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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 machine that operates by taking heat from a hot place - doing some work with that heat - and then exhausting the rest of the heat into a cool place. The internal combustion engine of a car is an example of a heat engine.
Conservation of momentum
Lenz's Law
Heat engine
Spring
2. 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.
Real image
Pendulum
Oscillation
Diffraction
3. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Latent heat of vaporization
Work function
Angular period
Coefficient of volume expansion
4. The state of a nonrotating object upon whom the net torque acting is zero.
Boyle's Law
Uniform circular motion
Destructive interference
Equilibrium
5. In an interference or diffraction pattern - the places where there is the most light.
Inertial reference frame
Quark
Maxima
Conservation of momentum
6. The amount of heat of a material required to raise the temperature of either one kilogram or one gram of that material by one degree Celsius. Different units may be used depending on whether specific heat is measured in s of grams or kilograms - and
Elastic collision
Rotational motion
Specific heat
Beta particle
7. The angle between a reflected ray and the normal.
Activity
Reflected ray
Angle of reflection
Rotational kinetic energy
8. 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.
Mass defect
Longitudinal waves
Frequency
Doppler shift
9. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Latent heat of sublimation
Mass defect
Scalar
Newton
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
Completely inelastic collision
Nuclear fission
Beta particle
Snell's Law
11. 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.
Radioactive decay
Angle of incidence
Momentum
Threshold frequency
12. 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.
Newton's First Law
Decay constant
Kinetic friction
Uncertainty principle
13. 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 static friction
Mass defect
Kinetic friction
Kinetic theory of gases
14. A constant - - not to be confused with wavelength - that defines the speed at which a radioactive element undergoes decay. The greater is - the faster the element decays.
Decay constant
Kelvin
Chain reaction
Kinetic friction
15. 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
Acceleration
Transverse waves
Right-hand rule
Newton
16. A logorithmic unit for measuring the volume of sound - which is the square of the amplitude of sound waves.
Work function
Photoelectron
Decibel
Pressure
17. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Weightlessness
Sound
Photoelectric effect
Dynamics
18. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Simple harmonic oscillator
Boiling point
Melting point
Meson
19. A vector quantity defined as the rate of change of the velocity vector with time.
Lenz's Law
Pendulum
Acceleration
Beats
20. 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 -
Convex mirror
Celsius
Energy
Significant digits
21. 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.
Tail
Basis vector
Conservation of Angular Momentum
Charles's Law
22. 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.
Convex lens
Crest
Reflected ray
Index of refraction
23. The lowest theoretical temperature a material can have - where the molecules that make up the material have no kinetic energy. Absolute zero is reached at 0 K or -273º C.
Coefficient of linear expansion
Latent heat of vaporization
Node
Absolute zero
24. An experiment in 1879 that showed that the speed of light is constant to all observers. Einstein used the results of this experiment as support for his theory of special relativity.
Pressure
Completely inelastic collision
Diffraction grating
Michelson-Morley experiment
25. 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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26. 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.
Traveling waves
Translational kinetic energy
Wavelength
Impulse
27. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Celsius
Uniform circular motion
Destructive interference
Tip
28. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Radioactive decay
Pulley
Neutron number
Photon
29. A body or set of bodies that we choose to analyze as a group.
Cycle
Right-hand rule
Principal axis
System
30. 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
Heat engine
Weak nuclear force
Cycle
31. 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.
Quark
Period
Tangent
Kelvin
32. The force transmitted along a rope or cable.
Latent heat of sublimation
Scalar
Unit vector
Tension force
33. 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
Newton's Second Law
Sine
Second Law of Thermodynamics
Angular acceleration
34. The stable position of a system where the net force acting on the object is zero.
Gravitational constant
Dynamics
Translational kinetic energy
Equilibrium position
35. A system that no external net force acts upon. Objects within the system may exert forces upon one another - but they cannot receive any impulse from outside forces. Momentum is conserved in isolated systems.
Cosine
Isolated system
Angular displacement
Angular frequency
36. Two materials are in thermal equilibrium if they are at the same temperature.
Lenz's Law
Boiling point
Significant digits
Thermal equilibrium
37. 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
Collision
Sound
Cross product
Tension force
38. 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
Coefficient of linear expansion
Harmonic series
Magnification
39. The points midway between nodes on a standing wave - where the oscillations are largest.
Mole
Antinode
Inelastic collision
Conduction
40. 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.
Electron
Scalar
Gamma decay
Activity
41. The ray of light that is reflected from a mirror or other reflecting surface.
Gravitational Potential Energy
Photon
Completely inelastic collision
Reflected ray
42. Energy cannot be made or destroyed; energy can only be changed from one place to another or from one form to another.
Kinematics
Distance
Law of conservation of energy
Collision
43. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Deposition
Joule
Coefficient of kinetic friction
Gravitational constant
44. 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.
Wave speed
Traveling waves
Beta particle
Static friction
45. The points on a standing wave where total destructive interference causes the medium to remain fixed at its equilibrium position.
Equilibrium position
Virtual image
Node
Coefficient of volume expansion
46. 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.
Inertial reference frame
Distance
Electromagnetic spectrum
Isotope
47. A negatively charged particle that orbits the nucleus of the atom.
Electron
Simple harmonic oscillator
Newton's Third Law
Vector
48. The distance between successive wave crests - or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Angle of refraction
Thermal equilibrium
Spring
Wavelength
49. A rough approximation of how gases work - that is quite accurate in everyday conditions. According to the kinetic theory - gases are made up of tiny - round molecules that move about in accordance with Newton's Laws - and collide with one another and
Electromagnetic induction
Kinetic theory of gases
Angular acceleration
Angular displacement
50. Two oscillators that have the same frequency and amplitude - but reach their maximum displacements at different times - are said to have different phases. Similarly - two waves are in phase if their crests and troughs line up exactly - and they are o
Cosine
Static friction
Phase
Strong nuclear force