General Science

The term is correctly defined as: myopia?

A measure related to average kinetic energy of particles
B increase in dimensions with temperature rise
C short-sightedness generally corrected with a concave lens
D diverging lens

Which statement is most accurate for ampere?

A electromagnetic radiation shorter in wavelength than visible violet
B device converting light directly into electrical energy
C SI unit of electric current
D magnet produced by electric current

Identify the correct description of semiconductor?

A material with conductivity between conductor and insulator
B heat transfer by bulk movement of a fluid
C buoyant force equals the weight of displaced fluid
D rate of doing work

Which option best matches the scientific meaning of this term: Coulomb law?

A electrostatic force varies with charges and inverse square of distance in vacuum
B an object remains at rest or in uniform straight-line motion unless acted on by a net external force
C rate of doing work
D buoyant force equals the weight of displaced fluid

Select the scientifically correct interpretation of temperatur?

A measure related to average kinetic energy of particles
B bouncing back of light from a surface
C short-sightedness generally corrected with a concave lens
D energy transferred because of a temperature difference

The term is correctly defined as: infrasoun?

A work done per unit charge
B light-emitting diode
C sound below about 20 Hz
D low-resistance path to ground for fault current

Which statement is most accurate for resonance?

A electromagnetic radiation strongly associated with thermal radiation
B SI unit of pressure
C about 343 m/s in air near room temperature
D large oscillation when driving frequency matches natural frequency

Identify the correct description of solar cell?

A device converting light directly into electrical energy
B heat transfer by electromagnetic waves
C converging lens
D distance between corresponding points of successive waves

Which option best matches the scientific meaning of this term: ultrasound?

A bouncing back of light from a surface
B short-sightedness generally corrected with a concave lens
C sound above about 20 kHz
D repetition of sound caused by reflection

Select the scientifically correct interpretation of Newton’s third law?

A combining light nuclei with energy release
B machine converting mechanical energy into electrical energy
C every action has an equal and opposite reaction
D rate of electrical energy transfer

The term is correctly defined as: Newton’s third la?

A rate of flow of electric charge
B safety device that melts when excessive current flows
C every action has an equal and opposite reaction
D mechanical wave requiring a material medium

Which statement is most accurate for convex lens?

A time required for half a radioactive sample to decay
B SI unit of power
C converging lens
D SI unit of electrical resistance

Identify the correct description of sound?

A force opposing relative motion or its tendency between surfaces
B mass multiplied by velocity
C heat needed to raise unit mass by one degree
D mechanical wave requiring a material medium

Which option best matches the scientific meaning of this term: latent heat?

A energy associated with position or configuration
B heat absorbed or released during a phase change without temperature change
C measure related to average kinetic energy of particles
D bouncing back of light from a surface

Select the scientifically correct interpretation of newton?

A separation of white light into component colours
B heat absorbed or released during a phase change without temperature change
C force per unit area
D SI unit of force

The term is correctly defined as: Newton’s first law?

A work done per unit charge
B low-resistance path to ground for fault current
C number of oscillations per second
D an object remains at rest or in uniform straight-line motion unless acted on by a net external force

Which statement is most accurate for earthing?

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 rate of doing work
D low-resistance path to ground for fault current

Identify the correct description of transforme?

A device changing AC voltage through electromagnetic induction
B heat transfer by bulk movement of a fluid
C buoyant force equals the weight of displaced fluid
D diverging spherical mirror

Select the scientifically correct interpretation of friction?

A force opposing relative motion or its tendency between surfaces
B SI unit of electrical resistance
C sum of kinetic and potential energy
D SI unit of power

The term is correctly defined as: series circui?

A tendency of an object to resist change in its state of motion
B circuit with a single current path
C difference between actual and potential output in an economy
D about 3 × 10^8 m/s in vacuum

Which statement is most accurate for vol?

A V = IR under constant physical conditions
B device changing AC voltage through electromagnetic induction
C splitting of a heavy nucleus with energy release
D SI unit of potential difference

Identify the correct description of wavelength?

A magnet produced by electric current
B distance between corresponding points of successive waves
C device converting light directly into electrical energy
D opposition to electric current

Which option best matches the scientific meaning of this term: earthing?

A SI unit of force
B difference between actual and potential output in an economy
C low-resistance path to ground for fault current
D about 3 × 10^8 m/s in vacuum

Select the scientifically correct interpretation of pascal?

A SI unit of pressure
B circuit with multiple branches
C material with conductivity between conductor and insulator
D repetition of sound caused by reflection

Which statement correctly identifies monomer?

A separation based mainly on differences in boiling points
B large molecule made of repeating structural units
C small molecule that can form a polymer
D iron-based alloy containing carbon