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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 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.
Constructive interference
Index of refraction
Instantaneous velocity
Radiation
2. The longest side of a right triangle - opposite to the right angle.
Hypotenuse
Power
Trough
Charles's Law
3. The emf created by the motion of a charge through a magnetic field.
Convex mirror
Diffraction
Motional emf
Decay constant
4. A transfer of thermal energy. We don't speak about systems "having" heat - but about their "transferring" heat - much in the way that dynamical systems don't "have" work - but rather "do" work.
Dispersion
Center of mass
Kinetic energy
Heat
5. In an interference or diffraction pattern - the places where there is the least light.
Fundamental
Force
Minima
Significant digits
6. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.
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7. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Angular momentum
Ground state
Conservation of Angular Momentum
Angle of refraction
8. When objects collide - each object feels a force for a short amount of time. This force imparts an impulse - or changes the momentum of each of the colliding objects. The momentum of a system is conserved in all kinds of collisions. Kinetic energy is
Isotope
Conduction
Momentum
Collision
9. 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
Equilibrium position
Phase
Amplitude
Conservation of Angular Momentum
10. The path of each planet around the sun is an ellipse with the sun at one focus.
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11. The motion of a body in a circular path with constant speed.
Constant of proportionality
Harmonic series
Uniform circular motion
Mass
12. If the net torque acting on a rigid body is zero - then the angular momentum of the body is constant or conserved.
Work
Collision
Conservation of Angular Momentum
Kinematics
13. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Orbit
Uniform circular motion
Beta particle
Wavelength
14. The straight line that runs through the focal point and the vertex of a mirror or lens.
Coefficient of linear expansion
Gravitational Potential Energy
Principal axis
Dot product
15. A vector quantity defined as the rate of change of the velocity vector with time.
Dot product
Convex lens
Spectroscope
Acceleration
16. A transfer of thermal energy from one system to another.
Gamma ray
Heat transfer
Velocity
Normal force
17. 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.
Celsius
Mass number
Law of reflection
Component
18. The mass difference between a nucleus and the sum of the masses of the constituent protons and neutrons.
Atomic number
Translational motion
De Broglie wavelength
Mass defect
19. 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
Convection
Inertial reference frame
Electronvolt
Traveling waves
20. 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.
Coefficient of static friction
Amplitude
Phase
Direction
21. 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.
Heat
Kinetic friction
Angular displacement
Medium
22. Also called a converging lens - a lens that is thicker in the middle than at the edges. Convex lenses refract light through a focal point.
Loudness
Dispersion
Convex lens
Orbit
23. The standing wave with the lowest frequency that is supported by a string with both ends tied down is called the fundamental - or resonance - of the string. The wavelength of the fundamental is twice the length of the string - .
Momentum
Fundamental
Legs
Heat engine
24. 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
Convex mirror
Threshold frequency
Potential energy
Inversely proportional
25. The units of frequency - defined as inverse-seconds (1 Hz = 1 s-1). "Hertz" can be used interchangeably with "cycles per second."
Convex lens
Hertz (Hz)
Conservation of Angular Momentum
Calorie
26. The property by which a changing current in one coil of wire induces an emf in another.
Mutual Induction
Nucleus
Standing wave
Translational motion
27. If a line is drawn from the sun to the planet - then the area swept out by this line in a given time interval is constant.
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28. A scalar quantity. If an object is moved from point A to point B in space along path AB - the distance that the object has traveled is the length of the path AB. Distance is to be contrasted with displacement - which is simply a measure of the distan
Coefficient of static friction
Virtual image
Chain reaction
Distance
29. An object is called radioactive if it undergoes radioactive decay.
Radioactive decay
Radioactivity
Medium
Oscillation
30. The number - N - of neutrons in an atomic nucleus.
Neutron number
Tip
Mechanical energy
Half
31. The angle between a reflected ray and the normal.
Gamma decay
Inertia
Angle of reflection
Spectroscope
32. The coefficient of kinetic friction - - for two materials is the constant of proportionality between the normal force and the force of kinetic friction. It is always a number between zero and one.
Mass number
Decay constant
Lenz's Law
Coefficient of kinetic friction
33. 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.
Dynamics
Law of reflection
Wave speed
Lenz's Law
34. 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.
Absolute zero
Second Law of Thermodynamics
Mass number
Translational kinetic energy
35. The model of the atom according to which negatively charged electrons orbit a positively charged nucleus. This model was developed by Ernest Rutherford in light of the results from his gold foil experiment.
Rutherford nuclear model
Equilibrium
Quark
Cross product
36. Another word for the frequency of a sound wave.
Oscillation
Principal axis
Photoelectron
Pitch
37. 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.
Scalar
Inertia
Virtual image
Incident ray
38. The stable position of a system where the net force acting on the object is zero.
Directly proportional
Momentum
Inelastic collision
Equilibrium position
39. 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.
Focal length
Cosine
Decay constant
Meson
40. The bending of light at the corners of objects or as it passes through narrow slits or apertures.
Specific heat
Lenz's Law
Kinematic equations
Diffraction
41. A wave that interferes with its own reflection so as to produce oscillations which stand still - rather than traveling down the length of the medium. Standing waves on a string with both ends tied down make up the harmonic series.
Work
Wavelength
Standing wave
Polarization
42. Heat transfer via electromagnetic waves.
Nuclear fusion
Beta decay
Coherent light
Radiation
43. 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.
Distance
Boiling point
Concave lens
Period
44. A constant in the numerator of a formula.
Polarization
Kinematic equations
Constant of proportionality
Induced current
45. 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.
Critical angle
Alpha particle
Velocity
Newton's Second Law
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
Force
Concave lens
Lenz's Law
47. The unit of magnetic flux - equal to one T · m2.
Orbit
Weber
Speed
Boiling point
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.
Inversely proportional
Angular velocity
Celsius
Wavelength
49. 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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50. The separation of different color light via refraction.
Boyle's Law
Dispersion
Momentum
Beats