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Engineering: explore STEM content (page 12 of 27) · openstem

All fields Software Mathematics Physics Chemistry Biology Engineering Astronomy Environmental Other Engineering Engineering groups

Explore STEM Content

Search the community's STEM library — free to study, yours to make your own.

Engineering

Circuits, mechanics, materials and design on openstem — flashcards, notes, quizzes, sketches and flowcharts shared by the community. Study free, or clone anything into your library.

Content Groups1

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Flowchart10 objects

Engineering

Engineering · L1 · From Idea to Improved Prototype

@openstem

Engineering · L1 · From Idea to Improved Prototype

Quiz6 questions

What does viscosity measure in a fluid?

AA fluid's internal resistance to flowBA fluid's densityCA fluid's temperatureDA fluid's color

Engineering

Engineering · L3 · Viscosity & Flow Regimes Quiz

@openstem

Engineering · L3 · Viscosity & Flow Regimes Quiz

Flashcards5 cards

What does an engineer do?1 / 5

An engineer solves problems. They build and fix things to make life better.

Engineering

Engineering · L1 · What Do Engineers Do?

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Engineering · L1 · What Do Engineers Do?

Flowchart13 objects

Engineering

Engineering · L3 · Matching a Pump's Curve to a Job

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Engineering · L3 · Matching a Pump's Curve to a Job

Note~276 words · 1 min

Shear vs normal stress Same units as any stress, pascals, though fastener work is usually quoted in MPa. Single vs double shear A shear plane is where two connected plates try to slide past each other across the fastener. Worked: a 10 mm bo

Engineering

Engineering · L3 · Shear Stress

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Engineering · L3 · Shear Stress

Flowchart9 objects

Engineering

Engineering · L3 · Heat Exchangers · flowchart

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Engineering · L3 · Heat Exchangers · flowchart

Collection5 items

01Engineering · L2 · Simple Robots & Motors

02Engineering · L2 · Robot Programs & Simple Rules

03Engineering · L2 · What Makes a Robot a Robot

+2 more

Engineering

Engineering · L2 · Simple Robots & Motors

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Engineering · L2 · Simple Robots & Motors

Flowchart5 objects

Engineering

Engineering · L2 · Standards & Codes Quiz · flowchart

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Engineering · L2 · Standards & Codes Quiz · flowchart

Flowchart11 objects

Engineering

Engineering · L2 · Recycling & Material Life Cycles · flowchart

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Engineering · L2 · Recycling & Material Life Cycles · flowchart

Flashcards10 cards

US household power is 120 V RMS. What is the peak voltage?1 / 10

V_peak = V_rms × √2 = 120 × 1.414 ≈ 169.7 V.

Engineering

Engineering · L3 · AC Circuits — Numeric Problems

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Engineering · L3 · AC Circuits — Numeric Problems

Quiz7 questions

An LTI system's output for any input x(t) can be found by:

AMultiplying x(t) directly by the impulse response h(t)BConvolving x(t) with the impulse response h(t)CAdding x(t) to h(t)DDifferentiating x(t) with respect to h(t)

Engineering

Engineering · L4 · Signals & Systems — 7 Q

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Engineering · L4 · Signals & Systems — 7 Q

Collection5 items

01Engineering · L3 · Heat Exchangers

02Engineering · L3 · Heat Exchangers

03Engineering · L3 · Heat Exchangers

+2 more

Engineering

Engineering · L3 · Heat Exchangers

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Engineering · L3 · Heat Exchangers

Plot1 plot · 2 params

Engineering

Instantaneous Voltage vs. Time: v(t) = Vpk·sin(ωt)

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Instantaneous Voltage vs. Time: v(t) = Vpk·sin(ωt)

Flashcards10 cards

What is a material life cycle?1 / 10

The full path a material takes: it starts as a raw resource, gets manufactured into a product, is used, and finally reaches its end of life — recycled, reused, or thrown away.

Engineering

Engineering · L2 · Recycling & Material Life Cycles

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Engineering · L2 · Recycling & Material Life Cycles

Collection5 items

01Engineering · L2 · Prototyping Methods: The Basics

02Engineering · L2 · Choosing the Right Prototyping Method

03Engineering · L2 · Comparing Prototyping Methods

+2 more

Engineering

Engineering · L2 · Comparing Prototyping Methods

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Engineering · L2 · Comparing Prototyping Methods

Flowchart10 objects

Engineering

Engineering · L2 · A Thermostat's Feedback Loop

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Engineering · L2 · A Thermostat's Feedback Loop

Flowchart6 objects

Engineering

Engineering · L2 · Cantilevers · flowchart

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Engineering · L2 · Cantilevers · flowchart

Flowchart13 objects

Engineering

Engineering · L1 · What Are Materials? · flowchart

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Engineering · L1 · What Are Materials? · flowchart

Quiz6 questions

Which terminal of an NPN transistor is the control input — the one where a small current turns the transistor on?

ABaseBCollectorCEmitterDCase

Engineering

Engineering · L3 · Transistors as Switches

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Engineering · L3 · Transistors as Switches

Flowchart8 objects

Engineering

Engineering · L3 · Column Buckling · flowchart

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Engineering · L3 · Column Buckling · flowchart

Note~263 words · 1 min

Three ways to shape a material Everything you own started as raw material: plastic pellets, a block of metal, a sheet of wood. The process that shaped it depends on the material and how many copies were needed. Moulding and casting Injectio

Engineering

Engineering · L2 · How Things Are Made: Molding, Casting, and Cutting

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Engineering · L2 · How Things Are Made: Molding, Casting, and Cutting

Flashcards9 cards

Why does hot air rise inside a room?1 / 9

Heating makes air expand, which makes it less dense than the cooler air around it. Less dense air floats upward, the same way a less dense object floats in water.

Engineering

Engineering · L2 · How Heat Travels

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Engineering · L2 · How Heat Travels

Flashcards7 cards

What does a Warren truss look like?1 / 7

A Warren truss uses diagonal members that zigzag between the top and bottom chords, forming a row of equilateral-looking triangles, with no vertical members needed.

Engineering