General Science

Which statement correctly identifies Archimedes principle?

A every action has an equal and opposite reaction
B buoyant force equals the weight of displaced fluid
C motion under gravity alone, neglecting other forces
D energy associated with position or configuration

Which of the following is most closely associated with kinetic energy?

A net force equals rate of change of momentum; for constant mass F = ma
B SI unit of electrical resistance
C sum of kinetic and potential energy
D energy due to motion

Which statement correctly identifies motor?

A heat transfer through matter without bulk movement
B mass per unit volume
C converging spherical mirror
D machine converting electrical energy into mechanical energy

Which statement correctly identifies refraction?

A apparent frequency change due to relative motion
B machine converting mechanical energy into electrical energy
C combining light nuclei with energy release
D change in direction of light when entering another medium

Which of the following is most closely associated with Newton’s second law?

A material with conductivity between conductor and insulator
B repetition of sound caused by reflection
C net force equals rate of change of momentum; for constant mass F = ma
D circuit with multiple branches

Which statement correctly identifies momentum?

A mass multiplied by velocity
B long-sightedness generally corrected with a convex lens
C circuit with multiple branches
D repetition of sound caused by reflection

In general science, work refers to:

A time required for half a radioactive sample to decay
B force multiplied by displacement in the direction of force
C material with conductivity between conductor and insulator
D SI unit of power

What is the best description of speed of sound?

A light-emitting diode
B about 343 m/s in air near room temperature
C work done per unit charge
D low-resistance path to ground for fault current

Which statement correctly identifies dispersion?

A device converting light directly into electrical energy
B electromagnetic radiation shorter in wavelength than visible violet
C separation of white light into component colours
D SI unit of pressure

Which statement correctly identifies radioactivity?

A electromagnetic radiation shorter in wavelength than visible violet
B light-emitting diode
C spontaneous emission from unstable nuclei
D low-resistance path to ground for fault current

In general science, hypermetropia refers to:

A energy transferred because of a temperature difference
B long-sightedness generally corrected with a convex lens
C acceleration due to gravity, about 9.8 m/s² near Earth
D bouncing back of light from a surface

Which statement correctly identifies wavelength?

A heat absorbed or released during a phase change without temperature change
B mechanical wave requiring a material medium
C separation of white light into component colours
D distance between corresponding points of successive waves

Which of the following is most closely associated with Coulomb law?

A safety device that melts when excessive current flows
B rate of flow of electric charge
C electrostatic force varies with charges and inverse square of distance in vacuum
D mechanical wave requiring a material medium

In general science, echo refers to:

A time required for half a radioactive sample to decay
B circuit with multiple branches
C repetition of sound caused by reflection
D material with conductivity between conductor and insulator

In general science, joule refers to:

A SI unit of work and energy
B long-sightedness generally corrected with a convex lens
C heat needed to raise unit mass by one degree
D change in direction of light when entering another medium

Which of the following is most closely associated with nuclear fission?

A SI unit of work and energy
B high-energy electromagnetic radiation used in medical imaging
C splitting of a heavy nucleus with energy release
D SI unit of frequency

In general science, mechanical energy refers to:

A region where magnetic forces can act
B mass multiplied by velocity
C force opposing relative motion or its tendency between surfaces
D sum of kinetic and potential energy

Which of the following is most closely associated with joule?

A V = IR under constant physical conditions
B distance between corresponding points of successive waves
C SI unit of work and energy
D converging lens

What is the best description of Newton’s second law?

A mass per unit volume
B net force equals rate of change of momentum; for constant mass F = ma
C heat transfer through matter without bulk movement
D force multiplied by displacement in the direction of force

In general science, electromagnetic induction refers to:

A production of emf by changing magnetic flux
B short-sightedness generally corrected with a concave lens
C bouncing back of light from a surface
D energy transferred because of a temperature difference

Which of the following is most closely associated with volt?

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

In general science, kilowatt-hour refers to:

A unit of energy
B pressure applied to an enclosed fluid is transmitted throughout the fluid
C heat transfer by electromagnetic waves
D energy due to motion

Which statement correctly identifies concave mirror?

A SI unit of work and energy
B SI unit of frequency
C converging spherical mirror
D high-energy electromagnetic radiation used in medical imaging

Which of the following is most closely associated with parallel circuit?

A circuit with multiple branches
B change in momentum produced by a force acting over time
C force per unit area
D heat absorbed or released during a phase change without temperature change

What is the best description of mechanical energy?

A high-energy electromagnetic radiation used in medical imaging
B SI unit of work and energy
C SI unit of frequency
D sum of kinetic and potential energy