physics

Trowel

Trowel is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Trowel rather than just read about it. In short: A trowel is a small hand tool used for digging, applying, smoothing, or moving small amounts of viscous or particulate material. Common varieties include the masonry trowel, garden trowel, and float trowel.

Key takeaways

Trowel belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Trowel to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Trowel from memory before moving on to harder problems.

Reference excerpt

A trowel is a small hand tool used for digging, applying, smoothing, or moving small amounts of viscous or particulate material. Common varieties include the masonry trowel, garden trowel, and float trowel. A power trowel is a much larger gasoline or electrically powered walk-behind device with rotating paddles used to finish concrete floors.

Hand trowel

Numerous forms of trowel are used in masonry, concrete, and drywall construction, as well as applying adhesives such as those used in tiling and laying synthetic flooring. Masonry trowels are traditionally made of forged carbon steel, but some newer versions are made of cast stainless steel, which has longer wear and is rust-free. These include:

Bricklayer's trowel has an elongated triangular-shaped flat metal blade, used by masons for leveling, spreading, and shaping cement, plaster, and mortar. Pointing trowel, a scaled-down version of a bricklayer's trowel, for small jobs and repair work. Tuck pointing trowel is long and thin, designed for packing mortar between bricks. Float trowel or finishing trowel is usually rectangular, used to smooth, level, or texture the top layer of hardening concrete. A flooring trowel has one rectangular end and one pointed end, made to fit corners. A grout float is used for applying and working grout into gaps in floor and wall tile. Gauging trowel has a rounded tip, used to mix measured proportions of the different ingredients for quick set plaster. Pool trowel is a flat-bladed tool with rounded ends used to apply coatings to concrete, especially on swimming pool decks. Margin trowel is a small rectangular bladed tool used to move, apply, and smooth small amounts of masonry or adhesive material.

Notched trowel is a rectangular shaped tool with regularly spaced notches along one or more sides used to apply adhesive when adhering tile, or laying synthetic floor surfaces. Other forms of trowel include:

Garden trowel, a hand tool with a pointed, scoop-shaped metal blade and wooden, metal, or plastic handle. It is comparable to a spade or shovel, but is generally much smaller, being designed for use with one hand. It is used for breaking up earth, digging small holes, especially for planting and weeding, mixing in fertilizer or other additives, and transferring plants to pots. Camping trowel, a hand tool used in the outdoors to securely stake and prop up a tent, channel a small stream of water, level a sleeping surface, dig a cathole for no traces of waste and do many more outdoor survival chores. Camping trowels can sometimes be made of lighter weight materials than gardening trowels to make them easier to carry in a backpack or they can be made of heavier materials for chopping kindling or shoveling soil without having to awkwardly reach or bend over. Camping trowels may incorporate a secondary side ruler to measure ground surface depth; however, the ruler might prematurely become defaced from course soil particulates. Camping trowels sometimes have a front tip and side features, such as a pointed tip and a serrated side edge to easily cut through tree roots or frozen soil. These serrated camping trowels may include a cover guard to protect the user from cut wounds as well as save backpacks from puncture holes and tears. They may also fold-up for added protection and easy storage. Few others allow for items such as toilet paper to be stored upon or inside the handle.[2] In archaeology, brick or pointing trowels (usually 4" or 5" steel trowels) are used to scratch the strata in an excavation and allow the colors of the soil to be clear, so that the different strata can be identified, processed and excavated. In the United States, there are several preferred brands of pointing trowels, including the Marshalltown trowel; while in the British Isles the WHS 4" pointing trowel is the traditional tool.

See also Media related to Trowels at Wikimedia Commons The dictionary definition of trowel at Wiktionary Taping knife, a drywall tool with a wide blade for spreading joint compound Putty knife, a generally smaller and variously shaped tool used in a variety of applications Palette knife, a smaller but similarly shaped tool used in oil painting Power trowel Kunai Hori hori

References

Illustrations

Worked examples

Example 1 — a first encounter with Trowel

Start with the simplest possible case. Write down what Trowel claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Trowel before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Trowel ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Trowel

In research: Trowel appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Trowel in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Trowel is common in secondary-school and first-year university syllabi. It links to neighbouring topics Gardening tools, Mechanical hand tools, Plastering, so understanding it makes those chapters shorter.
In everyday life: Look for Trowel outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Trowel in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Trowel means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Trowel out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Trowel in simple terms?

Why does Trowel matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Trowel?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Trowel.