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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 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.
Cosine
Radiation
Concave mirror
Amplitude
2. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Loudness
Beats
Pascals
Work function
3. 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.
Neutron
Momentum
Newton's Law of Universal Gravitation
Convex lens
4. 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
Sound
Axis of rotation
Half
5. 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
Gravitational constant
Inertial reference frame
Translational motion
Spring
6. A unit vector is a vector with length 1.
Vertex
Motional emf
Hertz (Hz)
Unit vector
7. A constant in the numerator of a formula.
Radian
Newton's First Law
Constant of proportionality
Kinematic equations
8. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Faraday's Law
Dot product
Newton
9. A transverse traveling wave created by the oscillations of an electric field and a magnetic field. Electromagnetic waves travel at the speed of light - m/s. Examples include microwaves - X rays - and visible light.
Destructive interference
Pulley
Scalar
Electromagnetic wave
10. 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.
Thermal equilibrium
Mass number
Conservation of momentum
Work-energy theorem
11. 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.
De Broglie wavelength
Angular momentum
Convex lens
Michelson-Morley experiment
12. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Mass
Free
Simple harmonic oscillator
Longitudinal waves
13. The line perpendicular to a surface. There is only one normal for any given surface.
Inelastic collision
Angular position
Efficiency
Normal
14. A process that aligns a wave of light to oscillate in one dimension rather than two.
Kepler's First Law
Polarization
Focal length
Cosine
15. 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
Displacement
Spectroscope
Transverse waves
Rotational motion
16. An area of high air pressure that acts as the wave trough for sound waves. The spacing between successive rarefactions is the wavelength of sound - and the number of successive areas of rarefaction that arrive at the ear per second is the frequency -
Heat engine
Electron
Component
Rarefaction
17. 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
Bohr atomic model
Transformer
Quark
Hooke's Law
18. The five equations used to solve problems in kinematics in one dimension with uniform acceleration.
Angular acceleration
Destructive interference
Rigid body
Kinematic equations
19. 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.
Period
Spectroscope
Normal
Cosine
20. A coefficient that tells how much the volume of a solid will change when it is heated or cooled.
Pascals
Crest
Impulse
Coefficient of volume expansion
21. A model for the atom developed in 1913 by Niels Bohr. According to this model - the electrons orbiting a nucleus can only orbit at certain particular radii. Excited electrons may jump to a more distant radii and then return to their ground state - em
Margin of error
Planck's constant
Photoelectron
Bohr atomic model
22. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Mass
Spring
Superposition
Coefficient of static friction
23. 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.
Loudness
Strong nuclear force
Instantaneous velocity
Absolute zero
24. 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
Superposition
Translational motion
Margin of error
25. The property by which a charge moving in a magnetic field creates an electric field.
Compression
Nuclear fusion
Angle of refraction
Electromagnetic induction
26. 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.
Universal gas constant
Mutual Induction
Conservation of momentum
Photoelectron
27. Two quantities are directly proportional if an increase in one results in a proportional increase in the other - and a decrease in one results in a proportional decrease in the other. In a formula defining a certain quantity - those quantities to whi
Total internal reflection
Faraday's Law
Directly proportional
Free
28. 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
Planck's constant
Pendulum
Law of reflection
Phase
29. The force transmitted along a rope or cable.
Cosine
Tension force
Rigid body
Motional emf
30. A system with many parts in periodic - or repetitive - motion. The oscillations in one part cause vibrations in nearby parts.
Pascals
Wave
Normal
Angle of refraction
31. Life- The amount of time it takes for one-half of a radioactive sample to decay.
First Law of Thermodynamics
Impulse
Half
Gold foil experiment
32. In an interference or diffraction pattern - the places where there is the most light.
Newton's Second Law
Cycle
Maxima
Kepler's Third Law
33. Objects that experience oscillatory or simple harmonic motion when distorted. Their motion is described by Hooke's Law.
Sound
Proton
Spring
Beta particle
34. The reaction force of the ground - a table - etc. - when an object is placed upon it. The normal force is a direct consequence of Newton's Third Law: when an object is placed on the ground - the ground pushes back with the same force that it is pushe
Kinetic friction
Normal force
Hertz (Hz)
Wave speed
35. The path of each planet around the sun is an ellipse with the sun at one focus.
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36. 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.
Electromagnetic wave
Kinematic equations
Angular position
Electronvolt
37. 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).
Kepler's First Law
Angle of incidence
Optics
Activity
38. A negatively charged particle that orbits the nucleus of the atom.
Electron
Angular period
Polarization
Lenz's Law
39. The square of the amplitude of a sound wave is called the sound's loudness - or volume.
Loudness
Destructive interference
Doppler shift
Electronvolt
40. Another word for the frequency of a sound wave.
Pitch
Legs
Amplitude
Equilibrium position
41. 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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42. The building blocks of all matter - atoms are made up of a nucleus consisting of protons and neutrons - and a number of electrons that orbit the nucleus. An electrically neutral atom has as many protons as it has electrons.
Nuclear fission
Atom
Magnitude
Translational motion
43. 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.
Beats
Work
Isolated system
Universal gas constant
44. The number - N - of neutrons in an atomic nucleus.
Atomic number
Orbit
Neutron number
Rigid body
45. Energy associated with an object's position in space - or configuration in relation to other objects. This is a latent form of energy - where the amount of potential energy reflects the amount of energy that potentially could be released as kinetic e
Thermal equilibrium
Potential energy
Cross product
Third Law of Thermodynamics
46. 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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47. 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.
Translational kinetic energy
Power
Traveling waves
Thermal energy
48. 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.
Kinetic friction
Thermal equilibrium
Pressure
Torque
49. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Magnification
Sound
Transformer
Nuclear fission
50. A vector quantity - - that reflects the change of angular displacement with time - and is typically given in units of rad/s. To find the direction of the angular velocity vector - take your right hand and curl your fingers along the particle or body
Angular velocity
Work-energy theorem
Margin of error
Convex lens