01 11 10

放下它的超然智慧

納米比土著

The new pope franciscus i rome_march 2013-(catherine)

The document discusses the recent changes in leadership of the Pope of Rome. Pope Benedictus XVI, born in 1927 in Germany, served as Pope from 2005 until his resignation on February 28, 2013. He was succeeded by Pope Franciscus I, who became the new Pope of Rome in March 2013. Pope Johannes Paulus II, born in 1920 in Poland, served as Pope from 1978 until his death in 2005 and was declared a saint in 2011.

冬蟲夏草是蟲還是草

世界最冷之地

MatematicaAdalberto Martinez

Homes for Everyone Introduction

The document provides instructions for a class on electricity. It tells students to gather materials like textbooks and whiteboards before the bell. It then instructs students to write down household items that use electricity on their whiteboards. They will share lists with another table to compare and add any missing items. Next, the class will read about electricity from their textbooks and learn about their chapter challenge. They are asked what two electrical use factors must always be true for an energy efficient home. Finally, the class will watch videos about Habitat for Humanity.

Long ago (catherine)

地心之旅Jaing Lai

Homes for Everyone Chapter Challenge Introduction

The document provides instructions for a class on electricity. It tells students to gather materials like textbooks and whiteboards before the bell. It instructs students to make lists of electric items in their homes on whiteboards, then share lists with another table to compare and add any forgotten items. Students are directed to open textbooks to page 594 to read together, and then read page 595 about their challenge. They are asked what two electrical use factors must always be true for an energy efficient home. Finally, two videos on Habitat for Humanity will be shown.

Powerpoint

Cause and effect relationship between wave speed frequency wavelength

Characteristics of waves

Contenu connexe

En vedette

很有感觸的一封信

暴雨洪水成災Floodingin chinaJaing Lai

肺腑之言Jaing Lai

享受人生吧

人生中的每一個覺醒

印度普什卡駱駝市集（Pushkar Mela）

Amazing illustrations (catherine)

HSNS361 Wriiten Assignment

欣賞Ross的美麗油畫風景

放下它的超然智慧

納米比土著

The new pope franciscus i rome_march 2013-(catherine)

冬蟲夏草是蟲還是草

世界最冷之地

MatematicaAdalberto Martinez

Homes for Everyone Introduction

Long ago (catherine)

地心之旅Jaing Lai

En vedette (18)

很有感觸的一封信

暴雨洪水成災Floodingin china

肺腑之言

享受人生吧

人生中的每一個覺醒

印度普什卡駱駝市集（Pushkar Mela）

Amazing illustrations (catherine)

HSNS361 Wriiten Assignment

欣賞Ross的美麗油畫風景

放下它的超然智慧

納米比土著

The new pope franciscus i rome_march 2013-(catherine)

冬蟲夏草是蟲還是草

世界最冷之地

Matematica

Homes for Everyone Introduction

Long ago (catherine)

地心之旅

Plus de Jan Parker

Homes for Everyone Chapter Challenge Introduction

Powerpoint

Cause and effect relationship between wave speed frequency wavelength

Characteristics of waves

Review relationship between string length, tension, and pitch

Relationship between string length, tension, and pitch

- The document discusses an investigation into how the tension and length of vibrating strings affects the pitch of the sound produced. It describes the independent and dependent variables and provides examples of how tension and length are manipulated in different instruments to change pitch. - Increasing the tension of a string increases its pitch. In the investigation, tension was increased by tightening the string. - Decreasing the length of a string increases its pitch. On instruments like guitars, pitch is increased by pressing fingers further down the neck to shorten the vibrating length of the string. - Pitch and frequency are directly related, with higher pitch corresponding to higher frequency. Frequency can be measured quant

Conservation of momentum

The document outlines the day's physics lesson plan which includes conducting an investigation, taking notes, and solving momentum problems. Students are instructed to gather materials and solve a warm-up problem. The lab activity will involve experiments and calculations on conservation of momentum using formulas to relate momentum before and after collisions between objects. Sample problems demonstrate applying the conservation of momentum principle to determine final velocities when objects stick together or move apart after collisions.

Momentum

Today's physics lesson will cover momentum. Momentum is defined as mass multiplied by velocity (P=mv). A slow moving truck and fast moving roller skate can have the same momentum if the product of their masses and velocities are equal, such as a 1000kg truck moving at 0.01m/s and a 1kg skate at 10m/s. For cars traveling at the same speed, their momentum is determined by their masses, so a 2000kg car has twice the momentum of a 1000kg car moving at 10m/s. Examples of momentum transfers can be seen in football collisions.

Pressure and Forces

Conservation of Energy

Coefficient of Friction

- The document provides instructions for a physics class, including taking notes on friction and completing an assignment. - It discusses friction as a force that resists the motion of objects in contact and defines key terms like normal force and coefficient of friction. - It presents an example calculation of the coefficient of sliding friction using the weight of a shoe and the force required to make it slide.

Conservation of energy for web

Law of Inertia and Running Starts

1. The document discusses frames of reference and how an object's motion depends on the chosen reference frame. 2. It gives examples of how the speed of a ball shot from a toy cannon on a moving skateboard or train depends on whether it is measured relative to the moving object or a stationary observer. 3. Key ideas are that an object can have different speeds depending on the reference frame used, and its total velocity is the sum of speeds relative to different frames of reference.

2nd Law of Motion and Free Body Diagrams

The document provides instructions for a lab on Newton's Second Law of Motion. Students are told to get their lab books and materials ready. They will review a previous quiz, read about an investigation, make predictions, take notes, and conduct the investigation. The investigation involves measuring force, mass and acceleration of carts. Students will use an equation relating these variables and take quantitative measurements.

Horizontally Launched Projectiles

Horizontally Launched Projectiles

1. The class will review homework, discuss projectile motion, and work on a physics problem set. Students are told to get out their homework and writing materials. 2. The document explores projectile motion through predictions, observations from experiments, and explanations. Key points made are that horizontal velocity does not affect vertical motion, and a horizontally launched object will follow path C - maintaining its horizontal motion as it falls vertically due to gravity.

2nd Law of Motion

Newton's Second Law relates force, mass, and acceleration using the equation F=ma. The equation can be rearranged to solve for force. Force is measured in Newtons, where 1 Newton is the force needed to accelerate a 1 kilogram mass at 1 meter per second squared. If acceleration is held constant and an object's mass doubles, the force needs to double to maintain the same acceleration according to the Second Law.

Balanced and Unbalanced Forces

When an unbalanced force acts on an object, it causes the object to accelerate. If two forces act simultaneously, both the direction and magnitude of the net force determines the object's motion. If the forces are in the same direction, their sum causes greater acceleration than either individually, while opposing forces may cancel out for no net force or acceleration, or result in a net force and acceleration in one direction.

Law of Inertia and Frames of Reference

Average Speed