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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. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Axis of rotation
Power
Hooke's Law
Mass defect
2. The tendency of an object to remain at a constant velocity - or its resistance to being accelerated. Newton's First Law is alternatively called the Law of Inertia because it describes this tendency.
Inertia
Speed
Decay constant
Rutherford nuclear model
3. When electromagnetic radiation shines upon a metal - the surface of the metal releases energized electrons. The way in which these electrons are released contradicts classical theories of electromagnetic radiation and supports the quantum view accord
Strong nuclear force
Centripetal acceleration
Photoelectric effect
Equilibrium position
4. When two waves of slightly different frequencies interfere with one another - they produce a "beating" interference pattern that alternates between constructive (in-phase) and destructive (out-of-phase). In the case of sound waves - this sort of inte
Spring constant
Beats
De Broglie wavelength
Wave
5. 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.
Coefficient of linear expansion
Kinetic energy
Sound
Angular position
6. 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.
Pendulum
Unit vector
Absolute zero
Newton
7. When a light ray strikes a surface - the angle of incidence is the angle between the incident ray and the normal.
Impulse
Sound
Angle of incidence
Phase
8. 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.
Free
Half
Zeroth Law of Thermodynamics
Convex mirror
9. The property by which a charge moving in a magnetic field creates an electric field.
Inertia
Electromagnetic induction
Magnetic flux
Harmonic series
10. A collision in which both kinetic energy and momentum are conserved.
Heat
Compression
Elastic collision
Torque
11. 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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12. In a right triangle - the sine of a given angle is the length of the side opposite the angle divided by the length of the hypotenuse.
Newton's Second Law
Sine
Electromagnetic spectrum
Pulley
13. A vector quantity - L - that is the rotational analogue of linear momentum. For a single particle - the angular momentum is the cross product of the particle's displacement from the axis of rotation and the particle's linear momentum - . For a rigid
Uniform circular motion
Angular momentum
Pendulum
Spectroscope
14. The center of an atom - where the protons and neutrons reside. Electrons then orbit this nucleus.
Nucleus
Electronvolt
Nuclear fusion
Displacement
15. The temperature at which a material will change phase from solid to liquid or liquid to solid.
Kepler's Second Law
Boyle's Law
Normal force
Melting point
16. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Nuclear fusion
Beta particle
Reflected ray
Centripetal force
17. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.
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18. For a gas held at constant pressure - temperature and volume are directly proportional.
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19. 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.
Latent heat of sublimation
Scalar
Isotope
Beats
20. The distance between the focal point and the vertex of a mirror or lens. For concave mirrors and convex lenses - this number is positive. For convex mirrors and concave lenses - this number is negative.
Half
Concave mirror
Angle of refraction
Focal length
21. The energy stored in a thermodynamic system.
Faraday's Law
Weight
Doppler shift
Internal energy
22. 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
Gamma ray
Electromagnetic spectrum
Pascals
23. 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
Instantaneous velocity
Zeroth Law of Thermodynamics
Harmonic series
Work function
24. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Conservation of Angular Momentum
Angular displacement
Cross product
Zeroth Law of Thermodynamics
25. An electromagnetic wave of very high frequency.
Melting point
Angular period
Gamma ray
Maxima
26. The phenomenon of light bouncing off a surface - such as a mirror.
Angle of reflection
Tail
Reflection
Hertz (Hz)
27. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Gamma ray
Diffraction
Kinetic energy
Pascals
28. A form of vector multiplication - where two vectors are multiplied to produce a scalar. The dot product of two vectors - A and B - is expressed by the equation A · B = AB cos .
Direction
Dot product
Inversely proportional
Photon
29. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Induced current
Conservation of Angular Momentum
Uniform circular motion
Tip
30. 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.
Activity
Spring
De Broglie wavelength
Newton's Second Law
31. 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).
Activity
Magnetic flux
Centripetal acceleration
System
32. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Index of refraction
Moment of inertia
Pascals
Virtual image
33. The index of refraction n = c/v of a substance characterizes the speed of light in that substance - v. It also characterizes - by way of Snell's Law - the angle at which light refracts in that substance.
Index of refraction
Right-hand rule
Induced current
Angular displacement
34. A unit of measurement for energy on atomic levels. 1 eV = J.
Gamma decay
Centripetal acceleration
Electronvolt
Weight
35. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Boiling point
Coefficient of linear expansion
Harmonic series
Celsius
36. 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.
Sound
Basis vector
Neutron number
Inertial reference frame
37. The points midway between nodes on a standing wave - where the oscillations are largest.
Kinematics
Antinode
Medium
Latent heat of vaporization
38. The longest side of a right triangle - opposite to the right angle.
Thermal energy
Margin of error
Hypotenuse
Dot product
39. The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Electromagnetic wave
Tail
Centripetal acceleration
Refracted ray
40. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Coherent light
Displacement
Zeroth Law of Thermodynamics
Deposition
41. 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
Boyle's Law
Temperature
Neutron number
42. The bending of light as it passes from one medium to another. Light refracts toward the normal when going from a less dense medium into a denser medium and away from the normal when going from a denser medium into a less dense medium.
Refraction
Specific heat
Dispersion
Momentum
43. The ratio of the size of the image produced by a mirror or lens to the size of the original object. This number is negative if the image is upside-down.
Magnification
Newton's Second Law
Coefficient of static friction
Centripetal force
44. 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
Tip
Chain reaction
Transformer
Electronvolt
45. The cancellation of one wave by another wave that is exactly out of phase with the first. Despite the dramatic name of this phenomenon - nothing is "destroyed" by this interference—the two waves emerge intact once they have passed each other.
Pressure
Dynamics
Destructive interference
Inclined plane
46. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Hertz (Hz)
Scalar
Hooke's Law
Induced current
47. 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.
Boyle's Law
Uncertainty principle
Collision
Rotational motion
48. 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.
Superposition
Unit vector
Significant digits
Power
49. 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.
Nucleus
Efficiency
Temperature
Wave speed
50. The path of each planet around the sun is an ellipse with the sun at one focus.
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