If you can't go to the next question. This question will not be graded. Related Topics. More Solid Quizzes. Questions: 5 Attempts: Last updated: Jan 27, Sample Question.
Questions: 10 Attempts: Last updated: Aug 29, What Is A Solid? Questions: 5 Attempts: Last updated: Sep 8, Something that can't hold it's shape and goes everywhere in the air.
Something that can't hold it's shape, but does take up space. Something that can hold it's shape. Some solids can be hammered or squashed into many different shapes without breaking.
They are known as malleable materials. Other solids, such as biscuits or glass, will not bend when hammered or squashed, but will break and split.
These materials are brittle. Shape memory metals can remember their shape. When brought to a certain temperature, these metals can be set to a shape that they never forget. They have many uses, including repairing broken bones. Even if the bones move, the metal always returns to its original shape, bringing the bones back to their correct position. Some solids, such as the metal copper, can be pulled and stretched easily into extremely thin wires. They are known as ductile materials. They have this property because their particles are not held in a rigid structure, but are arranged in rows that can slide past one another.
Copper can be stretched into a thread half the width of a human hair, and is used in many kinds of wiring, including electrical and telephone wiring. Not all solids can undergo these processes, and some undergo a certain process more easily than others.
A plastic straw can be bent easily, but not a metal straw. Paper can be cut readily, but if you try to stretch it, it might get torn instead. When solid materials are bent, their size and shape — their physical appearance — may change but no new material is formed.
When solid materials are pressed, their size and shape may change. Their texture may also change — something rough may be smoothened by pressing. Still no new material is formed — only a physical change happens. When solid materials are hammered, their size, shape, and possibly even their texture may be changed.
Again, only physical changes take place; no new material is formed. Materials that can be hammered and formed into shapes without breaking are said to be malleable. Metals, in particular, are known to be malleable. When solid materials are cut, their size and shape may change but, again, no new material is formed. There is a huge range of tools for cutting. The most common are scissors, which we can use at home to cut paper, for example.
Saws can be used to cut wood. Metal cutters can vary from snips and pliers to huge machines for cutting iron and steel.
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