Scelta multipla
Which of the following best describes what one is equal to?
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Indice
- 0. Math Review31m
- 1. Intro to Physics Units1h 29m
- 2. 1D Motion / Kinematics4h 42m
- Vectors, Scalars, & Displacement13m
- Average Velocity32m
- Intro to Acceleration7m
- Position-Time Graphs & Velocity26m
- Conceptual Problems with Position-Time Graphs22m
- Velocity-Time Graphs & Acceleration5m
- Calculating Displacement from Velocity-Time Graphs15m
- Conceptual Problems with Velocity-Time Graphs10m
- Calculating Change in Velocity from Acceleration-Time Graphs10m
- Graphing Position, Velocity, and Acceleration Graphs11m
- Velocity Functions with Calculus28m
- Acceleration Functions with Calculus16m
- Kinematics Equations37m
- Vertical Motion and Free Fall19m
- Catch/Overtake Problems23m
- 3. Vectors2h 43m
- Review of Vectors vs. Scalars1m
- Introduction to Vectors7m
- Adding Vectors Graphically22m
- Vector Composition & Decomposition11m
- Adding Vectors by Components13m
- Trig Review24m
- Unit Vectors15m
- Introduction to Dot Product (Scalar Product)12m
- Calculating Dot Product Using Components12m
- Intro to Cross Product (Vector Product)23m
- Calculating Cross Product Using Components17m
- 4. 2D Kinematics2h 22m
- 5. Projectile Motion3h 6m
- 6. Intro to Forces (Dynamics)3h 36m
- Newton's First & Second Laws16m
- Types Of Forces & Free Body Diagrams20m
- Forces & Kinematics12m
- Vertical Forces & Acceleration23m
- Vertical Equilibrium & The Normal Force18m
- Forces with Calculus13m
- Forces in 2D36m
- Equilibrium in 2D24m
- Newton's Third Law & Action-Reaction Pairs11m
- Forces in Connected Systems of Objects38m
- 7. Friction, Inclines, Systems2h 44m
- 8. Centripetal Forces & Gravitation7h 26m
- Uniform Circular Motion7m
- Period and Frequency in Uniform Circular Motion20m
- Centripetal Forces15m
- Vertical Centripetal Forces10m
- Flat Curves9m
- Banked Curves10m
- Newton's Law of Gravity30m
- Gravitational Forces in 2D25m
- Acceleration Due to Gravity13m
- Satellite Motion: Intro5m
- Satellite Motion: Speed & Period35m
- Geosynchronous Orbits15m
- Overview of Kepler's Laws5m
- Kepler's First Law11m
- Kepler's Third Law16m
- Kepler's Third Law for Elliptical Orbits15m
- Gravitational Potential Energy21m
- Gravitational Potential Energy for Systems of Masses17m
- Escape Velocity21m
- Energy of Circular Orbits23m
- Energy of Elliptical Orbits36m
- Black Holes16m
- Gravitational Force Inside the Earth13m
- Mass Distribution with Calculus45m
- 9. Work & Energy2h 11m
- 10. Conservation of Energy3h 4m
- Intro to Energy Types3m
- Gravitational Potential Energy10m
- Intro to Conservation of Energy32m
- Energy with Non-Conservative Forces20m
- Springs & Elastic Potential Energy19m
- Solving Projectile Motion Using Energy13m
- Motion Along Curved Paths4m
- Rollercoaster Problems13m
- Pendulum Problems13m
- Forces from Potential Energy Functions using Calculus9m
- Energy in Connected Objects (Systems)24m
- Force & Potential Energy18m
- 11. Momentum & Impulse3h 58m
- Intro to Momentum11m
- Intro to Impulse19m
- Impulse with Variable Forces12m
- Calculating Impulse with Calculus13m
- Intro to Conservation of Momentum17m
- Push-Away Problems19m
- Types of Collisions4m
- Completely Inelastic Collisions28m
- Adding Mass to a Moving System8m
- Collisions & Motion (Momentum & Energy)26m
- Ballistic Pendulum14m
- Collisions with Springs13m
- Elastic Collisions24m
- How to Identify the Type of Collision9m
- Intro to Center of Mass15m
- 12. Rotational Kinematics3h 4m
- 13. Rotational Inertia & Energy7h 4m
- More Conservation of Energy Problems54m
- Conservation of Energy in Rolling Motion45m
- Parallel Axis Theorem13m
- Intro to Moment of Inertia28m
- Moment of Inertia via Integration18m
- Moment of Inertia of Systems23m
- Moment of Inertia & Mass Distribution10m
- Intro to Rotational Kinetic Energy16m
- Energy of Rolling Motion18m
- Types of Motion & Energy24m
- Conservation of Energy with Rotation35m
- Torque with Kinematic Equations56m
- Rotational Dynamics with Two Motions50m
- Rotational Dynamics of Rolling Motion27m
- 14. Torque & Rotational Dynamics2h 5m
- 15. Rotational Equilibrium4h 8m
- 16. Angular Momentum3h 6m
- Opening/Closing Arms on Rotating Stool18m
- Conservation of Angular Momentum46m
- Angular Momentum & Newton's Second Law10m
- Intro to Angular Collisions15m
- Jumping Into/Out of Moving Disc23m
- Spinning on String of Variable Length20m
- Angular Collisions with Linear Motion8m
- Intro to Angular Momentum15m
- Angular Momentum of a Point Mass21m
- Angular Momentum of Objects in Linear Motion7m
- 17. Periodic Motion2h 9m
- 18. Waves & Sound3h 40m
- Intro to Waves11m
- Velocity of Transverse Waves21m
- Velocity of Longitudinal Waves11m
- Wave Functions31m
- Phase Constant14m
- Average Power of Waves on Strings10m
- Wave Intensity19m
- Sound Intensity13m
- Wave Interference8m
- Superposition of Wave Functions3m
- Standing Waves30m
- Standing Wave Functions14m
- Standing Sound Waves12m
- Beats8m
- The Doppler Effect7m
- 19. Fluid Mechanics4h 31m
- 20. Heat and Temperature3h 7m
- Temperature16m
- Linear Thermal Expansion14m
- Volume Thermal Expansion14m
- Moles and Avogadro's Number14m
- Specific Heat & Temperature Changes12m
- Latent Heat & Phase Changes16m
- Intro to Calorimetry21m
- Calorimetry with Temperature and Phase Changes15m
- Advanced Calorimetry: Equilibrium Temperature with Phase Changes9m
- Phase Diagrams, Triple Points and Critical Points6m
- Heat Transfer44m
- 21. Kinetic Theory of Ideal Gases1h 50m
- 22. The First Law of Thermodynamics1h 26m
- 23. The Second Law of Thermodynamics3h 11m
- 24. Electric Force & Field; Gauss' Law4h 47m
- Electric Charge15m
- Charging Objects6m
- Charging By Induction3m
- Conservation of Charge5m
- Coulomb's Law (Electric Force)47m
- Coulomb's Law with Calculus16m
- Electric Field40m
- Electric Fields with Calculus39m
- Electric Fields in Capacitors16m
- Electric Field Lines16m
- Dipole Moment8m
- Electric Fields in Conductors7m
- Electric Flux21m
- Electric Flux with Calculus8m
- Gauss' Law32m
- 25. Electric Potential2h 30m
- 26. Capacitors & Dielectrics2h 18m
- 27. Resistors & DC Circuits3h 18m
- 28. Magnetic Fields and Forces2h 23m
- 29. Sources of Magnetic Field2h 30m
- Magnetic Field Produced by Moving Charges10m
- Magnetic Field Produced by Straight Currents27m
- Magnetic Force Between Parallel Currents12m
- Magnetic Force Between Two Moving Charges9m
- Magnetic Field Produced by Loops and Solenoids42m
- Toroidal Solenoids aka Toroids12m
- Biot-Savart Law with Calculus18m
- Ampere's Law (Calculus)17m
- 30. Induction and Inductance4h 4m
- 31. Alternating Current2h 37m
- Alternating Voltages and Currents18m
- RMS Current and Voltage9m
- Phasors20m
- Resistors in AC Circuits9m
- Phasors for Resistors7m
- Capacitors in AC Circuits16m
- Phasors for Capacitors8m
- Inductors in AC Circuits13m
- Phasors for Inductors7m
- Impedance in AC Circuits18m
- Series LRC Circuits11m
- Resonance in Series LRC Circuits10m
- Power in AC Circuits5m
- 32. Electromagnetic Waves2h 14m
- 33. Geometric Optics5h 47m
- Ray Nature Of Light10m
- Reflection of Light9m
- Index of Refraction16m
- Refraction of Light & Snell's Law22m
- Total Internal Reflection5m
- Plane Mirrors19m
- Concave Mirrors1h 25m
- Convex Mirrors32m
- Thin Lenses33m
- Ray Diagrams For Mirrors35m
- Mirror Equation19m
- Refraction At Spherical Surfaces9m
- Ray Diagrams For Lenses22m
- Thin Lens And Lens Maker Equations24m
- 34. Wave Optics1h 15m
- 35. Optical Instruments1h 7m
- 36. Special Relativity2h 10m
9. Work & Energy
Power
Scelta multipla
Which of the following is the correct SI unit for ?
A
(watt)
B
(volt)
C
(joule)
D
(newton)
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Guida verificata passo dopo passo1
Understand that power in physics is defined as the rate at which work is done or energy is transferred over time.
Recall the formula for power: \( P = \frac{W}{t} \), where \(P\) is power, \(W\) is work done (or energy transferred), and \(t\) is time.
Identify the SI units for each quantity: work or energy is measured in joules (\(J\)), and time is measured in seconds (\(s\)).
Using the formula, the unit of power is joules per second, which is written as \(\frac{J}{s}\).
Recognize that the SI unit for power, \(\frac{J}{s}\), is given a special name called the watt (\(W\)). Therefore, the correct SI unit for power is the watt (\(W\)).
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