General Science

In general science, Ohm law refers to:

A V = IR under constant physical conditions
B point through which resultant gravitational force may be considered to act
C SI unit of potential difference
D unit of energy

What is the best description of infrasound?

A heat needed to raise unit mass by one degree
B long-sightedness generally corrected with a convex lens
C sound below about 20 Hz
D change in direction of light when entering another medium

Which statement correctly identifies reflection?

A time required for half a radioactive sample to decay
B material with conductivity between conductor and insulator
C circuit with multiple branches
D bouncing back of light from a surface

In general science, gravitational acceleration refers to:

A an object remains at rest or in uniform straight-line motion unless acted on by a net external force
B point through which resultant gravitational force may be considered to act
C acceleration due to gravity, about 9.8 m/s² near Earth
D SI unit of potential difference

In general science, Newton’s first law refers to:

A an object remains at rest or in uniform straight-line motion unless acted on by a net external force
B sound above about 20 kHz
C increase in dimensions with temperature rise
D diverging lens

Which of the following is most closely associated with convex lens?

A force multiplied by displacement in the direction of force
B heat transfer through matter without bulk movement
C mass per unit volume
D converging lens

What is the best description of kilowatt-hour?

A point through which resultant gravitational force may be considered to act
B an object remains at rest or in uniform straight-line motion unless acted on by a net external force
C SI unit of potential difference
D unit of energy

What is the best description of convection?

A heat absorbed or released during a phase change without temperature change
B heat transfer by bulk movement of a fluid
C converging spherical mirror
D number of oscillations per second

What is the best description of nuclear fusion?

A long-sightedness generally corrected with a convex lens
B circuit with multiple branches
C combining light nuclei with energy release
D repetition of sound caused by reflection

Which of the following is most closely associated with Archimedes principle?

A change in direction of light when entering another medium
B heat needed to raise unit mass by one degree
C long-sightedness generally corrected with a convex lens
D buoyant force equals the weight of displaced fluid

Which statement correctly identifies mechanical energy?

A sum of kinetic and potential energy
B SI unit of electric current
C an object remains at rest or in uniform straight-line motion unless acted on by a net external force
D time for one complete oscillation

What is the best description of newton?

A net force equals rate of change of momentum; for constant mass F = ma
B SI unit of force
C pressure applied to an enclosed fluid is transmitted throughout the fluid
D energy due to motion

Which statement correctly identifies Ohm law?

A electromagnetic radiation strongly associated with thermal radiation
B V = IR under constant physical conditions
C SI unit of force
D light-emitting diode

Which statement correctly identifies simple pendulum?

A large oscillation when driving frequency matches natural frequency
B ideal oscillating bob suspended by a light string
C splitting of a heavy nucleus with energy release
D SI unit of electric charge

What is the best description of parallel circuit?

A circuit with multiple branches
B unit of energy
C spontaneous emission from unstable nuclei
D SI unit of potential difference

Which of the following is most closely associated with refraction?

A SI unit of potential difference
B an object remains at rest or in uniform straight-line motion unless acted on by a net external force
C point through which resultant gravitational force may be considered to act
D change in direction of light when entering another medium

What is the best description of thermal expansion?

A rate of electrical energy transfer
B diverging lens
C increase in dimensions with temperature rise
D sound above about 20 kHz

What is the best description of Doppler effect?

A SI unit of frequency
B motion under gravity alone, neglecting other forces
C apparent frequency change due to relative motion
D SI unit of work and energy

Which of the following is most closely associated with infrared?

A force multiplied by displacement in the direction of force
B electromagnetic radiation strongly associated with thermal radiation
C electrostatic force varies with charges and inverse square of distance in vacuum
D mass per unit volume

Which of the following is most closely associated with concave lens?

A force opposing relative motion or its tendency between surfaces
B change in direction of light when entering another medium
C diverging lens
D heat needed to raise unit mass by one degree

Which statement correctly identifies latent heat?

A maximum displacement from mean position
B heat absorbed or released during a phase change without temperature change
C diverging spherical mirror
D heat transfer by bulk movement of a fluid

What is the best description of convex mirror?

A diverging spherical mirror
B light-emitting diode
C electromagnetic radiation strongly associated with thermal radiation
D SI unit of force

Which of the following is most closely associated with radiation?

A SI unit of electric current
B combining light nuclei with energy release
C apparent frequency change due to relative motion
D heat transfer by electromagnetic waves

What is the best description of generator?

A region where magnetic forces can act
B machine converting mechanical energy into electrical energy
C mass multiplied by velocity
D force opposing relative motion or its tendency between surfaces

What is the best description of infrared?

A electromagnetic radiation strongly associated with thermal radiation
B machine converting electrical energy into mechanical energy
C spontaneous emission from unstable nuclei
D SI unit of power