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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. 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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2. 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.
Angle of incidence
Reflect
Frequency
Weak nuclear force
3. A constant in the numerator of a formula.
Induced current
Constant of proportionality
Neutrino
Antinode
4. Kinematics is the study and description of the motion of objects.
Concave mirror
Kinematics
Melting point
Rotational kinetic energy
5. 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.
Efficiency
Weak nuclear force
Scalar
Pendulum
6. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Thermal equilibrium
Work function
Strong nuclear force
Torque
7. The phenomenon by which light traveling from a high n to a low n material will reflect from the optical interface if the incident angle is greater than the critical angle.
Longitudinal waves
Law of conservation of energy
Total internal reflection
Activity
8. The series of standing waves supported by a string with both ends tied down. The first member of the series - called the fundamental - has two nodes at the ends and one anti-node in the middle. The higher harmonics are generated by placing an integra
Harmonic series
Mass number
Tangent
Work
9. 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 -
Force
Phase
Antinode
Compression
10. 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.
Law of conservation of energy
Sine
Boyle's Law
Reflection
11. 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.
Wavelength
Tension force
Inertial reference frame
Weightlessness
12. The number - N - of neutrons in an atomic nucleus.
Right-hand rule
Direction
Neutron number
Pressure
13. Represented by R = 8.31 J/mol · K - the universal gas constant fits into the ideal gas law so as to relate temperature to the average kinetic energy of gas molecules.
Latent heat of vaporization
Beats
Kinematics
Universal gas constant
14. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Kinetic energy
Margin of error
Kinetic theory of gases
Nuclear fusion
15. 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.
Inertia
Pendulum
Mass number
Centripetal force
16. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Distance
Phase change
Second Law of Thermodynamics
Electric generator
17. 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
Atom
Spring constant
Sine
18. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.
Threshold frequency
Strong nuclear force
Elastic collision
De Broglie wavelength
19. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Concave mirror
Restoring force
Photoelectric effect
Dispersion
20. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Cross product
Pulley
Trough
Basis vector
21. 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.
Newton's Law of Universal Gravitation
Frictional force
Boiling point
Instantaneous velocity
22. 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).
Thermal equilibrium
Snell's Law
Specific heat
Magnetic flux
23. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Magnetic flux
Rotational motion
Rotational kinetic energy
Principal axis
24. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Equilibrium
Meson
Power
Nucleus
25. A push or a pull that causes an object to accelerate.
Internal energy
Force
Meson
Angle of reflection
26. 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).
Maxima
Optics
Kinetic theory of gases
Incident ray
27. The current induced in a circuit by a change in magnetic flux.
Bohr atomic model
Induced current
Traveling waves
Pitch
28. A nuclear reaction that takes place only at very high temperatures. Two light atoms - often hydrogen - fuse together to form a larger single atom - releasing a vast amount of energy in the process.
Mole
Real image
Nuclear fusion
Latent heat of fusion
29. A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.
Kinetic theory of gases
Sine
Inclined plane
Cross product
30. The amplification of one wave by another - identical wave of the same sign. Two constructively interfering waves are said to be "in phase."
Deposition
Motional emf
Constructive interference
Half
31. The position - of an object according to a co-ordinate system measured in s of the angle of the object from a certain origin axis. Conventionally - this origin axis is the positive x-axis.
Elastic collision
Concave mirror
Angular position
Index of refraction
32. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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33. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Total internal reflection
Loudness
Radian
Heat transfer
34. Given the trajectory of an object or system - the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force - the center of mass is the poin
Potential energy
Center of mass
Normal
Tail
35. 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.
Standing wave
Vector
Inclined plane
Kinetic friction
36. 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.
De Broglie wavelength
Photoelectric effect
Basis vector
Maxima
37. Waves produced by a source that is moving with respect to the observer will seem to have a higher frequency and smaller wavelength if the motion is towards the observer - and a lower frequency and longer wavelength if the motion is away from the obse
Doppler shift
Calorie
Dot product
Spring constant
38. A unit of measurement for energy on atomic levels. 1 eV = J.
Michelson-Morley experiment
Rarefaction
Electronvolt
Quark
39. A scalar quantity. If an object is moved from point A to point B in space along path AB - the distance that the object has traveled is the length of the path AB. Distance is to be contrasted with displacement - which is simply a measure of the distan
Distance
Zeroth Law of Thermodynamics
Refraction
Boiling point
40. 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.
Principal axis
Mass number
Zeroth Law of Thermodynamics
Angular frequency
41. 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.
Convection
Vertex
Mole
Deposition
42. 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.
Focal length
Decibel
Gold foil experiment
Electromagnetic induction
43. 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
Moment of inertia
Translational kinetic energy
Transverse waves
44. Heat transfer via electromagnetic waves.
Radiation
Inversely proportional
Completely inelastic collision
Efficiency
45. The gravitational force exerted on a given mass.
Restoring force
Energy
Weight
Index of refraction
46. 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
Optics
Deposition
Cross product
Charles's Law
47. 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.
Alpha particle
Medium
Photoelectron
Real image
48. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Weber
De Broglie wavelength
Celsius
Displacement
49. When dealing with reflection or refraction - the incident ray is the ray of light before it strikes the reflecting or refracting surface.
Incident ray
Gamma ray
Law of reflection
Heat
50. 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.
Coefficient of kinetic friction
Neutron number
Momentum
Second Law of Thermodynamics