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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 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.
Weightlessness
Inversely proportional
De Broglie wavelength
Gamma decay
2. The force of gravity - F - between two particles of mass and - separated by a distance r - has a magnitude of - where G is the gravitational constant. The force is directed along the line joining the two particles.
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3. For an oscillating spring - the restoring force exerted by the spring is directly proportional to the displacement. That is - the more the spring is displaced - the stronger the force that will pull toward the equilibrium position. This law is expres
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4. The points on a standing wave where total destructive interference causes the medium to remain fixed at its equilibrium position.
Direction
Pressure
Node
Center of mass
5. The points of maximum displacement along a wave. In traveling waves - the crests move in the direction of propagation of the wave. The crests of standing waves - also called anti-nodes - remain in one place.
Tip
Transverse waves
Focal length
Crest
6. 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
Electric generator
Direction
Newton's First Law
Cosine
7. 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.
Virtual image
Boiling point
Radioactive decay
Inelastic collision
8. 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.
Atomic number
Law of reflection
Total internal reflection
Hypotenuse
9. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Kelvin
Normal
Hertz (Hz)
Static friction
10. 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.
Rutherford nuclear model
Magnitude
Sound
Virtual image
11. Also called a diverging lens - a lens that is thinner in the middle than at the edges. Concave lenses refract light away from a focal point.
Concave lens
Work function
Velocity
Momentum
12. 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.
Pascals
Kepler's Second Law
Momentum
Wavelength
13. 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
Cross product
Kinetic friction
Harmonic series
Gamma ray
14. The motion of a body in a circular path with constant speed.
Spring constant
Frictional force
Wave
Uniform circular motion
15. The energy of a particle rotating around an axis.
Newton's Third Law
Chain reaction
Alpha particle
Rotational kinetic energy
16. A collision in which momentum is conserved but kinetic energy is not.
Kinetic energy
Sound
Inelastic collision
Nuclear fusion
17. An electromagnetic wave of very high frequency.
Uniform circular motion
Kinematics
Gamma ray
Polarization
18. A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.
Pascals
Dot product
Moment of inertia
Inclined plane
19. A positively charged particle that - along with the neutron - occupies the nucleus of the atom.
Angular momentum
Radiation
Decay constant
Proton
20. Heat transfer via electromagnetic waves.
Kinematic equations
Radiation
Reflect
Equilibrium position
21. The separation of different color light via refraction.
Convection
Beta decay
Collision
Dispersion
22. A measure of the average kinetic energy of the molecules in a system. Temperature is related to heat by the specific heat of a given substance.
Tangent
Pulley
Temperature
Wave
23. The movement of a rigid body's center of mass in space.
Translational motion
Proton
Fundamental
Sine
24. 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.
Significant digits
Index of refraction
Cosine
Constant of proportionality
25. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Newton's Third Law
Reflected ray
Constructive interference
Conservation of Angular Momentum
26. An object cannot be cooled to absolute zero.
Cosine
Third Law of Thermodynamics
Planck's constant
Chain reaction
27. The force transmitted along a rope or cable.
Static friction
Traveling waves
Tension force
Newton's Second Law
28. 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.
Loudness
Tangent
Ground state
Phase
29. The points midway between nodes on a standing wave - where the oscillations are largest.
Total internal reflection
Antinode
Alpha decay
Directly proportional
30. 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).
Boiling point
Optics
Displacement
Gamma ray
31. 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.
Reflected ray
Thermal equilibrium
Work
Angular momentum
32. A collision in which both kinetic energy and momentum are conserved.
Pulley
Elastic collision
Sine
Alpha particle
33. The disorder of a system.
Isotope
Trough
Entropy
Direction
34. A measurement of a body's inertia - or resistance to being accelerated.
Mass
Legs
Alpha particle
Collision
35. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Nucleus
Mass defect
Refracted ray
Kinematic equations
36. 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.
Latent heat of fusion
Refracted ray
Activity
Photoelectron
37. 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
Snell's Law
Collision
Absolute zero
Kepler's Second Law
38. The principle stating that for any isolated system - linear momentum is constant with time.
Newton's Second Law
Conservation of momentum
Photoelectron
Electronvolt
39. A nuclear reaction in which a high-energy neutron bombards a heavy - unstable atomic nucleus - causing it to split into two smaller nuclei - and releasing some neutrons and a vast amount of energy at the same time
Atom
Nuclear fission
Restoring force
Internal energy
40. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Refracted ray
Gravitational constant
Law of conservation of energy
Concave mirror
41. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Isotope
Restoring force
Virtual image
Decay constant
42. 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.
Snell's Law
Atomic number
Hertz (Hz)
Convex mirror
43. 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.
Threshold frequency
Destructive interference
Uncertainty principle
Absolute zero
44. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Convection
Work function
Uncertainty principle
Power
45. Atoms of the same element may have different numbers of neutrons and therefore different masses. Atoms of the same element but with different numbers of neutrons are called isotopes of the same element.
Isotope
Universal gas constant
Absolute zero
Coefficient of linear expansion
46. 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
Induced current
Mechanical energy
Spring
47. 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
Weak nuclear force
Cross product
Medium
48. 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
Weber
Neutrino
Newton
49. 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.
Mole
Crest
Weak nuclear force
Trough
50. 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 -
Equilibrium
Tension force
Fundamental
Compression