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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. When a solid - liquid - or gas changes into another phase of matter.
Antinode
Sublimation
Phase change
Kinetic energy
2. 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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3. Heat transfer by molecular collisions.
Conduction
Uncertainty principle
Focal point
Chain reaction
4. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Real image
Compression
Superposition
Angle of reflection
5. Waves produced by a source that is moving with respect to the observer will seem to have a higher frequency and smaller wavelength if the motion is towards the observer - and a lower frequency and longer wavelength if the motion is away from the obse
Equilibrium position
Doppler shift
Mass
Sublimation
6. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Wave
Half
Mechanical energy
Angular frequency
7. The angle between a reflected ray and the normal.
Reflection
Electromagnetic spectrum
Angle of reflection
Force
8. 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
Amplitude
System
Legs
Wave speed
9. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Fundamental
Loudness
Coefficient of volume expansion
Deposition
10. A wave on a string that is tied to a pole at one end will reflect back toward its source - producing a wave that is the mirror-image of the original and which travels in the opposite direction.
Spring
Reflect
Power
Newton
11. In the graphical representation of vectors - the tail of the arrow is the blunt end (the end without a point).
Tail
Induced current
Incident ray
Coefficient of volume expansion
12. Indicates how "bouncy" or "stiff" a spring is. More specifically - the spring constant - k - is the constant of proportionality between the restoring force exerted by the spring - and the spring's displacement from equilibrium. The greater the value
Spring constant
Activity
Principal axis
Displacement
13. 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
Angular position
Weightlessness
Phase
14. 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
Center of curvature
Frictional force
Heat transfer
Constructive interference
15. 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
Charles's Law
Virtual image
Antinode
Directly proportional
16. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Wave
Translational kinetic energy
Inelastic collision
Pascals
17. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Newton
Loudness
Pitch
Spring
18. Light such that all of the associated waves have the same wavelength and are in phase.
Convex mirror
Isolated system
Coherent light
Quark
19. 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.
Absolute zero
Kinetic energy
Tangent
Focal length
20. A scalar quantity that tells us how fast an object is moving. It measures the rate of change in distance over time. Speed is to be contrasted with velocity in that there is no direction associated with speed.
Equilibrium
Concave lens
Speed
Sine
21. 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.
Node
Kinematic equations
Gravitational Potential Energy
Activity
22. The amount of energy that metal must absorb before it can release a photoelectron from the metal.
Snell's Law
Michelson-Morley experiment
Latent heat of sublimation
Work function
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 - .
Fundamental
Weightlessness
Speed
Charles's Law
24. 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).
Convection
Optics
Coefficient of static friction
System
25. The constant of proportionality in Newton's Law of Gravitation. It reflects the proportion of the gravitational force and - the product of two particles' masses divided by the square of the bodies' separation. N · m2/kg2.
Focal length
Gravitational constant
Principal axis
Impulse
26. The substance that is displaced as a wave propagates through it. Air is the medium for sound waves - the string is the medium of transverse waves on a string - and water is the medium for ocean waves. Note that even if the waves in a given medium tra
Dispersion
Right-hand rule
Medium
Kinetic theory of gases
27. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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28. 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
Pressure
Transformer
Angular frequency
Heat
29. The force transmitted along a rope or cable.
Tension force
Half
Neutron
Snell's Law
30. 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.
Static friction
Motional emf
Kelvin
Gravitational Potential Energy
31. The energy of a particle rotating around an axis.
Translational motion
Rotational kinetic energy
Refraction
Wave
32. 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.
Kinematics
Pascals
Velocity
Celsius
33. In an interference or diffraction pattern - the places where there is the most light.
Mechanical energy
Longitudinal waves
Maxima
Rarefaction
34. 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
Transformer
Reflected ray
Alpha particle
Collision
35. The line that every particle in the rotating rigid body circles about.
Potential energy
Atomic number
Axis of rotation
Photoelectron
36. 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
Focal point
Internal energy
Transverse waves
Phase
37. The straight line that runs through the focal point and the vertex of a mirror or lens.
Principal axis
Weightlessness
Photoelectric effect
Sublimation
38. An electromagnetic wave of very high frequency.
Sine
Induced current
Gamma ray
Mole
39. 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.
Photoelectron
Destructive interference
Michelson-Morley experiment
Equilibrium
40. 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.
Wave
Medium
Significant digits
Coefficient of static friction
41. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Refraction
Scalar
Coefficient of static friction
Temperature
42. The amount of heat needed to raise the temperature of one gram of water by one degree Celsius. 1 cal = 4.19 J.
Weight
Calorie
Reflection
Kinetic energy
43. 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.
Inclined plane
Rutherford nuclear model
Spring
Component
44. F = ma. The net force - F - acting on an object causes the object to accelerate - a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely proportional to the mass - m - of the object.
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45. A back-and-forth movement about an equilibrium position. Springs - pendulums - and other oscillators experience harmonic motion.
Oscillation
Strong nuclear force
Destructive interference
Motional emf
46. 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.
Period
Law of reflection
Destructive interference
Latent heat of transformation
47. 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.
Tip
Decay constant
Uncertainty principle
Tangent
48. The property by which a changing current in one coil of wire induces an emf in another.
Joule
Mass
Rotational motion
Mutual Induction
49. The path of each planet around the sun is an ellipse with the sun at one focus.
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50. The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Static friction
Snell's Law
Critical angle
Weak nuclear force