General Science

Which of the following is most closely associated with fuse?

A energy transferred because of a temperature difference
B safety device that melts when excessive current flows
C bouncing back of light from a surface
D acceleration due to gravity, about 9.8 m/s² near Earth

What is the best description of pascal?

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

Which statement correctly identifies half-life?

A SI unit of work and energy
B time required for half a radioactive sample to decay
C material with conductivity between conductor and insulator
D high-energy electromagnetic radiation used in medical imaging

In general science, frequency refers to:

A converging spherical mirror
B number of oscillations per second
C heat transfer through matter without bulk movement
D maximum displacement from mean position

In general science, concave mirror refers to:

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

In general science, potential energy refers to:

A energy associated with position or configuration
B SI unit of frequency
C SI unit of work and energy
D motion under gravity alone, neglecting other forces

What is the best description of Pascal law?

A about 3 × 10^8 m/s in vacuum
B pressure applied to an enclosed fluid is transmitted throughout the fluid
C tendency of an object to resist change in its state of motion
D difference between actual and potential output in an economy

Which of the following is most closely associated with pressure?

A force per unit area
B pressure applied to an enclosed fluid is transmitted throughout the fluid
C rate of doing work
D heat transfer by electromagnetic waves

Which statement correctly identifies Newton’s second law?

A energy transferred because of a temperature difference
B bouncing back of light from a surface
C short-sightedness generally corrected with a concave lens
D net force equals rate of change of momentum; for constant mass F = ma

Which of the following is most closely associated with electrical power?

A every action has an equal and opposite reaction
B energy associated with position or configuration
C rate of electrical energy transfer
D motion under gravity alone, neglecting other forces

Which statement correctly identifies speed of sound?

A about 343 m/s in air near room temperature
B unit of energy
C spontaneous emission from unstable nuclei
D machine converting electrical energy into mechanical energy

In general science, earthing refers to:

A force opposing relative motion or its tendency between surfaces
B heat needed to raise unit mass by one degree
C low-resistance path to ground for fault current
D mass multiplied by velocity

Which statement correctly identifies power?

A semiconductor device that primarily permits current in one direction
B safety device that melts when excessive current flows
C rate of doing work
D high-energy electromagnetic radiation used in medical imaging

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

A an object remains at rest or in uniform straight-line motion unless acted on by a net external force
B rate of doing work
C circuit with a single current path
D buoyant force equals the weight of displaced fluid

Which of the following is most closely associated with motor?

A opposition to electric current
B magnet produced by electric current
C machine converting electrical energy into mechanical energy
D maximum displacement from mean position

Which statement correctly identifies infrasound?

A sound below about 20 Hz
B distance between corresponding points of successive waves
C converging lens
D rate of electrical energy transfer

Which of the following is most closely associated with solar cell?

A device converting light directly into electrical energy
B SI unit of pressure
C electromagnetic radiation shorter in wavelength than visible violet
D light-emitting diode

In general science, speed of light refers to:

A SI unit of electric current
B about 3 × 10^8 m/s in vacuum
C apparent frequency change due to relative motion
D combining light nuclei with energy release

Which statement correctly identifies temperature?

A measure related to average kinetic energy of particles
B heat transfer through matter without bulk movement
C force per unit area
D change in momentum produced by a force acting over time

In general science, wavelength refers to:

A sound below about 20 Hz
B circuit with a single current path
C diverging lens
D distance between corresponding points of successive waves

What is the best description of transformer?

A force multiplied by displacement in the direction of force
B time for one complete oscillation
C electrostatic force varies with charges and inverse square of distance in vacuum
D device changing AC voltage through electromagnetic induction

In general science, amplitude refers to:

A rate of flow of electric charge
B maximum displacement from mean position
C change in direction of light when entering another medium
D long-sightedness generally corrected with a convex lens

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

A acceleration due to gravity, about 9.8 m/s² near Earth
B tendency of an object to resist change in its state of motion
C difference between actual and potential output in an economy
D converging spherical mirror

Which of the following is most closely associated with speed of sound?

A motion under gravity alone, neglecting other forces
B every action has an equal and opposite reaction
C SI unit of electrical resistance
D about 343 m/s in air near room temperature

Which statement correctly identifies infrared?

A SI unit of electric charge
B electromagnetic radiation strongly associated with thermal radiation
C ideal oscillating bob suspended by a light string
D large oscillation when driving frequency matches natural frequency