'2nd class lever' diaporamas de présentation

(Are they really that simple?!)

(Are they really that simple?!). What have we learned by doing labs and researching for our notes?. What is work?. In science, the word work has a different meaning than you may be familiar with.

921 views • 50 slides

Chapter 5

Chapter 5. Work and Machines. Work. The transfer of energy to cause or make an object move. Work. If there is no movement, no work is done Ex: Lifting a text book (work) vs pushing on a brick wall (no movement = no work) . Work and energy.

538 views • 39 slides

Simple Machines Discussion

Simple Machines Discussion. Simple Machines. A simple machine has few or no moving parts. Simple machines make work easier. With or without a simple machine the work is the same. Also when simple machines are combined they can make complicated bigger machines.

602 views • 36 slides

Welcome to Physics Quest!

Welcome to Physics Quest!. Work And Energy Review Game. In this game, you will work individually to answer the questions posed on the screen. Each answer will be given and your lab partner will check to see if you were correct. If you were right, they will record one point for your score.

436 views • 32 slides

Equilibrium of solids

316 views • 31 slides

MACHINES

MACHINES. Chapter 8, Sections 2. What is a machine?. a device that makes work easier by changing the size or direction of a force. Imagine trying to change a tire without a jack or tire iron Everyday machines: Wheel chair Chopsticks Scissors. Work and Machines.

462 views • 25 slides

PROCEDURES

PROCEDURES. What is this for?. Can you do this instead?. If you do this instead of this , you can continue your work while you wait for me. Do this today and at other times when you must wait. Got it?. Share information at your table.

376 views • 25 slides

Muscular System

Muscular System. Muscular Syste m. Muscles use chemical energy to exert a pulling force Many functions Movement of body parts Propel body fluids and food Heartbeat Distribute heat Protects body. Types of Muscle. Smooth Muscle Cardiac Muscle Skeletal Muscle. Smooth Muscle.

888 views • 21 slides

Making WORK easier!

Making WORK easier!. Types of Simple Machines. Pulley. Inclined Plane. Lever. Wheel and axle. Wedge. Screw. Why do we use them?. Machines make work easier (NOT less) by changing either the:. Size of the force. Direction of the force. 50 kg. Mechanical Advantage.

399 views • 19 slides

Torque Applications

Torque Applications. 1. Sprinting 2. Lower Back 3. Pushups 4. Weight lifting 5. Stability 6. Force Couple. Torque Applications. 1. Sprinting. Hip, knee flexion Swing phase Reduce moment arm. Torque Applications. 1. Sprinting Extreme flexion of the hip and knee

698 views • 13 slides

Mechanical Advantage

Mechanical Advantage. What do simple machines do for us anyway?. There are four ways that a machine helps us to do work. Transfers our effort force from one place to another. Ex: seesaw Multiply your effort force. Ex: crowbar Magnify speed and distance. Ex: baseball bat

344 views • 11 slides

Mechanical Advantage

Mechanical Advantage. What do simple machines do for us anyway?. There are four ways that a machine helps us to do work. Transfers our effort force from one place to another. Ex: seesaw Multiply your effort force. Ex: crowbar Magnify speed and distance. Ex: baseball bat

223 views • 11 slides

Simple Machines

Simple Machines. Inclined Plane. Definition: A slanting surface connecting a lower level to a higher level How it makes work easier: It is used to help things move up or down distances Examples: Ramps, stairs, slide, escalator, slope. Wedge .

265 views • 11 slides

Simple Machines

Simple Machines. Inclined Plane. Definition: A slanting surface connecting a lower level to a higher level How it makes work easier: It is used to help things move up or down distances Examples: Ramps, stairs, slide, escalator, slope. Wedge .

224 views • 11 slides

Inclined Plane

Inclined Plane. A flat, sloped surface. Allows you to exert your input force over a longer distance . Decreases Input force!!! Ex: Ramp. Wedge. An inclined plane that moves (thick at one end and thin at the other). Allows you to exert your input force over a longer distance .

237 views • 6 slides

11PHE Exam practice answers

11PHE Exam practice answers. 2011. Explain in detail how and why the biomechanical principle (LEVERS) improves your volleyball skills.

163 views • 2 slides