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Engineering: explore STEM content (page 25 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.

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Flowchart7 objects

Engineering

Engineering · L2 · Hydraulics: Multiplying Force With Liquid · flowchart

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Engineering · L2 · Hydraulics: Multiplying Force With Liquid · flowchart

Flowchart5 objects

Engineering

Engineering · L3 · Quality Control & Testing · flowchart

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Engineering · L3 · Quality Control & Testing · flowchart

Note~268 words · 1 min

Why a joint is solvable The sign convention Worked: a 3-member truss Each diagonal is a 3-4-5 slope, so sin = 0.6 and cos = 0.8. Check at joint C: each diagonal pushes up 0.6 × 500 = 300 N, and 300 + 300 balances the 600 N load exactly. Zer

Engineering

Engineering · L3 · Truss Analysis: Method of Joints

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Engineering · L3 · Truss Analysis: Method of Joints

Note~157 words · 1 min

Why count the cost first? Before engineers start building, they add up what all the parts will cost. That way they know the total in advance and don't run out of money halfway through. You can do exactly the same for a school project. A car

Engineering

Engineering · L1 · Counting the Cost of a Project

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Engineering · L1 · Counting the Cost of a Project

Flowchart14 objects

Engineering

Engineering · L3 · Signal Through a Non-Inverting Amplifier

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Engineering · L3 · Signal Through a Non-Inverting Amplifier

Collection5 items

01Engineering · L3 · Shear Stress

02Engineering · L3 · Shear Stress

03Engineering · L3 · Shear Stress

+2 more

Engineering

Engineering · L3 · Shear Stress

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Engineering · L3 · Shear Stress

Flashcards10 cards

What is a "requirement", in engineering terms?1 / 10

A specific, written statement of something the finished design must be able to do — a rule the design has to satisfy, decided before any building or drawing starts.

Engineering

Engineering · L2 · Requirements Gathering

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Engineering · L2 · Requirements Gathering

Flowchart9 objects

Engineering

Engineering · L2 · Gear Ratio, Step by Step

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Engineering · L2 · Gear Ratio, Step by Step

Collection5 items

01Engineering · L3 · Viscosity & Flow Regimes

02Engineering · L3 · Viscosity in Engineering Practice

03Engineering · L3 · Viscosity & Flow Regimes

+2 more

Engineering

Engineering · L3 · Fluid Viscosity

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Engineering · L3 · Fluid Viscosity

Collection4 items

01Engineering · L2 · Arches & Domes

02Engineering · L2 · Arches & Domes

03Engineering · L2 · How Load Flows Through an Arch

+1 more

Engineering

Engineering · L2 · Arches & Domes

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Engineering · L2 · Arches & Domes

Flowchart12 objects

Engineering

Engineering · L2 · A Line-Following Robot's Loop

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Engineering · L2 · A Line-Following Robot's Loop

Flowchart5 objects

Engineering

Engineering · L1 · Remote Controls & Signals Quiz · flowchart

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Engineering · L1 · Remote Controls & Signals Quiz · flowchart

Flashcards9 cards

What does a material's R-value measure?1 / 9

R-value is a number that quantifies how well a material resists the flow of heat through it — the higher the R-value, the better the material insulates. It's a property of a specific thickness of material, not just the material itself.

Engineering

Engineering · L3 · R-Value & Thermal Resistance

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Engineering · L3 · R-Value & Thermal Resistance

Note~119 words · 1 min

How a capacitor charges Connect an uncharged capacitor to a DC supply through a resistor and the voltage doesn't jump. It climbs, fast at first and then slower, never quite arriving. Drag τ. A small τ (low resistance or small capacitance) g

Engineering

Engineering · L3 · RC Charging in Action

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Engineering · L3 · RC Charging in Action

Note~208 words · 1 min

Some materials carry heat fast Leave a metal spoon in a hot pot of soup and the handle is too hot to hold within a minute. Metal is a good heat conductor: heat races through it. Try a wooden spoon and the handle stays cool, however long it

Engineering

Engineering · L1 · Materials That Change With Heat

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Engineering · L1 · Materials That Change With Heat

Flowchart10 objects

Engineering

Engineering · L2 · Friction in Design · flowchart

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Engineering · L2 · Friction in Design · flowchart

Flowchart7 objects

Engineering

Engineering · L3 · AC Circuits — Numeric Problems · flowchart

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Engineering · L3 · AC Circuits — Numeric Problems · flowchart

Note~475 words · 2 min

A manipulator is a chain of rigid links joined by joints. Two questions drive everything: given the joint angles, where is the tool? And given a desired motion, what torques do the motors need? Forward and inverse kinematics Denavit-Hartenb

Engineering

Engineering · L5 · Robot kinematics and dynamics: from joint angles to end-effector motion

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Engineering · L5 · Robot kinematics and dynamics: from joint angles to end-effector motion

Flowchart7 objects

Engineering

Engineering · L2 · Choosing the Right Prototyping Method · flowchart

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Engineering · L2 · Choosing the Right Prototyping Method · flowchart

Quiz6 questions

Which way does heat naturally flow between two places at different temperatures?

AFrom cooler to warmerBFrom warmer to coolerCIt does not move at allDRandomly, in both directions equally

Engineering

Engineering · L2 · Heat Transfer & Insulation Quiz

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Engineering · L2 · Heat Transfer & Insulation Quiz

Flowchart12 objects

Engineering

Engineering · L5 · Kalman filter predict-update recursion

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Engineering · L5 · Kalman filter predict-update recursion

Quiz7 questions

For an ideal transformer with turns ratio a = N₁/N₂ = 10, if the primary voltage is 100 V, what is the secondary voltage?

A1000 VB100 VC10 VD0.1 V

Engineering

Engineering · L4 · Electrical Machines & Power Systems — 7 Q

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Engineering · L4 · Electrical Machines & Power Systems — 7 Q

Flowchart9 objects

Engineering

Engineering · L2 · Standards & Codes · flowchart

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Engineering · L2 · Standards & Codes · flowchart

Flashcards9 cards

Why do engineers draw circuits with symbols instead of photos of real wires and parts?1 / 9

Symbols are quick to draw, easy to read, and mean the same thing to every engineer everywhere — no matter what the real battery or bulb actually looks like.

Engineering

Engineering · L2 · Circuit Diagram Symbols

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Engineering · L2 · Circuit Diagram Symbols

Flashcards9 cards

What is the difference between a digital signal and an analog signal?1 / 9

A digital signal only ever takes discrete states — usually just 0 (off/low) and 1 (on/high). An analog signal can take any value across a continuous range, like a volume dial that can sit anywhere between 'off' and 'max'.

Engineering

Engineering · L3 · Digital Logic Gates

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Engineering · L3 · Digital Logic Gates

Flashcards10 cards

What does a pump's "head" mean, in plain terms?1 / 10

Head is the pump's pressure output re-expressed as an equivalent height of fluid column. A pump rated at 10 m of head could, in principle, push water straight up a vertical pipe 10 m before running out of push — that's much easier to picture than a raw pressure number in pascals.

Engineering

Engineering · L3 · Pumps & Head

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Engineering · L3 · Pumps & Head

Collection5 items

01Engineering · L2 · Heat Transfer & Insulation

02Engineering · L2 · Heat Transfer & Insulation

03Engineering · L2 · Heat Transfer & Insulation

+2 more

Engineering

Engineering · L2 · Heat Transfer & Insulation

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Engineering · L2 · Heat Transfer & Insulation

Flashcards8 cards

What is a beam bridge?1 / 8

A beam bridge is just a flat plank laid across a gap, resting on a support at each end — like a wooden board across a puddle.

Engineering

Engineering · L1 · Bridges for Kids

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Engineering · L1 · Bridges for Kids

Flowchart23 objects

Engineering

Engineering · L4 · Single-DOF vibration response by damping ratio

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Engineering · L4 · Single-DOF vibration response by damping ratio

Note~252 words · 1 min

Draw it before you build it Before a brick is laid or metal is cut, engineers draw a plan. It lets the engineer, the builder and the client agree on exact size and shape while changes are still cheap. One picture isn't enough Draw a mug fro

Engineering

Engineering · L2 · Engineering Drawing & Scale

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Engineering · L2 · Engineering Drawing & Scale

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