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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. A collision in which the colliding particles stick together.
Gold foil experiment
Completely inelastic collision
Amplitude
Static friction
3. 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.
Gamma ray
Law of reflection
Alpha decay
Threshold frequency
4. 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
Second Law of Thermodynamics
Newton's Second Law
Concave mirror
Inertial reference frame
5. The effect of force on rotational motion.
Instantaneous velocity
Spring
Proton
Torque
6. Done when energy is transferred by a force. The work done by a force F in displacing an object by s is W = F · s.
Work
Newton's Second Law
Kepler's First Law
Spectroscope
7. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Energy
Centripetal acceleration
Newton's First Law
Sublimation
8. The energy of a particle rotating around an axis.
Rotational kinetic energy
Planck's constant
Refracted ray
Loudness
9. The ray of light that is reflected from a mirror or other reflecting surface.
Reflected ray
Directly proportional
Absolute zero
Snell's Law
10. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Chain reaction
Conservation of Angular Momentum
Mutual Induction
Gravitational Potential Energy
11. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Newton's First Law
Distance
Angular frequency
Pascals
12. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Cycle
Angular position
Oscillation
Tension force
13. The number of cycles executed by a system in one second. Frequency is the inverse of period - f = 1/T. Frequency is measured in hertz - Hz.
Frequency
Boyle's Law
Pressure
Uncertainty principle
14. 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.
Latent heat of fusion
Pendulum
Equilibrium
Velocity
15. The amount heat necessary to cause a substance to undergo a phase transition.
Convex lens
Velocity
Maxima
Latent heat of transformation
16. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Gamma ray
Destructive interference
Diffraction
Frictional force
17. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Rotational motion
Fundamental
Momentum
Newton's First Law
18. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Phase change
Threshold frequency
Melting point
Dot product
19. The line perpendicular to a surface. There is only one normal for any given surface.
Normal
Tail
Angular momentum
Vertex
20. 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
Photon
Displacement
Component
Period
21. 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.
Efficiency
Refraction
Instantaneous velocity
Angular frequency
22. 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.
Work-energy theorem
Zeroth Law of Thermodynamics
Chain reaction
First Law of Thermodynamics
23. The emf created by the motion of a charge through a magnetic field.
Atomic number
Basis vector
Inclined plane
Motional emf
24. A measurement of a body's inertia - or resistance to being accelerated.
Atomic number
Refracted ray
Legs
Mass
25. The motion of a body in a circular path with constant speed.
Celsius
Inversely proportional
Longitudinal waves
Uniform circular motion
26. 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.
Angular period
Diffraction
Rarefaction
Momentum
27. A device that breaks incoming light down into spectral rays - so that one can see the exact wavelength constituents of the light.
Photoelectron
Boyle's Law
Spectroscope
Tail
28. In an interference or diffraction pattern - the places where there is the least light.
Scalar
Kelvin
Minima
Antinode
29. 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 -
Radius of curvature
Longitudinal waves
Instantaneous velocity
Compression
30. Indicates how "bouncy" or "stiff" a spring is. More specifically - the spring constant - k - is the constant of proportionality between the restoring force exerted by the spring - and the spring's displacement from equilibrium. The greater the value
Principal axis
Spring constant
Newton's First Law
Tangent
31. 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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32. 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.
Atomic number
Reflect
Restoring force
Trough
33. 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.
Concave lens
Calorie
Neutron
Heat
34. 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
Directly proportional
Moment of inertia
Potential energy
Uniform circular motion
35. 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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36. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.
Coefficient of static friction
Superposition
Beta decay
Wavelength
37. 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.
Harmonic series
Convex lens
Work-energy theorem
Hypotenuse
38. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Maxima
Vertex
Free
Rotational motion
39. The property by which a changing current in one coil of wire induces an emf in another.
Instantaneous velocity
Collision
Mutual Induction
Period
40. 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.
Principal axis
Period
Significant digits
Kepler's Second Law
41. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Angle of reflection
Center of mass
Efficiency
Neutrino
42. 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.
Concave mirror
Efficiency
Coefficient of linear expansion
Weightlessness
43. The energy of a particle moving in space. It is defined in s of a particle's mass - m - and velocity - v - as (1/2)mv2.
Translational kinetic energy
Radioactivity
Refracted ray
Magnification
44. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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45. A process that aligns a wave of light to oscillate in one dimension rather than two.
Polarization
Third Law of Thermodynamics
Photoelectric effect
Maxima
46. 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
Weber
Momentum
Sound
Beats
47. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Heat transfer
Gold foil experiment
Motional emf
Inelastic collision
48. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Tension force
Calorie
Weak nuclear force
Spring
49. 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.
Coefficient of linear expansion
Wave
Isolated system
Kinetic friction
50. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Centripetal force
Focal point
Thermal equilibrium
Spectroscope