Bilingual Glossary

Rate of change of velocity with time.

Relative measurement reflected by the number of significant figures.

Objects moving in fixed circular orbits around the Earth.

Such quantity, which can be expressed independently without the reference of any other quantity.

The units in System International, which are seven in number.

Energy obtained from waste organic materials.

The point of body where its whole weight acts.

Acceleration produced by the centripetal force.

The force which keeps an object to move in a circular path.

Motion of a body along a circular path.

Such vectors when added together give the resultant vector.

When two equal and unlike parallel forces act at different points of a body, they constitute a couple.

Mass of unit volume of a substance.

A quantity which is expressed with reference to base quantities.

Units which can be derived from base units.

The shortest distance between two points.

Study of motion of bodies under the action of forces.

Ratio of output and input.

Energy of a compressed or stretched spring.

The property of the solids because of which they restore their original shape when external force ceases to act.

A temporary magnet when electric current flows through a coil wrapped around an iron rod.

Ability of a body to do work.

A state of a body which has no acceleration.

The agent that changes or tends to change the state of a body.

Oil, gas and coal which can be burnt.

The force that tends to prevent the bodies from sliding over each other.

Energy of the hot rocks deep under the surface of the Earth.

The region around an object where its force of gravity acts.

Mutual force of attraction between the objects.

Energy of a body due to its position in the gravitational field.

The form of energy, which is transferred from one place to another because of difference of temperature.

The component of a vector which is along horizontal or x-direction.

Brakes working according to Pascal's law.

A press that works under Pascal's law.

Conversion of kinetic energy of flowing water into electrical energy.

The characteristic of a body due to which it resists against any change in its state.

Total energy of molecules of an object.

The unit of work in System International.

Work done in one hour at a rate of one kilowatt.

Study of motion of bodies without taking into consideration of mass and forces.

Energy of a body due to its motion.

Friction during motion.

The minimum measurement recorded by an instrument.

The unit of distance for celestial bodies equal to 9.46 × 10¹⁵ m.

Forces acting along parallel lines in the same direction.

The maximum value of static friction.

The straight line along which the force acts.

The motion of body along a straight line.

It attracts magnetic materials and stays north-south direction when suspended freely.

A direction indicating device using a magnetic needle.

Space around a magnetic in which force is exerted on another magnet.

The characteristics of a body, which determines the acceleration produced by the application of a force.

The branch of Physics which deals with the study of motion of bodies.

The product of mass and velocity of a moving body.

The condition of a body in which its centre of gravity neither rises nor lowers of its original position after disturbance.

A critical speed of a satellite in order to keep on moving around the Earth at a specific height.

Forces acting along the parallel lines.

The components of a vector which are mutually perpendicular to each other.

Measurable characteristics of objects.

That branch of Science, which explains the properties of matter, energy, space and time.

A state of matter in which most of the atoms are ionized into positive ions and electrons.

Rate of doing work.

Determined by the instrument used equal to its least count.

Symbols added to a unit to write it by power of 10.

Force exerted normally on unit area of an object.

Motion without any consideration of time and direction.

Division of a vector into its components.

Such a vector which shows the combined effect of two or more vectors.

The friction produced during the motion of one body over the other with the help of wheels.

Quantities which can be specified by their magnitudes only.

Logical applications of arguments that explain a certain phenomenon.

The number written as power of ten or prefix in which there is only one non-zero digit before decimal.

In a measurement, the correctly known digits and the first doubtful digit.

The friction between two surfaces sliding against each other.

Energy of the sunlight.

Distance covered by a body in unit time.

The condition of a body in which it comes to its original condition after being disturbed.

The force of friction arising due to applied external force before motion of one body over the other.

Degree of hotness or coldness of a body.

The force acting along a string.

Art of measurement of temperature.

Product of force and its moment arm.

The ratios of the sides of a right-angled triangle.

Equal changes in velocity in equal intervals of time.

Equal distances covered by a body in equal intervals of time.

Equal changes in displacement in equal intervals of time.

Forces acting along parallel lines but in opposite directions.

The condition of a body in which it does not come to its original condition after disturbance.

Quantities which can be specified by magnitude as well as direction.

Rate of change of displacement with time.

The component of a vector which is along vertical or y-direction.

The to and fro motion of a body about a fixed point.

Increase in volume.

The unit of power in System International.

The force with which the Earth pulls a body towards its centre.

Kinetic energy of fast-moving air/wind.

The product of force and the displacement in the direction of force.