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Causes of Scientific Expansion of an Object

by Nadia Safitri (2019-12-05)

Causes of Scientific Expansion of an Object

Causes of Scientific Expansion of an Object

The process of expansion is largely due to three things, namely an increase in temperature, high pressure, and too fast a flow rate. When there is an increase in temperature there will be a movement of pasticles that collide with each other. The existence of the collision caused natural expansion of the area or called expansion.

When high pressure enters a device it can also cause expansion. When the pressure approaches the maximum pressure in the design data, the unit will try to adjust itself to the surrounding pressure. This adjustment process is called expansion. This expansion has a maximum limit, meaning that the unit (tool) can no longer adjust to the existing pressure. This can cause an explosion and leakage, Ternak-Web.


Cause of Expansion

A flow rate that is too high can cause an expansion due to friction generated from the flowing fluid. When the flow rate is too high it can cause particles to jumble and move quickly. The process of expansion that occurs due to flow rate has a principle that is not much different from the expansion caused by rising temperatures.


Loss Due to Expansion

Examples of losses arising from expansion are as follows:

Glass or bowl broken or broken glass when filled with hot water suddenly. This happens because the glass does not easily conduct heat so that when filled with hot water, heat does not spread quickly. As a result, the inside of the glass expands faster than the outside.

The railroad tracks are curved during the day because the rails are stretching, while the rails are bound by fastening bolts. This aims to overcome the curvature of the rails, at each rail connection given a gap.

Glass on windows or glass on doors, cracks or breaks on hot days. This is because glass expansion is greater than wood expansion. To prevent the glass from breaking, the glass frame is made wider (loose) than the glass.

Bridges can be curved or broken when the air temperature rises. This can be overcome by making a gap (cavity) on the bridge supporting poles or making a gap at each bridge beam connection.


Car or motorcycle engine parts expand when the engine is running. As a result, the sound of the engine becomes rough and the rotating part becomes a rotating strike. This can be overcome by cooling the engine by entering the coolant.

The power cable is installed rather loose. If installed in a tense position, at night the temperature is lower, the electric cable shrinks and can break.

Also Read Articles That May Be Related: Heat: Definition, Displacement, Capacity, Type, and Formulas with Complete Examples


Examples of Expansion in Life

Installation of steel wheels

Steel tires whose diameter is smaller than the wheel rim, when it will be done installation must be heated first. The goal is that the steel tire expands and makes it easier to install. When returning to normal temperature (space) the results of the installation will be stronger.


Installation of steel wheels


Drying is the process of connecting two metal plates using a special hammer. The two plates that will be joined, then the rivets that have been heated to smoldering are used to connect, after which they are struck with a special hammer to be flat.

When it cools again, the nails shrink and the two plates can be tightly connected. In this day and age, drilling is often done in the construction of bridges, automotive factories, shipbuilding, connecting pipes, cars and airplanes, and in the past the days of drying were often used to make carts.