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Physics: explore STEM content (page 7 of 27) · openstem

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

Explore STEM Content

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

Physics

Mechanics, electromagnetism and quantum on openstem — flashcards, notes, quizzes, plots and sketches shared by the community. Study free, or clone anything into your library.

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Quiz6 questions

A force of 8 N moves a box 3 m in the direction of the force. How much work is done?

A24 JB11 JC5 JD2.67 J

Physics

Physics · L2 · Work & Power

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Physics · L2 · Work & Power

Collection4 items

01Physics · L3 · Universal Gravitation

02Physics · L3 · Universal Gravitation & Orbits

03Physics · L3 · Why a Satellite Stays in Orbit

+1 more

Physics

Physics · L3 · Universal Gravitation

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Physics · L3 · Universal Gravitation

Flowchart9 objects

Physics

Physics · L4 · Kinetic theory of gases · flowchart

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Physics · L4 · Kinetic theory of gases · flowchart

Flashcards8 cards

What does this formula calculate?1 / 8

Electrical power — how fast a device uses energy — from the current (I) flowing through it and the voltage (V) across it.

Physics

Physics · L2 · Electrical Power & Energy

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Physics · L2 · Electrical Power & Energy

Note~189 words · 1 min

Temperature is a number for hot and cold Hot cocoa has a high temperature. An ice cube has a low one. A thermometer measures it, which is how a doctor checks for a fever and a cook checks if dinner is ready. Heat only moves one way Heat alw

Physics

Physics · L1 · Heat & Temperature

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Physics · L1 · Heat & Temperature

Flowchart11 objects

Physics

Physics · L3 · Series or Parallel? Choosing the Formula

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Physics · L3 · Series or Parallel? Choosing the Formula

Flowchart15 objects

Physics

Physics · L3 · Reading a Doppler Shift Scenario

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Physics · L3 · Reading a Doppler Shift Scenario

Flashcards9 cards

What is periodic motion?1 / 9

Periodic motion is any motion that repeats itself over and over in the same regular pattern — a swinging pendulum, a bouncing ball on a trampoline, a rocking chair, or the ticking pendulum inside a grandfather clock.

Physics

Physics · L2 · Pendulums & Periodic Motion

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Physics · L2 · Pendulums & Periodic Motion

Flowchart11 objects

Physics

Physics · L4 · Rotational Dynamics, Torque & Angular Momentum · flowchart

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Physics · L4 · Rotational Dynamics, Torque & Angular Momentum · flowchart

Note~395 words · 2 min

One balance point Every object has a single point where all its weight seems to act from: the centre of mass. Support it exactly there and it balances, however oddly the weight is spread around. The rule for staying up The base of support i

Physics

Physics · L2 · Center of Mass & Stability

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Physics · L2 · Center of Mass & Stability

Collection4 items

01Physics · L2 · Magnetic Field Lines & Earth's Magnetism

02Physics · L2 · Magnetic Field Lines & Earth's Magnetism

03Physics · L2 · Reading a Magnetic Field Line Diagram

+1 more

Physics

Physics · L2 · Magnetic Field Lines & Earth's Magnetism

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Physics · L2 · Magnetic Field Lines & Earth's Magnetism

Collection4 items

01Physics · L3 · Lenses & Optical Instruments

02Physics · L3 · Lenses & Optical Instruments

03Physics · L3 · What Kind of Image Does This Lens Form?

+1 more

Physics

Physics · L3 · Lenses & Optical Instruments

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Physics · L3 · Lenses & Optical Instruments

Quiz6 questions

What primarily distinguishes a plasma from an ordinary ionised gas that is not considered 'a plasma'?

AA plasma has no free chargesBA plasma exhibits collective behaviour from long-range electromagnetic coupling between particlesCA plasma must be at absolute zero temperatureDThere is no meaningful distinction

Physics

Physics · L5 · Plasma Physics

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Physics · L5 · Plasma Physics

Flowchart20 objects

Physics

Physics · L4 · Series RLC Circuit: Computing Total Impedance

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Physics · L4 · Series RLC Circuit: Computing Total Impedance

Flowchart19 objects

Physics

Physics · L1 · Choosing a Simple Machine

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Physics · L1 · Choosing a Simple Machine

Flowchart13 objects

Physics

Physics · L5 · Reading a QED Feynman Diagram: Electron–Electron Scattering

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Physics · L5 · Reading a QED Feynman Diagram: Electron–Electron Scattering

Flowchart9 objects

Physics

Physics · L1 · Why a Paperclip Can Float on Water

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Physics · L1 · Why a Paperclip Can Float on Water

Quiz8 questions

Bloch's theorem states that an electron eigenstate in a periodic potential takes the form:

Aψ(r) = A sin(kr), independent of the latticeBψ_k(r) = e^{ik·r} u_k(r), with u_k periodic in the latticeCψ(r) = Σ c_n φ_n(r), a fixed sum of atomic orbitals onlyDψ_k(r) = e^{-r²/2σ²}, a localised Gaussian packet

Physics

Physics · L5 · Condensed Matter Physics

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Physics · L5 · Condensed Matter Physics

Quiz6 questions

A single mode of the quantised electromagnetic field is mathematically equivalent to:

AA free particleBA quantum harmonic oscillatorCA rigid rotorDA two-level atom only

Physics

Physics · L5 · Quantum Optics

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Physics · L5 · Quantum Optics

Flowchart17 objects

Physics

Physics · L2 · Snowshoe vs Boot Heel: Same Force, Different Pressure

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Physics · L2 · Snowshoe vs Boot Heel: Same Force, Different Pressure

Flowchart12 objects

Physics

Physics · L1 · Why a Rolling Ball Stops

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Physics · L1 · Why a Rolling Ball Stops

Collection4 items

01Physics · L2 · Echoes, Sound Reflection & Sonar

02Physics · L2 · Echoes, Sound Reflection & Sonar

03Physics · L2 · Measuring Distance With an Echo

+1 more

Physics

Physics · L2 · Echoes, Sound Reflection & Sonar

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Physics · L2 · Echoes, Sound Reflection & Sonar

Flowchart11 objects

Physics

Physics · L2 · Echoes, Sound Reflection & Sonar · flowchart

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Physics · L2 · Echoes, Sound Reflection & Sonar · flowchart

Note~220 words · 1 min

White light is secretly every colour Sunlight looks plain white, but red, orange, yellow, green, blue and purple are all mixed together inside it. A prism is a shaped piece of glass that splits them apart. It bends each colour by a slightly

Physics