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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. 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.
Pendulum
Law of reflection
Focal point
Thermal equilibrium
2. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Centripetal acceleration
Angle of incidence
Mole
Newton's Second Law
3. 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.
Real image
Photoelectric effect
Universal gas constant
Electromagnetic induction
4. Two materials are in thermal equilibrium if they are at the same temperature.
Acceleration
Thermal equilibrium
Weber
Moment of inertia
5. 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.
Heat
Maxima
Ideal gas law
Conservation of Angular Momentum
6. F = ma. The net force - F - acting on an object causes the object to accelerate - a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely proportional to the mass - m - of the object.
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7. A device that converts mechanical energy to electrical energy by rotating a coil in a magnetic field; sometimes called a "dynamo."
Kinetic theory of gases
Electric generator
Sine
Meson
8. A device made of two coils - which converts current of one voltage into current of another voltage. In a step-up transformer - the primary coil has fewer turns than the secondary - thus increasing the voltage. In a step-down transformer - the seconda
Transformer
Zeroth Law of Thermodynamics
Quark
Activity
9. 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
Weak nuclear force
Collision
Destructive interference
Center of mass
10. 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
Unit vector
Nuclear fission
Directly proportional
Coefficient of kinetic friction
11. A small particle-like bundle of electromagnetic radiation.
Photon
Incident ray
Cosine
Speed
12. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Index of refraction
Oscillation
Centripetal force
Acceleration
13. Kinematics is the study and description of the motion of objects.
Total internal reflection
Kinematics
Angle of refraction
Component
14. There are a few versions of this law. One is that heat flows spontaneously from hot to cold - but not in the reverse direction. Another is that there is no such thing as a 100% efficient heat engine. A third states that the entropy - or disorder - of
Isotope
Second Law of Thermodynamics
Kinetic friction
Centripetal acceleration
15. A conserved scalar quantity associated with the state or condition of an object or system of objects. We can roughly define energy as the capacity for an object or system to do work. There are many different types of energy - such as kinetic energy -
Energy
Component
Meson
Tension force
16. A negatively charged particle that orbits the nucleus of the atom.
Conduction
Centripetal acceleration
Electron
Angle of reflection
17. A form of radioactive decay where a heavy element ejects a beta particle and a neutrino - becoming a lighter element in the process.
Cross product
Constructive interference
Diffraction
Beta decay
18. The path of each planet around the sun is an ellipse with the sun at one focus.
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19. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Focal point
Real image
Superposition
Decibel
20. The energy of the molecules that make up an object. It is related to heat - which is the amount of energy transferred from one object to another object that is a different temperature.
Entropy
Heat transfer
Thermal energy
Decibel
21. A coefficient that tells how much the volume of a solid will change when it is heated or cooled.
Coefficient of volume expansion
Free
Equilibrium position
Inelastic collision
22. 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.
Angular velocity
Mole
Harmonic series
Newton's Law of Universal Gravitation
23. An object that retains its overall shape - meaning that the particles that make up the rigid body stay in the same position relative to one another.
Significant digits
Neutrino
Rigid body
Weak nuclear force
24. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Angular velocity
Traveling waves
Torque
Radius of curvature
25. 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
Joule
Cross product
Pulley
Heat engine
26. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Temperature
Boiling point
Kelvin
Frequency
27. 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
Rotational kinetic energy
Wave
Electromagnetic induction
Direction
28. A logorithmic unit for measuring the volume of sound - which is the square of the amplitude of sound waves.
Newton's Second Law
Inclined plane
Medium
Decibel
29. 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.
Meson
Alpha particle
Real image
Collision
30. The energy stored in a thermodynamic system.
Angle of refraction
Internal energy
Force
Spring constant
31. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Work
Restoring force
Crest
Free
32. The ray of light that is refracted through a surface into a different medium.
Atom
Refracted ray
Pressure
Refraction
33. The force between two surfaces that are not moving relative to one another. The force of static friction is parallel to the plane of contact between the two objects and resists the force pushing or pulling on the object.
Electric generator
Static friction
Neutron number
Latent heat of fusion
34. To every action - there is an equal and opposite reaction. If an object A exerts a force on another object B - B will exert on A a force equal in magnitude and opposite in direction to the force exerted by A.
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35. 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).
Margin of error
Magnetic flux
Mass defect
Calorie
36. 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.
Cosine
Radioactive decay
Ideal gas law
Angular acceleration
37. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Constant of proportionality
Focal point
Rotational motion
Angular velocity
38. The amount of heat necessary for a material undergoing sublimation to make a phase change from gas to solid or solid to gas - without a change in temperature.
De Broglie wavelength
Magnitude
Latent heat of sublimation
Convex lens
39. The name of an electron released from the surface of a metal due to the photoelectric effect.
Gamma decay
Destructive interference
Photoelectron
Deposition
40. The angle between a refracted ray and the line normal to the surface.
Kinetic friction
Total internal reflection
Loudness
Angle of refraction
41. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Law of conservation of energy
Decibel
Specific heat
Atom
42. 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.
Zeroth Law of Thermodynamics
Kelvin
Focal length
Total internal reflection
43. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Decibel
Translational motion
Weber
Scalar
44. A constant in the numerator of a formula.
Gold foil experiment
Pendulum
Constant of proportionality
Incident ray
45. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Component
Restoring force
Photon
Efficiency
46. 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
Cycle
Decibel
Electromagnetic induction
Axis of rotation
47. The constant of proportionality in Newton's Law of Gravitation. It reflects the proportion of the gravitational force and - the product of two particles' masses divided by the square of the bodies' separation. N · m2/kg2.
Real image
Isotope
Gravitational constant
Sound
48. A force caused by the roughness of two materials in contact - deformations in the materials - and a molecular attraction between the materials. Frictional forces are always parallel to the plane of contact between two surfaces and opposite the direct
Angular displacement
Basis vector
Frictional force
Latent heat of transformation
49. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Power
Pressure
Refraction
Crest
50. A measurement of a body's inertia - or resistance to being accelerated.
Reflected ray
Mass
Basis vector
Static friction