General Science

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

In general science, Ohm law refers to:

A V = IR under constant physical conditions
B point through which resultant gravitational force may be considered to act
C SI unit of potential difference
D unit of energy

What is the best description of infrasound?

A heat needed to raise unit mass by one degree
B long-sightedness generally corrected with a convex lens
C sound below about 20 Hz
D change in direction of light when entering another medium

Which statement correctly identifies reflection?

A time required for half a radioactive sample to decay
B material with conductivity between conductor and insulator
C circuit with multiple branches
D bouncing back of light from a surface

In general science, gravitational acceleration refers to:

A an object remains at rest or in uniform straight-line motion unless acted on by a net external force
B point through which resultant gravitational force may be considered to act
C acceleration due to gravity, about 9.8 m/s² near Earth
D SI unit of potential difference

In general science, Newton’s first law refers to:

A an object remains at rest or in uniform straight-line motion unless acted on by a net external force
B sound above about 20 kHz
C increase in dimensions with temperature rise
D diverging lens

Which of the following is most closely associated with convex lens?

A force multiplied by displacement in the direction of force
B heat transfer through matter without bulk movement
C mass per unit volume
D converging lens

What is the best description of kilowatt-hour?

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 SI unit of potential difference
D unit of energy

What is the best description of convection?

A heat absorbed or released during a phase change without temperature change
B heat transfer by bulk movement of a fluid
C converging spherical mirror
D number of oscillations per second

What is the best description of nuclear fusion?

A long-sightedness generally corrected with a convex lens
B circuit with multiple branches
C combining light nuclei with energy release
D repetition of sound caused by reflection

Which of the following is most closely associated with Archimedes principle?

A change in direction of light when entering another medium
B heat needed to raise unit mass by one degree
C long-sightedness generally corrected with a convex lens
D buoyant force equals the weight of displaced fluid

Which statement correctly identifies mechanical energy?

A sum of kinetic and potential energy
B SI unit of electric current
C an object remains at rest or in uniform straight-line motion unless acted on by a net external force
D time for one complete oscillation