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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. The unit for measuring pressure. One Pascal is equal to one Newton per meter squared - 1 Pa = 1 N/m2.
Pascals
Rigid body
Celsius
Loudness
2. 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
Dynamics
Internal energy
Potential energy
Inertia
3. The number - N - of neutrons in an atomic nucleus.
Neutron number
Hypotenuse
Cycle
Conservation of momentum
4. 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
Significant digits
Kinetic theory of gases
Lenz's Law
Neutrino
5. A mirror that is curved such that its center is closer to the viewer than the edges - such as a doorknob. Convex mirrors reflect light away from a focal point.
Minima
Convex mirror
Electric generator
Energy
6. The amplification of one wave by another - identical wave of the same sign. Two constructively interfering waves are said to be "in phase."
Constructive interference
Efficiency
Isolated system
Coherent light
7. An object cannot be cooled to absolute zero.
Angular momentum
Third Law of Thermodynamics
Newton's First Law
Electron
8. 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 - .
System
Fundamental
Quark
Gamma ray
9. 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.
Concave lens
Center of mass
Radian
Transformer
10. 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
Antinode
Gold foil experiment
Sound
11. Kinematics is the study and description of the motion of objects.
Refraction
Pressure
Kinematics
Distance
12. 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.
Absolute zero
Weber
Cosine
Newton
13. 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.
Latent heat of vaporization
Temperature
Electron
Radioactive decay
14. The temperature at which a material will change phase from liquid to gas or gas to liquid.
Angular momentum
Reflected ray
Boiling point
Mechanical energy
15. The force transmitted along a rope or cable.
Electromagnetic wave
Reflect
Tension force
Sublimation
16. The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.
Centripetal force
Isolated system
Kepler's Third Law
Translational motion
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.
Radioactivity
Mechanical energy
Coefficient of static friction
Newton
18. The amount of heat necessary to transform a liquid at a given temperature into a gas of the same temperature - or the amount of heat needed to be taken away from a gas of a given temperature to transform it into a liquid of the same temperature.
Ideal gas law
Alpha particle
Sine
Latent heat of vaporization
19. 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.
Decibel
Magnitude
Hooke's Law
Magnification
20. The time it takes a system to pass through one cycle of its repetitive motion. The period - T - is the inverse of the motion's frequency - f = 1/T.
Period
Inelastic collision
Calorie
Conservation of momentum
21. The effect of force on rotational motion.
Center of curvature
Torque
Activity
Quark
22. The amount of heat necessary to transform a solid at a given temperature into a liquid of the same temperature - or the amount of heat needed to be removed from a liquid of a given temperature to transform it into a solid of the same temperature.
Frictional force
Constant of proportionality
Latent heat of fusion
Pressure
23. 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
Pascals
Moment of inertia
Right-hand rule
Nuclear fission
24. A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Focal point
Induced current
Pressure
Total internal reflection
25. For a gas held at a constant temperature - pressure and volume are inversely proportional.
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26. Heat transfer via the mass movement of molecules.
Motional emf
Convection
Constructive interference
Frictional force
27. The bending of light as it passes from one medium to another. Light refracts toward the normal when going from a less dense medium into a denser medium and away from the normal when going from a denser medium into a less dense medium.
Michelson-Morley experiment
Efficiency
Phase change
Refraction
28. The force that causes simple harmonic motion. The restoring force is always directed toward an object's equilibrium position.
Newton's Second Law
Restoring force
Michelson-Morley experiment
Inclined plane
29. The number of hydrogen atoms in one gram of hydrogen - equal to . When counting the number of molecules in a gas - it is often convenient to count them in moles.
Spring constant
Mole
Angle of incidence
Vector
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.
Half
Sine
Reflected ray
Static friction
31. A constant - J · s - which is useful in quantum physics. A second constant associated with Planck's constant is .
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32. 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
Incident ray
Neutron
Kinetic theory of gases
Gravitational Potential Energy
33. 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.
Nuclear fusion
Beats
Simple harmonic oscillator
Collision
34. The energy of the molecules that make up an object. It is related to heat - which is the amount of energy transferred from one object to another object that is a different temperature.
Nuclear fission
Torque
Thermal energy
Nuclear fusion
35. A small particle-like bundle of electromagnetic radiation.
Alpha particle
Magnification
Photon
Direction
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
Mole
Wavelength
Photoelectron
Phase
37. The time - T - required for a rigid body to complete one revolution.
Coefficient of volume expansion
Radiation
Tip
Angular period
38. A measurement of a body's inertia - or resistance to being accelerated.
Latent heat of transformation
Kelvin
Mass
Normal
39. A collision in which both kinetic energy and momentum are conserved.
Destructive interference
Elastic collision
Force
Universal gas constant
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.
Proton
Alpha particle
Loudness
Momentum
41. A pulley is a simple machine that consists of a rope that slides around a disk or block.
Pulley
Medium
Longitudinal waves
Pendulum
42. The property by which a charge moving in a magnetic field creates an electric field.
Doppler shift
Reflected ray
Gravitational Potential Energy
Electromagnetic induction
43. 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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44. 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.
Inversely proportional
System
Uncertainty principle
Angular acceleration
45. When a light ray strikes a surface - the angle of incidence is the angle between the incident ray and the normal.
Angle of incidence
Half
Coefficient of kinetic friction
Kinematics
46. A particle - identical to an electron. Beta particles are ejected from an atom in the process of beta decay.
Cycle
Acceleration
Inelastic collision
Beta particle
47. A unit of force: 1 N is equivalent to a 1 kg · m/s2.
Atom
Snell's Law
Beta decay
Newton
48. Given the trajectory of an object or system - the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force - the center of mass is the poin
Incident ray
Pendulum
Center of mass
Third Law of Thermodynamics
49. A scale for measuring temperature - defined such that 0K is the lowest theoretical temperature a material can have. 273K = 0ºC.
Isolated system
Wave speed
Kelvin
Spectroscope
50. Relates the angle of incidence to the angle of refraction: .
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