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Physics Playground

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© 2026 Physics Playground. Feito para os curiosos.Idioma

Preface
1What is Physics?
2Motion in One Dimension
3Acceleration
4Forces and Newton’s Laws of Motion
5Motion in Two Dimensions
6Circular and Rotational Motion
7Newton's Law of Gravitation
8Momentum
9Work, Energy, and Simple Machines
10Special Relativity
11Thermal Energy, Heat, and Work
12Thermodynamics
13Waves and Their Properties
14Sound
15Light
16Mirrors and Lenses
- Introduction
- 16.1Reflection
- 16.2Refraction
- 16.3Lenses
- Key Terms
- Section Summary
- Key Equations
- Chapter Review
17Diffraction and Interference
18Static Electricity
19Electrical Circuits
20Magnetism
21The Quantum Nature of Light
22The Atom
23Particle Physics
- Introduction
- 23.1The Four Fundamental Forces
- 23.2Quarks
- 23.3The Unification of Forces
- Key Terms
- Section Summary
- Chapter Review
AReference Tables
Index

Biblioteca Physics

Sumário

Preface
1What is Physics?
2Motion in One Dimension
3Acceleration
4Forces and Newton’s Laws of Motion
5Motion in Two Dimensions
6Circular and Rotational Motion
7Newton's Law of Gravitation
8Momentum
9Work, Energy, and Simple Machines
10Special Relativity
11Thermal Energy, Heat, and Work
12Thermodynamics
13Waves and Their Properties
14Sound
15Light
16Mirrors and Lenses
- Introduction
- 16.1Reflection
- 16.2Refraction
- 16.3Lenses
- Key Terms
- Section Summary
- Key Equations
- Chapter Review
17Diffraction and Interference
18Static Electricity
19Electrical Circuits
20Magnetism
21The Quantum Nature of Light
22The Atom
23Particle Physics
- Introduction
- 23.1The Four Fundamental Forces
- 23.2Quarks
- 23.3The Unification of Forces
- Key Terms
- Section Summary
- Chapter Review
AReference Tables
Index

Key Equations

impulse	$F_{net} Δ t F_{net} Δ t$
impulse–momentum theorem	$Δ p = F_{net} Δ t Δ p = F_{net} Δ t$
linear momentum	$p = m v p = m v$
Newton’s second law in terms of momentum	$F_{net} = \frac{Δ p}{Δ t} F_{net} = \frac{Δ p}{Δ t}$

law of conservation of momentum	p_tot = constant, or p_tot = p′_tot
conservation of momentum for two objects	p₁ + p₂ = constant, or p₁ + p₂ = p′₁ + p′₂
angular momentum	L = I $ω ω$

conservation of momentum in any collision, including elastic collisionselastic collision	$m_{1} v_{1} + m_{2} v_{2} = m_{1} {v^{'}}_{1} + m_{2} {v^{'}}_{2}, m_{1} v_{1} + m_{2} v_{2} = m_{1} {v^{'}}_{1} + m_{2} {v^{'}}_{2},$
conservation of momentum in a perfectly inelastic collision	$m_{1} v_{1} + m_{2} v_{2} = (m_{1} + m_{2}) v^{'} m_{1} v_{1} + m_{2} v_{2} = (m_{1} + m_{2}) v^{'}$
conservation of momentum along x-axis for 2D collisions	$m_{1} v_{1} = m_{1} {v^{'}}_{1} \cos θ_{1} + m_{2} {v^{'}}_{2} \cos θ_{2} m_{1} v_{1} = m_{1} {v^{'}}_{1} \cos θ_{1} + m_{2} {v^{'}}_{2} \cos θ_{2}$
conservation of momentum along y-axis for 2D collisions	$0 = m_{1} v^{'}_{1} \sin θ_{1} + m_{2} v^{'}_{2} \sin θ_{2} 0 = m_{1} v^{'} 1 \sin θ_{1} + m_{2} v^{'} 2 \sin θ_{2}$

Key Equations · Physics · Physics Playground

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AnteriorSection Summary Próxima Concept Items

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