General Science

Which statement correctly identifies specific heat capacity?

A pressure applied to an enclosed fluid is transmitted throughout the fluid
B increase in dimensions with temperature rise
C diverging lens
D heat needed to raise unit mass by one degree

Which of the following is most closely associated with momentum?

A high-energy electromagnetic radiation used in medical imaging
B semiconductor device that primarily permits current in one direction
C mass multiplied by velocity
D SI unit of work and energy

Which of the following is most closely associated with thermal expansion?

A about 343 m/s in air near room temperature
B electromagnetic radiation shorter in wavelength than visible violet
C increase in dimensions with temperature rise
D SI unit of pressure

Which of the following is most closely associated with infrasound?

A spontaneous emission from unstable nuclei
B sound below about 20 Hz
C unit of energy
D machine converting electrical energy into mechanical energy

In general science, speed of sound refers to:

A ideal oscillating bob suspended by a light string
B electromagnetic radiation shorter in wavelength than visible violet
C SI unit of pressure
D about 343 m/s in air near room temperature

What is the best description of centre of gravity?

A electromagnetic radiation shorter in wavelength than visible violet
B device converting light directly into electrical energy
C SI unit of pressure
D point through which resultant gravitational force may be considered to act

Which statement correctly identifies parallel circuit?

A SI unit of pressure
B region where magnetic forces can act
C about 343 m/s in air near room temperature
D circuit with multiple branches

Which of the following is most closely associated with frequency?

A number of oscillations per second
B circuit with multiple branches
C short-sightedness generally corrected with a concave lens
D repetition of sound caused by reflection

What is the best description of electric current?

A diverging spherical mirror
B V = IR under constant physical conditions
C maximum displacement from mean position
D rate of flow of electric charge

Which statement correctly identifies convection?

A short-sightedness generally corrected with a concave lens
B sound below about 20 Hz
C circuit with a single current path
D heat transfer by bulk movement of a fluid

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