General Science

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

In general science, Pascal law refers to:

A heat absorbed or released during a phase change without temperature change
B force opposing relative motion or its tendency between surfaces
C pressure applied to an enclosed fluid is transmitted throughout the fluid
D separation of white light into component colours

Which statement correctly identifies kinetic energy?

A spontaneous emission from unstable nuclei
B unit of energy
C machine converting electrical energy into mechanical energy
D energy due to motion

Which statement correctly identifies frequency?

A increase in dimensions with temperature rise
B number of oscillations per second
C energy associated with position or configuration
D measure related to average kinetic energy of particles

Which of the following is most closely associated with hertz?

A SI unit of frequency
B time for one complete oscillation
C SI unit of electric charge
D large oscillation when driving frequency matches natural frequency

What is the best description of watt?

A change in momentum produced by a force acting over time
B SI unit of power
C ideal oscillating bob suspended by a light string
D production of emf by changing magnetic flux

In general science, nuclear fusion refers to:

A electromagnetic radiation strongly associated with thermal radiation
B semiconductor device that primarily permits current in one direction
C combining light nuclei with energy release
D SI unit of force

Which of the following is most closely associated with magnetic field?

A increase in dimensions with temperature rise
B diverging lens
C sound above about 20 kHz
D region where magnetic forces can act

Which statement correctly identifies pressure?

A time for one complete oscillation
B SI unit of electric current
C force per unit area
D electrostatic force varies with charges and inverse square of distance in vacuum

Which of the following is most closely associated with transformer?

A repetition of sound caused by reflection
B device changing AC voltage through electromagnetic induction
C long-sightedness generally corrected with a convex lens
D change in direction of light when entering another medium

In general science, convection refers to:

A magnet produced by electric current
B heat transfer by bulk movement of a fluid
C opposition to electric current
D device converting light directly into electrical energy

In general science, newton refers to:

A increase in dimensions with temperature rise
B sound above about 20 kHz
C diverging lens
D SI unit of force