General Science

What is the best description of newton?

A net force equals rate of change of momentum; for constant mass F = ma
B SI unit of force
C pressure applied to an enclosed fluid is transmitted throughout the fluid
D energy due to motion

Which statement correctly identifies Ohm law?

A electromagnetic radiation strongly associated with thermal radiation
B V = IR under constant physical conditions
C SI unit of force
D light-emitting diode

Which statement correctly identifies simple pendulum?

A large oscillation when driving frequency matches natural frequency
B ideal oscillating bob suspended by a light string
C splitting of a heavy nucleus with energy release
D SI unit of electric charge

What is the best description of parallel circuit?

A circuit with multiple branches
B unit of energy
C spontaneous emission from unstable nuclei
D SI unit of potential difference

Which of the following is most closely associated with refraction?

A SI unit of potential difference
B an object remains at rest or in uniform straight-line motion unless acted on by a net external force
C point through which resultant gravitational force may be considered to act
D change in direction of light when entering another medium

What is the best description of thermal expansion?

A rate of electrical energy transfer
B diverging lens
C increase in dimensions with temperature rise
D sound above about 20 kHz

What is the best description of Doppler effect?

A SI unit of frequency
B motion under gravity alone, neglecting other forces
C apparent frequency change due to relative motion
D SI unit of work and energy

Which of the following is most closely associated with infrared?

A force multiplied by displacement in the direction of force
B electromagnetic radiation strongly associated with thermal radiation
C electrostatic force varies with charges and inverse square of distance in vacuum
D mass per unit volume

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

A force opposing relative motion or its tendency between surfaces
B change in direction of light when entering another medium
C diverging lens
D heat needed to raise unit mass by one degree

Which statement correctly identifies latent heat?

A maximum displacement from mean position
B heat absorbed or released during a phase change without temperature change
C diverging spherical mirror
D heat transfer by bulk movement of a fluid

What is the best description of convex mirror?

A diverging spherical mirror
B light-emitting diode
C electromagnetic radiation strongly associated with thermal radiation
D SI unit of force

Which of the following is most closely associated with radiation?

A SI unit of electric current
B combining light nuclei with energy release
C apparent frequency change due to relative motion
D heat transfer by electromagnetic waves

What is the best description of generator?

A region where magnetic forces can act
B machine converting mechanical energy into electrical energy
C mass multiplied by velocity
D force opposing relative motion or its tendency between surfaces

What is the best description of infrared?

A electromagnetic radiation strongly associated with thermal radiation
B machine converting electrical energy into mechanical energy
C spontaneous emission from unstable nuclei
D SI unit of power

What is the best description of fuse?

A large oscillation when driving frequency matches natural frequency
B SI unit of electric charge
C safety device that melts when excessive current flows
D ideal oscillating bob suspended by a light string

In general science, watt refers to:

A heat transfer through matter without bulk movement
B converging spherical mirror
C mass per unit volume
D SI unit of power

Which statement correctly identifies centre of gravity?

A motion under gravity alone, neglecting other forces
B SI unit of electrical resistance
C SI unit of power
D point through which resultant gravitational force may be considered to act

In general science, heat refers to:

A distance between corresponding points of successive waves
B heat transfer by electromagnetic waves
C converging lens
D energy transferred because of a temperature difference

Which statement correctly identifies resonance?

A sum of kinetic and potential energy
B large oscillation when driving frequency matches natural frequency
C net force equals rate of change of momentum; for constant mass F = ma
D SI unit of electrical resistance

What is the best description of concave lens?

A SI unit of electric current
B diverging lens
C apparent frequency change due to relative motion
D time for one complete oscillation

In general science, sound refers to:

A pressure applied to an enclosed fluid is transmitted throughout the fluid
B converging lens
C mechanical wave requiring a material medium
D heat transfer by electromagnetic waves

In general science, X-rays refers to:

A region where magnetic forces can act
B about 343 m/s in air near room temperature
C SI unit of pressure
D high-energy electromagnetic radiation used in medical imaging

What is the best description of specific heat capacity?

A mass multiplied by velocity
B force opposing relative motion or its tendency between surfaces
C heat needed to raise unit mass by one degree
D heat absorbed or released during a phase change without temperature change

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

A electrostatic force varies with charges and inverse square of distance in vacuum
B energy associated with position or configuration
C force multiplied by displacement in the direction of force
D time for one complete oscillation

What is the best description of resistance?

A circuit with multiple branches
B material with conductivity between conductor and insulator
C sound below about 20 Hz
D opposition to electric current