The General Physics ClipArt gallery offers 239 images showing principles of the science and proof of theorems. Physics is the science of basic concepts such as energy and force.

Centrifugal Force

"Attach a ball, for instance, to a cord; and , fastening the end of the cord at a point, O, give a quick…

Centrifugal Force

"The instant one of the strings is let go, the centrifugal force carries off the stone in a tangent…

Centrifugal Force Demonstration

"AB is a wheel with a broad rim, or felly. A wine glass partly filled with water is placed on the inner…

Inelastic Collision

"Two balls after an inelastic collision." —Quackenbos 1859

Compound Motion

"Compound motion is that which is produced by two or more forces, acting in different directions, on…

Compressed Air Manometer

This instrument consists of a bent tube closed at one end and containing within the space a quantity…

Compressibility of Air

"Let P be a piston, fitted, air-tight, to the cylinder AB. As the piston is driven down, the air, unable…

Compression Experiment

"If the strong tube, or barrel, be smooth, and equal on the inside, and there be fitted to it the solid…

Air Compressor

An air compressor. They come in many forms, most commonly in cylinder form - as shown. This image shows…

Energy Conversion

An example of converting mechanical energy to heat.

Heat Conversion

An illustration showing the interchangeability of heat and mechanical energy.

Counterpoised Barometer

If the barometric tube is suspended from one of the scales of a balance, there will be required to balance…

Deflection of Wood Using Known Weights

"Place a known weight (say 100 g.) in the scale-pan, and to this weight add the weight of the clevis…

Deleuil's Air-pump

"To avoid friction and heat, the piston is not in contact with the cylinder in which it works."

Pneumatic Devices

An air pump, which removes air from an enclosed space. R is the receiver and space that it encloses…

Pipe Diameter

When pipes are bent at ninety degree angles, a rounded bend is best as shown along with a radius as…

Gas Diffusion

Gas diffusion experiment.

Cartesian Diver

A Cartesian diver. At the top of the jar is a rubber bulb filled with air. The figure inside the jar…

Double-barrelled Air-pump

Two racks carry the pistons and work with the pinion. The pinion is turned by a double-handed lever,…

Dynamometer

"The simplest way of measuring a force is to use a dynamometer, of which the spring-balance is a familiar…

Dynamometer

A tool used to measure the power output of things such as turbines and waterwheels.

Engine Efficiency

Comparison of two engine efficiencies. Number 1 is in the reverse cycle.

Velocity of Efflux

Velocity of Efflux. When an apparatus has holes tubes in them, the water that comes out will be the…

Egg Plunged in Fresh and Salt Water

An egg dropped in fresh and salt water to show the properties of density.

Endosmometer

An instrument used to measure the force of the intermingling of two liquids of different densities,…

Equilibrium

"When two forces counteract, or balance each other out, they are said to be in equilibrium." -Comstock…

Bar and Weights in Equilibrium

"A bar with weights attached that is in equilibrium." -Avery 1895

Bar and Weights in Equilibrium

"A bar with weights attached that is in equilibrium." -Avery 1895

A piece in clocks and watches that converts rotational motion into oscillation, as in a pendulum.

Recoiling Escapement

A piece in clocks and watches that converts rotational motion into oscillation, as in a pendulum.

Expansibility of Gases

An experiment using a balloon and air-pump to demonstrate the expansibility of gases.

Cubic Expansion

Cubic expansion as illustrated by Gravesandes' ring. It contains brass ball a, and ring m through which…

Isothermal Expansion

Isothermal expansion is a change in a system with a constant temperature. This occurs when: A. Said…

Linear Expansion

Linear expansion is elongation (of an iron bar) in one direction. A is a metal rod, B is a screw, C…

Experiment of Pascal's Values

The pressure on the bottom of a vessel containing liquid is not affected by the breadth or narrowness…

Pneumatics Experiment

To prove that air has weight and exerts pressure on the earth, this experiment is conducted. A glass…

Falling Bodies in a Vacuum

"In a vacuum, all bodies fall at the same rate." -Comstock 1850

Velocities of Falling Bodies

"When a feather and a cent are dropped from the same height, the cent reaches jthe ground first. this…

Two Objects Falling in a Vacuum

"Remove the air from a high glass tube by means of an instrument called the air-pump... Then... drop…

Making Fire

The primitive processes of making fire.

First Orders of Lever

In the first order of levers, the fulcrum is between the power and the weight.

Continuous Flow

Osmose producing a continuous flow.

Centrifugal Force

"If a body be fastened to a string and whirled, so as to give it a circular motion, there will be a…

Fountain in Vacuo

This apparatus consists of a bell-shaped vessel of glass, the base of which is pierced by a tube fitted…

Hero's Fountain

Hero's fountain is named after its inventor, Hero, who lived in Alexandria 120 B.C. It is dependent…

Gas Osmosis

Osmosis of a gas.

Gravesande's Apparatus

An apparatus for verifying the parallelogram of forces. This method is used in physics for determining…

Gravity Proved by Cannon Balls

"That the cannon ball is capable of attracting as well as being attracted, may be proved by suspending…

Center of Gravity

If w and W are two weights, then their center of gravity c is as shown. The moment of W about C should…

Center of Gravity

Finding the center of gravity of any number of bodies when their weights and distances apart of their…

Center of Gravity

Finding the center of gravity of an irregular plane figure. Divide one of the parallel surfaces into…

Center of Gravity

The center of gravity C of a solid object that is capable of movement is in vertical line drawn through…

Center of Gravity

When a vertical line is drawn to the center of gravity of an object, it is called the line of direction.…

Guillotine

(1.) The guillotine is an instrument employed for the purpose of decapitation. It was officially introduced…

Gyroscope

"Gyroscope. Gyroscopic top, an instrument consisting of a heavy fly-wheel revolving about an axis one…

Foucault's Gyroscope

"Foucault's Gyroscope. GYROSCOPE. An instrument consisting of a fly-wheel, the axis of which can turn…

Gyrostat

"Gyrostat. An instrument for illustrating the dynamics of rotation, composed of a box or case having…

Hargrave Kite

These Hargrave box kites are named so after their inventor, Lawrence Hargrave of Sydney. These kites…