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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 acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.
Centripetal acceleration
Trough
Vertex
Kinetic friction
2. 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.
Wave speed
Traveling waves
Coefficient of static friction
Tail
3. The points of maximum negative displacement along a wave. They are the opposite of wave crests.
Conservation of Angular Momentum
Trough
Diffraction
Compression
4. 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.
Tension force
Newton
Longitudinal waves
Destructive interference
5. 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
Frictional force
Momentum
Reflect
Internal energy
6. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Uniform circular motion
Internal energy
Hertz (Hz)
Mutual Induction
7. States that the current induced in a circuit by a change in magnetic flux is in the direction that will oppose that change in flux. Using the right-hand rule - point your thumb in the opposite direction of the change in magnetic flux. The direction y
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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
Gold foil experiment
Constant of proportionality
Transformer
Universal gas constant
9. The name of an electron released from the surface of a metal due to the photoelectric effect.
Medium
Temperature
Photoelectron
Doppler shift
10. 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.
Uncertainty principle
Period
Fundamental
Node
11. In reference to oscillation - amplitude is the maximum displacement of the oscillator from its equilibrium position. Amplitude tells how far an oscillator is swinging back and forth. In periodic motion - amplitude is the maximum displacement in each
Angular velocity
Latent heat of vaporization
Amplitude
De Broglie wavelength
12. A property of a metal - the minimum frequency of electromagnetic radiation that is necessary to release photoelectrons from that metal.
Strong nuclear force
Threshold frequency
Wavelength
Convex mirror
13. 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.
Latent heat of sublimation
Work
Angle of reflection
Nucleus
14. Two materials are in thermal equilibrium if they are at the same temperature.
Standing wave
Thermal equilibrium
Coefficient of linear expansion
Heat transfer
15. 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.
Mole
Focal length
Angular position
Antinode
16. The experience of being in free fall. If you are in a satellite - elevator - or other free-falling object - then you have a weight of zero Newtons relative to that object.
Index of refraction
Weightlessness
Mole
Induced current
17. The coefficient of static friction - for two materials is the constant of proportionality between the normal force and the maximum force of static friction. It is always a number between zero and one.
Vector
Photon
Work function
Coefficient of static friction
18. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Motional emf
Convex mirror
Uniform circular motion
Beta particle
19. The point of a mirror or lens where all light that runs parallel to the principal axis will be focused. Concave mirrors and convex lenses are designed to focus light into the focal point. Convex mirrors and concave lenses focus light away from the fo
Focal point
Internal energy
Lenz's Law
Proton
20. 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).
Strong nuclear force
Optics
Newton's Law of Universal Gravitation
Absolute zero
21. 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.
Mass number
Boyle's Law
Pendulum
Melting point
22. 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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23. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Hooke's Law
Velocity
Work function
Centripetal force
24. The building blocks of all matter - quarks are the constituent parts of protons - neutrons - and mesons.
Heat engine
Boiling point
Quark
Focal length
25. When an object is held in circular motion about a massive body - like a planet or a sun - due to the force of gravity - that object is said to be in orbit. Objects in orbit are in perpetual free fall - and so are therefore weightless.
Orbit
Latent heat of fusion
Inelastic collision
Normal force
26. The state of a nonrotating object upon whom the net torque acting is zero.
Refracted ray
Translational motion
Equilibrium
Inclined plane
27. With spherical mirrors - the radius of the sphere of which the mirror is a part.
Heat engine
Superposition
Radius of curvature
Wave speed
28. The principle stating that for any isolated system - linear momentum is constant with time.
Maxima
Lenz's Law
Conservation of momentum
Ideal gas law
29. The motion of a body in a circular path with constant speed.
Proton
Isotope
Antinode
Uniform circular motion
30. 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
Nuclear fission
Normal
Pascals
Focal length
31. The separation of different color light via refraction.
Dispersion
Hertz (Hz)
Conservation of Angular Momentum
Speed
32. 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
Directly proportional
Kelvin
Conservation of Angular Momentum
Sublimation
33. A neutrally charged particle that - along with protons - constitutes the nucleus of an atom.
Lenz's Law
Chain reaction
Law of reflection
Neutron
34. A collision in which momentum is conserved but kinetic energy is not.
Simple harmonic oscillator
Quark
Electromagnetic induction
Inelastic collision
35. 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.
Sine
Moment of inertia
Boyle's Law
Coefficient of static friction
36. 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.
Mechanical energy
Trough
Conservation of momentum
Significant digits
37. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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38. An image created by a mirror or lens in such a way that light does actually come from where the image appears to be. If you place a screen in front of a real image - the image will be projected onto the screen.
Angle of refraction
Refracted ray
Rotational motion
Real image
39. A vector quantity defined as the rate of change of the displacement vector with time. It is to be contrasted with speed - which is a scalar quantity for which no direction is specified.
Inelastic collision
Beta decay
Velocity
Coefficient of static friction
40. 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.
Convex mirror
Wavelength
Sound
Momentum
41. 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 -
Rotational kinetic energy
Total internal reflection
Energy
Nuclear fission
42. A measurement of a body's inertia - or resistance to being accelerated.
Pendulum
Nuclear fusion
Mass
Refraction
43. 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
Direction
Superposition
Kinetic energy
Concave lens
44. A push or a pull that causes an object to accelerate.
Angular displacement
Electric generator
Joule
Force
45. 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
Joule
Potential energy
Boiling point
46. A unit for measuring angles; also called a "rad." 2p rad = 360º.
Node
Radian
Kinetic theory of gases
Pitch
47. 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.
Boiling point
Planck's constant
Inversely proportional
Absolute zero
48. A vector quantity - equal to the rate of change of the angular velocity vector with time. It is typically given in units of rad/s2.
Newton's Law of Universal Gravitation
Crest
Angular acceleration
Scalar
49. 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.
Gravitational constant
Michelson-Morley experiment
Speed
Nuclear fission
50. A rigid body's resistance to being rotated. The moment of inertia for a single particle is MR2 - where M is the mass of the rigid body and R is the distance to the rotation axis. For rigid bodies - calculating the moment of inertia is more complicate
Weight
Mechanical energy
Isolated system
Moment of inertia