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Test your basic knowledge |
SAT Subject Test: hysics
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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 spectrum containing all the different kinds of electromagnetic waves - ranging in wavelength and frequency.
Electromagnetic spectrum
Center of mass
Tip
Reflection
2. The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction - fission or fusion is rapidly transferred to a large number of atoms - releasing tremendous amounts of ene
Inelastic collision
Chain reaction
Pulley
Tip
3. Two quantities are inversely proportional if an increase in one results in a proportional decrease in the other - and a decrease in one results in a proportional increase in the other. In a formula defining a certain quantity - those quantities to wh
Inversely proportional
Scalar
Electromagnetic wave
Mole
4. The points of maximum negative displacement along a wave. They are the opposite of wave crests.
Trough
Inversely proportional
Real image
Concave mirror
5. 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.
Neutron
Mole
Magnitude
Activity
6. A machine that operates by taking heat from a hot place - doing some work with that heat - and then exhausting the rest of the heat into a cool place. The internal combustion engine of a car is an example of a heat engine.
Heat engine
Conduction
Standing wave
Convection
7. 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
Weber
Spring
Orbit
8. The mass number - A - is the sum of the number of protons and neutrons in a nucleus. It is very close to the weight of that nucleus in atomic mass units.
Beta decay
Mass number
Law of reflection
Boiling point
9. The path of each planet around the sun is an ellipse with the sun at one focus.
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10. Two materials are in thermal equilibrium if they are at the same temperature.
Translational kinetic energy
Kinetic theory of gases
Rarefaction
Thermal equilibrium
11. The force of gravity - F - between two particles of mass and - separated by a distance r - has a magnitude of - where G is the gravitational constant. The force is directed along the line joining the two particles.
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12. 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.
Isotope
Trough
Optics
Thermal equilibrium
13. The net change - - in a point's angular position - . It is a scalar quantity.
Angular displacement
Angle of refraction
Amplitude
Critical angle
14. 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
Strong nuclear force
Doppler shift
Equilibrium position
15. Defined as the rate at which work is done - or the rate at which energy is transformed. P is measured in joules per second (J/s) - or watts (W).
Momentum
Strong nuclear force
Power
Planck's constant
16. 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 - .
Coefficient of linear expansion
Second Law of Thermodynamics
Fundamental
Dot product
17. A law - || = - which states that the induced emf is the change in magnetic flux in a certain time.
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18. The number - N - of neutrons in an atomic nucleus.
Charles's Law
Neutron number
Weight
Index of refraction
19. A means of defining the direction of the cross product vector. To define the direction of the vector - position your right hand so that your fingers point in the direction of A - and then curl them around so that they point in the direction of B. Th
Right-hand rule
Normal
Inclined plane
Principal axis
20. The two shorter sides of a right triangle that meet at the right angle.
Distance
Legs
Pendulum
Angular velocity
21. The principle by which the displacements from different waves traveling in the same medium add up. Superposition is the basis for interference.
Center of mass
Newton's First Law
Angular frequency
Superposition
22. The emf created by the motion of a charge through a magnetic field.
Motional emf
Rotational motion
Inertia
Polarization
23. In the Bohr model of the atom - the state in which an electron has the least energy and orbits closest to the nucleus.
Electromagnetic induction
Ground state
Acceleration
Angle of refraction
24. A small particle-like bundle of electromagnetic radiation.
Michelson-Morley experiment
Virtual image
Photon
Nuclear fusion
25. 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.
Radioactive decay
Angle of incidence
Momentum
Newton
26. A vector quantity defined as the rate of change of the velocity vector with time.
Acceleration
Rarefaction
Chain reaction
Standing wave
27. In an interference or diffraction pattern - the places where there is the least light.
Minima
Total internal reflection
Angle of refraction
Kelvin
28. Light such that all of the associated waves have the same wavelength and are in phase.
Wavelength
Momentum
Hypotenuse
Coherent light
29. Heat transfer by molecular collisions.
Refraction
Vector
Fundamental
Conduction
30. The process by which a gas turns directly into a solid because it cannot exist as a liquid at certain pressures.
Oscillation
Beats
Deposition
Principal axis
31. The energy of a particle rotating around an axis.
Superposition
Maxima
Rotational kinetic energy
Normal
32. 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
Nucleus
Heat transfer
Reflected ray
Moment of inertia
33. 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
Incident ray
Medium
Faraday's Law
34. 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
Distance
Force
Translational motion
Margin of error
35. 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
Activity
Inelastic collision
Dot product
Collision
36. A measure of the average kinetic energy of the molecules in a system. Temperature is related to heat by the specific heat of a given substance.
Electron
Temperature
Induced current
Law of conservation of energy
37. The current induced in a circuit by a change in magnetic flux.
Impulse
Nuclear fusion
Threshold frequency
Induced current
38. The principle stating that for any isolated system - linear momentum is constant with time.
Magnetic flux
Dynamics
Conservation of momentum
Convex mirror
39. The property by which a changing current in one coil of wire induces an emf in another.
Kelvin
Uncertainty principle
Crest
Mutual Induction
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.
Dynamics
Kinematics
Weightlessness
Alpha decay
41. 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.
Ideal gas law
Angular acceleration
Radioactivity
Angular displacement
42. The name of an electron released from the surface of a metal due to the photoelectric effect.
Thermal equilibrium
Amplitude
Photoelectron
Charles's Law
43. For a heat engine - the ratio of work done by the engine to heat intake. Efficiency is never 100%.
Decibel
Real image
Efficiency
Coefficient of kinetic friction
44. 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.
Zeroth Law of Thermodynamics
Focal length
Translational kinetic energy
Kinetic theory of gases
45. For a gas held at constant pressure - temperature and volume are directly proportional.
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46. 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 .
Law of reflection
Second Law of Thermodynamics
Dot product
Equilibrium
47. An area of high air pressure that acts as the wave crest for sound waves. The spacing between successive compressions is the wavelength of sound - and the number of successive areas of compression that arrive at the ear per second is the frequency -
Compression
Legs
Speed
Reflected ray
48. The effect of force on rotational motion.
Coherent light
Internal energy
Nuclear fusion
Torque
49. A nuclear reaction that takes place only at very high temperatures. Two light atoms - often hydrogen - fuse together to form a larger single atom - releasing a vast amount of energy in the process.
Mechanical energy
Nuclear fusion
Focal point
First Law of Thermodynamics
50. 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
Refracted ray
Principal axis
Rarefaction
Potential energy
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