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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 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
Hooke's Law
Right-hand rule
Radian
Neutrino
2. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Crest
Lenz's Law
Neutron
Tip
3. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Uniform circular motion
Kelvin
Principal axis
Mass defect
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
Trough
Mass defect
Mass number
Inertial reference frame
5. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Newton
Virtual image
Bohr atomic model
Rotational motion
6. 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.
Isolated system
Nuclear fission
Mechanical energy
Ideal gas law
7. The angle between a reflected ray and the normal.
Mass defect
Pendulum
Angle of reflection
Directly proportional
8. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Superposition
Elastic collision
Wave
Polarization
9. A wave with wave crests that propagate down the length of the medium - in contrast to stationary standing waves. The velocity at which a crest propagates is called the wave speed.
Force
Traveling waves
Doppler shift
Significant digits
10. An object cannot be cooled to absolute zero.
Wavelength
Third Law of Thermodynamics
Efficiency
Centripetal acceleration
11. 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.
Efficiency
Mole
Amplitude
Alpha particle
12. An almost massless particle of neutral charge that is released along with a beta particle in beta decay.
Neutrino
Work function
Component
Angle of incidence
13. The two shorter sides of a right triangle that meet at the right angle.
Elastic collision
Legs
Thermal equilibrium
Neutron number
14. A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.
Cross product
Radioactivity
Inclined plane
Universal gas constant
15. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Velocity
Electromagnetic induction
Pressure
Conduction
16. A property common to both vectors and scalars. In the graphical representation of a vector - the vector's magnitude is equal to the length of the arrow.
Translational kinetic energy
Electromagnetic wave
Magnitude
Kepler's First Law
17. 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.
Fundamental
Angular frequency
Threshold frequency
Transverse waves
18. 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.
Boiling point
Simple harmonic oscillator
Wavelength
Convex mirror
19. 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.
Torque
Heat
Nucleus
Period
20. The stable position of a system where the net force acting on the object is zero.
Refraction
Equilibrium position
Destructive interference
Lenz's Law
21. Heat transfer via the mass movement of molecules.
Decay constant
Convection
Diffraction grating
Refracted ray
22. An experiment by Ernest Rutherford that proved for the first time that atoms have nuclei.
Gold foil experiment
Inelastic collision
Latent heat of fusion
Nuclear fission
23. A mirror that is curved such that its center is farther from the viewer than the edges - such as the front of a spoon. Concave mirrors reflect light through a focal point.
Vertex
Concave mirror
Real image
Inelastic collision
24. For a gas held at constant pressure - temperature and volume are directly proportional.
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25. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Amplitude
Restoring force
Nuclear fission
Inclined plane
26. 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.
Universal gas constant
Basis vector
Newton's Law of Universal Gravitation
Significant digits
27. 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.
Meson
Uncertainty principle
Kepler's First Law
Collision
28. A class of elementary particle whose mass is between that of a proton and that of an electron. A common kind of meson is the pion.
Atom
Kinematic equations
Meson
Work
29. 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.
Translational kinetic energy
Compression
Convex lens
Radioactive decay
30. A vector quantity defined as the product of the force acting on a body multiplied by the time interval over which the force is exerted.
Work-energy theorem
Impulse
Margin of error
Rotational motion
31. Two materials are in thermal equilibrium if they are at the same temperature.
Transverse waves
Radian
Thermal equilibrium
Gravitational Potential Energy
32. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.
Virtual image
Atomic number
Reflected ray
Sublimation
33. A device that breaks incoming light down into spectral rays - so that one can see the exact wavelength constituents of the light.
Spectroscope
Center of curvature
Tip
Hypotenuse
34. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Lenz's Law
Kinetic energy
Activity
Zeroth Law of Thermodynamics
35. The points on a standing wave where total destructive interference causes the medium to remain fixed at its equilibrium position.
Vertex
Node
Lenz's Law
Directly proportional
36. 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.
Kepler's Third Law
Angular acceleration
Coefficient of static friction
Reflect
37. In radioactive substances - the number of nuclei that decay per second. Activity - A - will be larger in large samples of radioactive material - since there will be more nuclei.
Inelastic collision
Activity
Heat
Zeroth Law of Thermodynamics
38. 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.
Mass number
Kinetic friction
Conservation of Angular Momentum
Specific heat
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
Translational kinetic energy
Mole
Angle of refraction
40. The speed at which a wave crest or trough propagates. Note that this is not the speed at which the actual medium (like the stretched string or the air particles) moves.
Internal energy
Incident ray
Wave speed
Calorie
41. In an interference or diffraction pattern - the places where there is the least light.
Radian
Temperature
Axis of rotation
Minima
42. The energy stored in a thermodynamic system.
Pendulum
Isolated system
Internal energy
Standing wave
43. 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.
De Broglie wavelength
Dynamics
Conservation of Angular Momentum
Zeroth Law of Thermodynamics
44. 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
Vector
Displacement
Gamma ray
Nuclear fission
45. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Isolated system
Reflection
Boyle's Law
Proton
46. A constant in the numerator of a formula.
Rigid body
Constant of proportionality
Pascals
Mass number
47. 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.
Atomic number
Magnitude
Radian
Destructive interference
48. The spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Refracted ray
Electromagnetic spectrum
Medium
Rutherford nuclear model
49. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Momentum
Alpha decay
Reflection
Pulley
50. The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction - fission or fusion is rapidly transferred to a large number of atoms - releasing tremendous amounts of ene
Chain reaction
Inertia
Focal point
Component