General Science

What is the best description of temperature?

A energy due to motion
B measure related to average kinetic energy of particles
C net force equals rate of change of momentum; for constant mass F = ma
D sum of kinetic and potential energy

In general science, ohm refers to:

A SI unit of electrical resistance
B low-resistance path to ground for fault current
C light-emitting diode
D electromagnetic radiation strongly associated with thermal radiation

Which of the following is most closely associated with kilowatt-hour?

A mechanical wave requiring a material medium
B unit of energy
C separation of white light into component colours
D heat absorbed or released during a phase change without temperature change

Which statement correctly identifies joule?

A buoyant force equals the weight of displaced fluid
B rate of doing work
C SI unit of work and energy
D heat transfer by bulk movement of a fluid

What is the best description of series circuit?

A circuit with a single current path
B semiconductor device that primarily permits current in one direction
C high-energy electromagnetic radiation used in medical imaging
D SI unit of work and energy

In general science, ampere refers to:

A sound below about 20 Hz
B SI unit of electric current
C machine converting electrical energy into mechanical energy
D circuit with a single current path

Which statement correctly identifies series circuit?

A SI unit of electric current
B time for one complete oscillation
C apparent frequency change due to relative motion
D circuit with a single current path

Which of the following is most closely associated with density?

A mass per unit volume
B heat transfer through matter without bulk movement
C force per unit area
D converging spherical mirror

In general science, friction refers to:

A ideal oscillating bob suspended by a light string
B change in momentum produced by a force acting over time
C force opposing relative motion or its tendency between surfaces
D production of emf by changing magnetic flux

In general science, Coulomb law refers to:

A electrostatic force varies with charges and inverse square of distance in vacuum
B heat transfer by electromagnetic waves
C converging lens
D distance between corresponding points of successive waves

In general science, semiconductor refers to:

A material with conductivity between conductor and insulator
B distance between corresponding points of successive waves
C converging lens
D V = IR under constant physical conditions

In general science, dispersion refers to:

A sum of kinetic and potential energy
B SI unit of electrical resistance
C SI unit of power
D separation of white light into component colours

What is the best description of electromagnetic induction?

A energy associated with position or configuration
B sum of kinetic and potential energy
C production of emf by changing magnetic flux
D every action has an equal and opposite reaction

What is the best description of impulse?

A separation of white light into component colours
B rate of flow of electric charge
C change in momentum produced by a force acting over time
D mechanical wave requiring a material medium

What is the best description of Archimedes principle?

A production of emf by changing magnetic flux
B buoyant force equals the weight of displaced fluid
C ideal oscillating bob suspended by a light string
D SI unit of electric charge

Which of the following is most closely associated with free fall?

A mass per unit volume
B motion under gravity alone, neglecting other forces
C heat transfer through matter without bulk movement
D converging spherical mirror

What is the best description of ultraviolet?

A splitting of a heavy nucleus with energy release
B electromagnetic radiation shorter in wavelength than visible violet
C SI unit of electric current
D apparent frequency change due to relative motion

Which statement correctly identifies Pascal law?

A pressure applied to an enclosed fluid is transmitted throughout the fluid
B buoyant force equals the weight of displaced fluid
C rate of doing work
D an object remains at rest or in uniform straight-line motion unless acted on by a net external force

Which statement correctly identifies thermal expansion?

A increase in dimensions with temperature rise
B work done per unit charge
C light-emitting diode
D low-resistance path to ground for fault current

What is the best description of potential energy?

A circuit with multiple branches
B material with conductivity between conductor and insulator
C time required for half a radioactive sample to decay
D energy associated with position or configuration

Which statement correctly identifies electromagnetic induction?

A heat transfer through matter without bulk movement
B production of emf by changing magnetic flux
C mass per unit volume
D force multiplied by displacement in the direction of force

What is the best description of coulomb?

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

Which of the following is most closely associated with amplitude?

A rate of electrical energy transfer
B machine converting mechanical energy into electrical energy
C maximum displacement from mean position
D sound above about 20 kHz

Which statement correctly identifies potential difference?

A spontaneous emission from unstable nuclei
B circuit with a single current path
C work done per unit charge
D machine converting electrical energy into mechanical energy

What is the best description of echo?

A repetition of sound caused by reflection
B diverging lens
C sound above about 20 kHz
D increase in dimensions with temperature rise