermal equilibrium
Gamma ray
Weight
39. 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.
Angular period
Ground state
Sine
Transverse waves
40. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Kinetic energy
Cross product
Longitudinal waves
Pascals
41. A body or set of bodies that we choose to analyze as a group.
Transverse waves
Weight
System
Sublimation
42. 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
Moment of inertia
Center of mass
Alpha decay
Angular velocity
43. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Pendulum
Kinetic friction
Entropy
Scalar
44. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Index of refraction
Radioactivity
Loudness
Total internal reflection
45. A vector quantity - equal to the rate of change of the angular velocity vector with time. It is typically given in units of rad/s2.
Second Law of Thermodynamics
Angular acceleration
Electric generator
Sublimation
46. 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.
Vertex
Gamma decay
Radius of curvature
Charles's Law
47. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Principal axis
Rotational motion
Radiation
Incident ray
48. The property of a vector that distinguishes it from a scalar: while scalars have only a magnitude - vectors have both a magnitude and a direction. When graphing vectors in the xy-coordinate space - direction is usually given by the angle measured cou
Focal length
Electromagnetic induction
Direction
Half
49. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Atom
Electromagnetic spectrum
Restoring force
Work
50. The points of maximum negative displacement along a wave. They are the opposite of wave crests.
Trough
Newton
Mass defect
Boiling point