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Test your basic knowledge |
SAT Subject Test: hysics
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Study First
Subjects
:
sat
,
science
,
physics
Instructions:
Answer 50 questions in 15 minutes.
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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 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
Elastic collision
Distance
Alpha particle
Crest
2. A neutrally charged particle that - along with protons - constitutes the nucleus of an atom.
Neutron
Period
Latent heat of fusion
System
3. The number of cycles executed by a system in one second. Frequency is the inverse of period - f = 1/T. Frequency is measured in hertz - Hz.
Pitch
Reflect
Frequency
Chain reaction
4. Energy associated with the state of motion. The translational kinetic energy of an object is given by the equation .
Angular momentum
Kinetic energy
Kepler's Third Law
Tail
5. A particle - which consists of two protons and two neutrons. It is identical to the nucleus of a helium atom and is ejected by heavy particles undergoing alpha decay.
Alpha particle
Legs
Latent heat of transformation
Force
6. 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.
Zeroth Law of Thermodynamics
Destructive interference
Normal force
Compression
7. The force transmitted along a rope or cable.
Tension force
Angular frequency
Inclined plane
Gravitational constant
8. The points of maximum displacement along a wave. In traveling waves - the crests move in the direction of propagation of the wave. The crests of standing waves - also called anti-nodes - remain in one place.
Crest
Pulley
Energy
Melting point
9. The amplification of one wave by another - identical wave of the same sign. Two constructively interfering waves are said to be "in phase."
Instantaneous velocity
Weight
Constructive interference
Sound
10. 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
Transformer
Photoelectric effect
Magnification
Chain reaction
11. 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
Lenz's Law
Directly proportional
Conservation of Angular Momentum
Proton
12. The phenomenon of light bouncing off a surface - such as a mirror.
Alpha particle
Maxima
Traveling waves
Reflection
13. 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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14. Body diagram- Illustrates the forces acting on an object - drawn as vectors originating from the center of the object.
Convex lens
Free
Work
Rotational kinetic energy
15. 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
Gravitational constant
Radian
Vector
16. Occurs when every point in the rigid body moves in a circular path around a line called the axis of rotation.
Rotational motion
Tail
Compression
Pendulum
17. The unit of magnetic flux - equal to one T · m2.
Mole
Kinetic energy
Weber
Beats
18. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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19. 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.
Proton
Heat
Temperature
Focal length
20. The process by which a solid turns directly into gas - because it cannot exist as a liquid at a certain pressure.
Mutual Induction
Basis vector
Sublimation
Gold foil experiment
21. 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.
Electromagnetic spectrum
Instantaneous velocity
Transformer
Constructive interference
22. Life- The amount of time it takes for one-half of a radioactive sample to decay.
Entropy
Half
Phase
Coherent light
23. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Pascals
Kinetic theory of gases
Instantaneous velocity
Sublimation
24. A quantity that possesses a magnitude but not a direction. Mass and length are common examples.
Planck's constant
Tangent
Magnitude
Scalar
25. 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.
Threshold frequency
Vector
Real image
Phase change
26. The process by which unstable nuclei spontaneously release particles and/or energy so as to come to a more stable arrangement. The most common forms of radioactive decay are alpha decay - beta decay - and gamma decay.
Photon
Crest
Incident ray
Radioactive decay
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. Waves carried by variations in air pressure. The speed of sound waves in air at room temperature and pressure is roughly 343 m/s.
Center of mass
Sound
Faraday's Law
Doppler shift
29. 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
Refraction
Entropy
Angular velocity
Unit vector
30. 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.
Newton's Law of Universal Gravitation
Michelson-Morley experiment
Coefficient of static friction
Equilibrium position
31. The property by which a charge moving in a magnetic field creates an electric field.
Gravitational Potential Energy
Lenz's Law
Electromagnetic induction
Celsius
32. Two materials are in thermal equilibrium if they are at the same temperature.
Thermal equilibrium
Motional emf
Restoring force
Isolated system
33. 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
Rutherford nuclear model
Moment of inertia
Threshold frequency
Alpha decay
34. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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35. In the graphical representation of vectors - the tip of the arrow is the pointy end.
Center of curvature
Tip
Kinetic friction
Convection
36. An object cannot be cooled to absolute zero.
Cycle
Period
Displacement
Third Law of Thermodynamics
37. A property common to both vectors and scalars. In the graphical representation of a vector - the vector's magnitude is equal to the length of the arrow.
Diffraction grating
Kinetic friction
Isotope
Magnitude
38. 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
Inversely proportional
Displacement
Nuclear fission
Mass
39. 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.
Cosine
Planck's constant
Distance
Frictional force
40. The application of kinematics to understand why objects move the way they do. More precisely - dynamics is the study of how forces cause motion.
Distance
Concave mirror
Kepler's Third Law
Dynamics
41. The energy associated with the configuration of bodies attracted to each other by the gravitational force. It is a measure of the amount of work necessary to get the two bodies from a chosen point of reference to their present position. This point of
Electromagnetic induction
Dispersion
Pressure
Gravitational Potential Energy
42. A negatively charged particle that orbits the nucleus of the atom.
Electron
Unit vector
Impulse
Kepler's Second Law
43. The amount of heat necessary for a material undergoing sublimation to make a phase change from gas to solid or solid to gas - without a change in temperature.
Spring
Heat engine
Convex lens
Latent heat of sublimation
44. 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.
Zeroth Law of Thermodynamics
Restoring force
Radioactive decay
Magnification
45. A form of radioactive decay where a heavy element emits an alpha particle and some energy - thus transforming into a lighter - more stable - element.
Harmonic series
Pendulum
Alpha decay
Photon
46. A vector quantity defined as the product of the force acting on a body multiplied by the time interval over which the force is exerted.
Heat transfer
Magnification
Impulse
Chain reaction
47. 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.
Newton's Second Law
Hertz (Hz)
Translational kinetic energy
Isotope
48. A rough approximation of how gases work - that is quite accurate in everyday conditions. According to the kinetic theory - gases are made up of tiny - round molecules that move about in accordance with Newton's Laws - and collide with one another and
Neutrino
Strong nuclear force
Lenz's Law
Kinetic theory of gases
49. 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
Radiation
Mutual Induction
Newton's Law of Universal Gravitation
50. A scale for measuring temperature - defined such that water freezes at 0ºC and boils at 100ºC. 0ºC = 273 K.
Simple harmonic oscillator
Translational kinetic energy
Power
Celsius
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