657 buscar resultados relacionados Forces and motion

Simulaciones

• Adición de Vectores (HTML5)
• Aterrizaje Lunar
• Campo Eléctrico de Hockey
• Carga Radiante
• Desintegración Alfa
• Difusión (HTML5)
• Energía en el Parque del Patinador:Fundamentos (HTML5)
• Estados de la Materia (HTML5)
• Estados de la Materia:Básico
• Estiramiento del ADN
• Flotabilidad
• Fourier: Haciendo ondas (HTML5)
• Fourier: Haciendo Ondas
• Frecuencias Resonantes
• Fricción (HTML5)
• Fuerzas en 1 Dimensión
• Fuerzas y Movimiento
• Fuerzas y Movimiento:Fundamentos (HTML5)
• Globos y Flotabilidad
• Graficador para cálculo (HTML5)
• Gravedad y Órbitas (HTML5)
• El Hombre en Movimiento
• Interacciones Atómicas (HTML5)
• Juego del Laberinto
• Laboratorio de Colisiones (HTML5)
• Laboratorio de Fuerza de Gravedad: Fundamentos (HTML5)
• Laboratorio de Fuerza Gravitacional (HTML5)
• Laboratorio de Péndulos (HTML5)
• Ley de Coulomb (HTML5)
• Ley de Equilibrio (HTML5)
• Ley de Hook (HTML5)
• Leyes de Kepler (HTML5)
• Masas y Resortes (HTML5)
• Masas & Resortes
• Masas y Resortes: Fundamentos. (HTML5)
• Mi sistema solar (HTML5)
• Mocroondas
• Moléculas y Luz (HTML5)
• Movimiento de la Mariquita 2D
• Movimiento de un Proyectil (HTML5)
• Movimiento en 2D
• Ondas de Radio & Campos Electromagnéticos
• Ondas en una cuerda (HTML5)
• Parque de patinaje de la energía (HTML5)
• Pinzas Ópticas y Aplicaciones
• Presión de Fluido y Flujo
• Propiedades de los gases (HTML5)
• La Rampa
• Rampa: Fuerzas y Movimiento
• Reacciones Reversibles
• Recorrido Trigonométrico (HTML5)
• Resonancia
• Revolución de la Mariquita
• Torque

Actividades

• Forces & Motion: Basics HTML5 - Part 2 (Friction)
• Forces and Motion
• Forces and Motion: Finding the Mass of a Car
• Forces and Motion: Balanced and Unbalanced Forces, and Predicting Changes in Motion (Inquiry Based)
• Forces and Motion: Tug O' War
• Forces and Motion Lesson
• Forces and Motion activity 1: Predicting speed and directions changes (Inquiry Based)
• Types of Forces Investigation
• Rules for Forces
• Force and Motion activity 2: Relating graphs and free body diagrams using Moving Man and Forces 1D (Inquiry Based)
• Energy, Forces, and Motion basics
• Ramp Activity 1: Using free body diagrams for motion on an incline (Inquiry Based)
• Ramp: Forces and Motion Investigation
• Intermolecular Forces and Molecules - Interactive Lecture Demonstration
• Ramp Activity 2: Calculating Net force on an incline (Inquiry Based)
• Experimental Design with Forces
• Forces & Motion
• Forces and Motion activity questions
• Forces and Motion
• Forces and Motion- Effects of Forces on Motion (Investigation)
• Forces and Motion: Basic - Concept Introduction
• Ramp lab
• Forces and Motion
• forces and motion basics
• Ramp Middle School Inquiry
• Fuerzas en una rampa (actividad de indagación)
• Forces and Motion:
• Forces Simulator Activity
• PhET Forces Lab
• Forces Tug of War
• Forces and Motion: Basics Dutch
• Net FOrces
• Forces and Free Body Diagram Lab
• Balanced and Unbalanced Forces - What Causes Acceleration
• Student Guide for PhET - Forces Motion in html5
• forces and motion elhaam
• Introduction to Forces and Newton's Laws
• Impulso no "Forces and Motion: Basics (HTML5)"
• FORCES AND MOTION WITH WORK ENERGY
• Projectile motion
• 2D Motion
• Forces and Motion - Friction and Free Body Diagrams
• Experimenting with forces (CER)
• Forces, Friction and Motion
• Preguntas desafiantes sobre el segundo principio de Newton
• Ley de Masa
• Games in Net Force
• Investigating Forces and Motion Through Inquiry
• Force and Motion: Basics
• Algebra-based Physics Semester one lessons, clicker questions, and schedule in pdf (Inquiry Based)
• Testing Predictions for Projectile Motion
• Friction and Motion
• Force and Motion
• A Projectile Motion-Introduction (Inquiry Based)
• Applied Forces and Friction and a Review of Newton's 1st and 2nd Law
• Force and Acceleration
• Forca dhe levizja 2
• Newton's 1st & 2nd Laws
• Net Forces and Newton's Second Law
• Forces and Motion: Friction
• Second Law Inquiry PhET Forces and Motion
• Force and Motion Sim Activity
• Force and Motion Investigation
• Forces Virtual Lab Ramp
• motion along straight line with constant speed
• 2ª Lei de Newton e Força de Atrito no "Forces and Motion: Basics (HTML5)"
• Middle School Science
• PHET Motion & Friction Sim Lab
• Forces and Motion with Friction Group Activity
• Force and Motion: Mass vs. Speed
• Guided Discovery (Chinese/English) for Freshman University Physics: 2. Newtonian Mechanics
• Net force
• Discovering Newton's Second Law
• Phet Forces and Motion Basics: Friction lab
• Force and Motion
• Forces in 1 Dimension
• Quadratic Functions for Projectile Motion
• Ladybug Motion 2D Vector controls for circle/elliptical motion (inquiry based)
• Lab 3 - Force and Motion
• Forces i moviment
• Forces and Newton's Laws Review
• Newton's Second Law of Motion
• Turning Forces
• Friction Investigation
• Force
• Força, Massa e Aceleração (Básico) no OA "Forces and Motion: Basics (HTML5)"
• Movimento Retilíneo Uniforme (MRU) no "Forces and Motion: Basics (HTML5)"
• Movimento Retilíneo Uniformemente Variado (MRUV) no "Forces and Motion: Basics (HTML5)"
• Force and Motion
• Effectuer une simulation laboratoire
• Tug Wars: May The Forces Be With You!
• Friction and Acceleration
• Ladybug Revolution activity: Exploring rotational motion (Inquiry Based)
• Projectile Motion Experiment Abdulla
• Gravity and Orbits
• Ladybug Motion in 3rd Grade
• Friction demonstration
• Sugar and Salt Solutions - Annotated Lecture Slides
• motion along straight line with constant speed
• 2nd Law Simulation Lab
• Newton's Second Law
• Experimental Design: Projectile Motion!
• Force and Acceleration
• Math in Motion
• Newtons 1. und 2. Gesetz
• Pushing Things Around
• Change Your Motion
• Force and Motion Basics - Second grade
• Intro Lab
• Introducción a Fricción
• friction
• Friction on Incline
• Moving Man, elementary
• Kinematics
• Air Resistance Lesson
• Comparing Forces on Different Planets
• The Maze Game
• The physics of the triple jump
• Math in Motion - Tasks
• Air Resistance
• Maze Game 2: Vector controls for circular motion (Inquiry Based)
• Modeling Paradigm Lab- 2nd Law
• Force introduction
• Força de Atrito
• Friction Investigation
• Teorema da energia cinética
• Forças em Ação
• Compendio de Actividades e ILDs basadas en simulaciones PhET
• Intermolecular Forces and States of Matter - Interactive Lecture Demonstration
• Forces at equilibrium
• Pendulum Lab 1: Intro to pendulum (Inquiry Based)
• projectile motion
• projectile motion
• Projectile Motion
• project motion
• Projectile Motion Investigation
• Exploring Projectile Motion
• Projectile Motion Exploration
• projectile motion
• Projectile Motion
• Projectile Motion
• Projectile motion
• projectile motion
• Projectile Motion
• Atividade de Força e Movimento
• Gamificação da Força e movimento
• Fuerza y Movimiento
• projectile motion
• Projectile motion
• mesues
• Friction Quantitative Lab
• Fuerza de Rozamiento
• How does mass effect the speed of a forced object?
• Força de Atrito
• Laboratorio de Dinamica lineal
• Video: Self-paced learning on Newton's Second Law
• Acceleration
• Fuerza Neta y Movimiento
• Projectile motion
• Projectile motion experiment
• projectile motion
• Exploring EM Forces
• Projectile Motion
• projectile motion worksheet
• Projectile Motion
• Atividades sobre o movimento dos corpos
• Cinemática (Atividades) nos OA's do PhET
• Projectile Motion Lab
• Motion in Two Dimensions
• projectile motion
• Projectile Motion
• Projectile Motion
• projectile motion
• Force, Mass, Acceleration
• Kracht en beweging
• UNIDAD1 S4 L11 Suma de fuerzas colineales
• Krachten als oorzaak van versnelling en wetten van Newton
• Leis de Newton
• Werkblad simulatie Kracht & Beweging
• Qüvvələr və Hərəkət Əsasları
• Werkblad simulatie kracht en beweging klas 2
• Mjerenje sile trenja
• Leis de Newton e Movimento
• Investigation
• Forças e movimento: Noções Básicas
• Primeira e Introdução à segunda Lei de Newton
• Actividad para formalizar el Primer Principio de Newton y el concepto de Inercia, basada en predicciones
• Introdução as Leis de Newton
• 2. Newtonov zakon
• Laboratorio Segunda Ley de Newton
• Calculating the Acceleration
• Kracht en Beweging. Google Quizen
• Introduction to Net Force
• LEYES DE NEWTON Y FUERZAS DE ROZAMIENTO
• Força e movimento
• Guia de trabajo - Fuerza y Movimiento: Intro
• Video: Self-paced learning on Newton's First Law
• Hoja de Trabajo-Fuerzas y Movimiento
• Qüvvələr və Hərəkət
• friction and acceleration
• La fuerza
• Determine the static and kinetic coefficients of friction
• Kracht en versnelling klas 3 vwo
• OSNOVNI ZAKON GIBANJA
• 2. NEWTONOV ZAKON
• Descubriendo la 1ª ley de Newton
• Milk Trucks
• Preguntas conceptuales
• Jugando al Tira y Afloje
• CDI_ Fuerzas y Movimiento
• Forca dhe levizja 1
• Newton's Second Law Investigation
• qüvvə və hərəkət
• Projectile motion lab report
• Projectile motion worksheet
• Projectile Motion Worksheet
• 3 Activities for Kepler's Laws of Planetary Motion
• Concept questions for Physics using PhET (Inquiry Based)
• Horizontal Projectile Motion
• Projectile Motion (HTML5)
• Projectile Motion (Lab Report)
• Kinematic Equation Activity
• Intro y laboratorio virtual de Tiro Parabólico
• Introduction to Forces in 1-D
• Projectile Motion Simulator
• Projectile motion
• Projectile Motion
• Projectile Motion
• Quantitative Predictions of Projectile Motion
• Projectile Motion
• Conservative and non-conservative forces
• Projectile Motion
• Projectile motion, range, time, velocity
• projectile motion
• 大一物理引導式自我發現 (中文/英文): 動力學 (牛頓定律)
• Projectile Motion Worksheet
• Projectile Motion
• Projectile Motion
• Regents Physics- Projectile Motion Intro
• Projectile Motion
• Projectile Motion
• Projectile Motion
• Balancing Act Homework Activity 1 and 2
• Balance in the up-and-down
• Équilibre de la balançoire
• Projectile Motion
• Projectile Motion
• FRICTION_FORCES_in_1_dimension
• Projectile Motion Experiments
• Maze game: 2 activities in pdf (Inquiry Based)
• projectile motion
• 3 Projectile Motion Factors
• Projectile Motion (#lab)
• projectile motion
• Projectile Motion
• Projectile Motion
• Projectile motion
• Projectile Motion
• projectile motion
• projectile motion
• projectile motion
• Projectile Motion
• projectile motion
• projectile motion
• projectile motion
• ChemActivity: Phase Changes and Intermolecular Forces
• Estática en el balancín: Fuerzas y momentos
• Projectile motion - Lab Report
• Projectile Motion Scientific Enquiry
• projectile motion worksheet
• PROJECTILE MOTION LAB REPORT
• Projectile Motion
• Projectile Motion - developing understanding.
• Projectile Motion Experiments
• Forces at Equlibrium
• Projectile Motion Lab Report
• equilibrium of forces
• Projectile motion
• Projectile Motion Worksheet
• Investigating Projectile Motion
• Projectile motion lab activity
• projectile motion experiment
• Projectile Motion Simulator Worksheet
• 2D Motion Activity
• projectile motion simulation
• Projectile motion lab
• Projectile motion
• projectile motion
• Projectile motion
• Projectile Motion
• Exploring Vectors and Projectile Motion
• projectile motion
• Projectile Motion - Lab Experiment
• Projectile Motion Discovery
• Projectile Motion - Physics 1 Lab
• Projectile Motion (Anwar Mabrouk Al-Talha)
• Projectile Motion
• projectile motion
• Projectile Motion
• Forces in 1 and 2 Dimensions
• motion along straight line with constant acceleration
• Projectile motion and horizontal component of its velocity
• Maze Game 1: Using vector representations to move through a maze (Inquiry Based)
• Kinetic Molecular Theory- Introduction (inquiry-based)
• Conservation of Energy 1: Introduction (qualitative approach)
• Conservation of Energy 2: graphs analysis
• Projectile of motion - time of flight (horizontal projectile)
• Inquiry Projectile Activity
• Projectile Motion Virtual Lab Activity
• Projectile Simuation
• SBL-Projectile Motion
• LEARNING AND SIMULATING PROJECTILE MOTION
• Horizontal Projectile Motion Experiment
• Horizontal Projectile Motion
• projectile motion hanan
• Projectile Motion Worksheet
• Free-Fall and Projectile Motion
• Projectile Motion
• Projectile motion
• Projectile Motion
• Projectile Motion
• Force-time graph activity
• Projectile motion
• projectile motion
• Maze Game II (circular motion)
• Projectile Motion
• Projectile Motion
• Get in Motion!
• PRACTICAS DE SIMULACIONES
• Projectile Motion ( including air resistance )
• Projectile Motion - Fired at an Angle
• Projectile Motion Lab Report
• Projectile Motion
• Projectile Motion in Sports
• Projectile motion
• Lançando Projéteis no "Projectile Motion (HTML5)"
• Projectile Motion - Physics 1 lab experiment
• Motion Lab Report
• Rotational Motion
• Horizontal Projectile
• projectile motion
• Motion Graphs
• Projectile Motion Homework
• Projectile Motion Lab Report
• Projectile motion lab report
• projectile motion
• Projectile investigation for Middle School
• Quadratic Projectiles
• Explorando la trayectoria de un proyectil
• La Física del salto triple
• Explorando el movimiento parabólico
• Lluvia de Malvaviscos.
• TIRO PARABÓLICO-FÍSICA.
• A física do salto triplo
• La fisica del salto triplo
• La physique du triple saut
• Motion and Moving Man Simulation Homework
• PhET Projectiles Simulation Lab
• Proving Newton's Second Law
• projectil motion lab report form
• Moving Man (Inquiry Based)
• Projectile Motion Lab Report
• Calculus Grapher: Relating motion graphs to calculus graphs
• IMF and phase changes
• Projectile motion – Complementary Angles and Range
• Dynamics (Gr11) Unit End Exploration
• Dinâmica (Atividades) nos OA's do PhET
• Projectile Motion Investigation
• Projectile Motion-Using kinematic equations
• Queda Livre no "Projectile Motion (HTML5)"
• Comparing Speed and Angle to projectile distance
• Worksheet
• Projectile Motion Experiment
• Projectile Motion: Gravity & Air Resistance
• Coulomb Law Remote Lab
• Mecânica (Atividades) nos OA's do PhET
• Intro to Rotational Motion
• Lançamento Horizontal de Projéteis no "Projectile Motion (HTML5)"
• projectile mothion
• Projectile Motion
• Projectile motion
• Projectile Motion
• Projectile motion
• project motion
• projectile Motion
• projectile motion
• projectile motion
• projectile motion
• Projectile Motion
• Projctile motion
• Projectile Motion Lab #2
• Lançamento Vertical de Projéteis no "Projectile Motion (HTML5)"
• Free fall
• Velocidade e Aceleração no Lançamento de Projéteis no "Projectile Motion (HTML5)"
• Modelling Motion
• Projectile Motion: The Basic Flight Path
• Horizontal projectile motion
• Discovering Newton's Second Law
• States of Matter Basics - Clicker Questions
• Moving Man
• Maze Game
• Moving Man - Velocity vs. Time Graphs
• Gravity: Friend or Foe?
• Friction
• Simple Harmonic Motion
• Oscilatory Motion
• Simple Harmonic Motion (Pendulum & Spring)
• PHET The Moving Man Motion Graphing Model Activity
• Projectiles Air Resistance - It's a Drag
• Projectile
• (Lab Report
• Understanding Projectile Motion
• Projectile Motion and Air Resistance
• Projectile Motion Lab Exploration
• Projectile Motion report
• Project motion worksheet
• projectile motion worksheet
• Projectile motion Experiment
• Horizontal Projectile Motion Lab
• Investigating Springs
• vector addition activity
• Moving Man (Motion Intro)
• Motion Labs using MOVING MAN
• Electric Field Hockey Using Coulomb's Law
• Guided Discovery (Chinese/English) for Freshman University Physics: 1. Kinematics
• Time of flight related to initial speed in a horizontal projectile.
• Fee Fall
• Projectile Motion Phet Simulation Activity
• Projectile Motion--Horizontal and Full Trajectory
• NGSS MS-PS2-5 Aligned
• Microwaves Simulation Activity
• Charges Activity with Various Simulations
• Updated HTML Gravity Sim
• vectors
• Llei de Hooke amb el simulador PhET
• Projectile Lab (Horizontal Launch)
• Projectile Lab (Angled Launch)
• Introduction to rotational motion
• Simple Harmonic Motion & Springs
• Projectile worksheet
• Why do Icebergs Float?
• Moodle et PhetColorado
• Mechanical energy lab - Remote
• Corona vírus vs lançamento de projéteis
• AP Physics PhET Projectile Motion Lab
• Projectile Motion Formal Lab Development and Report
• Investigating Climate Change at the Macroscopic and Microscopic Level
• Hooke's Law and Simple Harmonic Motion
• Using the Coulomb’s Law PhET Simulation: Concept Development for Understanding Electrostatic Forces
• Entropy, Microstates, and Probability - Interactive Lecture Demonstration Guide
• Molecules and Light-inquiry for high school
• Hooke's Law inquiry lab
• Projectile Parabolas
• PhET Simulations Aligned for AP Physics C
• Pendulum Lab
• PREPARATORIA: Alineación de PhET con programas de la DGB México (2017)
• Gravity and Orbits Investigation
• 1 Dimensional Motion - Kinematics and Graphing
• Energy Transformations
• Describing Location and Movement
• Mr. (Moving Man)
• Moving Man Motion Graph Review
• Lunar Lander; Let the Force Be With You
• Electric Field Lab
• The "Lifelike" Moving Man: Variation in motion graphs
• Galileo's Skater Down an Inclined Plan
• Movimiento Armonico Simple: El pendulo y el resorte (Simple Harmonic Motion:pendulum and spring
• Electric Field Hockey Post-Game Analysis
• free fall
• Moving Man Activity
• Wave Motion
• Investigate the Energy of a Pendulum
• Alignment of PhET sims with NGSS
• How do PhET simulations fit in my middle school program?
• Exploring Newton
• Exploring Newtons' Second Law
• חקר כוח חיכוך
• Force of Friction Graphing Ff=(mu)Fn
• Kepler's Laws and Orbits
• Electric Field Intro
• Gravity and Orbits Student Guide
• Unusual cases of oscillation
• PRIMARIA: Alineación con programas de la SEP México (2011 y 2017)
• Video: Self-paced learning - Moving Man Simulation (Motion Graphs)
• Video: Self-paced Investigation on Simple Harmonic Motion of a spring-mass system
• Lunar Lander!
• Moving Man and Maze Game Simulations Homework
• Student Guide for PhET - States of Matter in html5
• Roller Coaster Physics Investigation
• Balancing Act Remote Lab
• Practica Tiro Parabolico (traduccion)
• Movimiento Parabolico. Comaparacion de datos
• Movimiento Parabolico
• Pendulum Lab
• SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017)
• Mapping of PhET and IBDP Physics
• Ladybug Activity
• Moving Man: Anayzing Graphs
• Moving the Man
• Applications of Sinusoidal Functions
• Moving Man Questions
• Activity sheet_Resonance
• Investigating the Parameters of Circular Orbits
• Energy Skate Park Student Simulation
• ปฏิบัติการเรื่องกฎของฮุคและการเคลื่อนที่แบบSHM
• The Simple Pendulum- What affects the Period of the pendulum?
• Moving Man guided inquiry
• Constant Acceleration Motion
• Satellite Motion Lab
• uniformly accelerated motion
• Guided Discovery (Chinese/English) for Freshman University Physics: 5. Introduction to Waves
• Walker Lab with Moving Man sim
• Orbits--effects of mass and distance
• Preguntas de razonamiento para todas las simulaciones HTML5
• Energy Skate Park Formal Lab
• projectile
• Modeling a linear simple harmonic oscillator
• Movimento de projéteis
• Determination of angle of projection for maximum range
• Projectile launch angle vs displacement
• Tir parabòlic
• Projectile
• Horizontal Release Projectile Relationships
• Projectile Investigation
• Lançamento Oblíquo
• Trabajo práctico: Tiro Parabólico
• Projectile Guided Inquiry
• Lançamento de Projéteis
• Lançamento Oblíquo Inicial
• Launching Pumpkins - Solving Quadratic Functions
• Atividade de Lançamento Oblíquo
• Der gerade Wurf
• projectile
• Movimiento en dos dimensiones: Caso del Proyectil (Two dimensions movement, projectile case).
• Motions Air resistance
• Lançamento Vertical no PhET
• HOJA DE TRABAJO
• Composició de moviments. Moviment parabòlic. PhET
• Lançamento de projéteis
• ESTUDIO Y OBSERVACIÓN DEL MOVIMIENTO DE UN PROYECTIL
• Lançamento de projétil
• Laboratorio de movimiento de proyectiles con simuladores PhET
• Horizontal Launch Investigation
• Laboratorio Movimiento parabólico con Phet y Graph
• PHET Free Fall Lab
• Plan de clases - Lanzamiento de proyectil
• MS and HS TEK to Sim Alignment
• Moving Man Simulation Activity
• Balancing Act
• Balancing Act
• Energy Skate Park: Basics
• Introduction to oscillations and SHM
• Chemistry - Introduction to Coulomb's Law
• Conservation Of Mechanical Energy
• Lab Experiment
• Conservation of Mechanical Energy
• States of Matter
• MOVIMENTO CIRCULAR UNIFORME
• Applications of Parametric Equations
• Linear and Quadratic Functions: analysis using graphing
• Guia de trabajo - Movimiento Mariquita 2D
• Pendulum Lab COV Investigations
• Newton's Laws and the Lunar Lander
• Lady Bug Revolution Activity
• Constant Velocity & Uniform Acceleration with the Moving Man
• Factors Affecting The Frequency of A simple Harmonic Oscillator
• Simple Harmonic Motion Virtual Modeling Lab PhET
• Moving Man: Simple Acceleration
• Waves on a string
• Space Cadets Lunar Landing Showdown
• Electric Field Hockey Homework
• Statics and Voltages
• Physics Lab Worksheet Momentum.docx
• Conservation of Mechanical Energy (Lab Report)
• Conservation of Mechanical Energy
• Vector
• Introducción a la Física: medidas, unidades y relación entre variables
• Investigating Gravitational Interactions
• Work Energy on a Ramp
• Moving Man
• 8th Grade Science teacher
• States of Matte Inquiry
• Conservation of Mechanical Energy
• 大一物理引導式自我發現 (中文/英文): 運動學
• Balanced & Unbalanced Torque Webquest
• Spring Mass Experiment
• simple pendulum lap
• Simple Pendulum
• การทดลองOnline 1 เรื่อง ลูกตุ้มนาฬิกาอย่างง่าย
• Moving Man with Position and Velocity graphs
• Introductions to Solutions
• Balancing Torques and Equilibrium
• Pendulum Energy
• Vector Addition Worksheet
• THE MOVING MAN: DISTANCE, DISPLACEMENT, SPEED & VELOCITY
• Position function of mass on spring
• Moving Man Multiple Representations
• States of Matter - Lab Simulation - student procedures and questions
• Energy Skate Park Lesson
• POGIL-style simulation analysis
• Wave pre-lecture introduction for regular level
• Hooke's Law, Spring Constant, and Energy HONORS
• How can sound waves cause a window to shake?