{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Per7_over

# Per7_over - Preview of Period 7 Simple Machines and...

This preview shows pages 1–5. Sign up to view the full content.

Preview of Period 7: Simple Machines and Mechanical Advantage 7.1 Levers How do machines, such as levers, reduce the force needed to lift heavy objects? 7.2 Examples of Levers How does the use of levers make our lives easier? 7.3 Lever Arm Length and Distance Moved How does the length of the lever arm relate to the distance the ends of the arm move? 7.4 How Do Levers Work? Why can we use the length of the lever and load arms to find the forces on the lever? 7.5 Mechanical Advantage What is the theoretical and actual mechanical advantage of a simple machine? 7-1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Act. 7.1: Levers – Fulcrums and Forces Machines allow you to lift heavy objects easily. You can apply a small force in over a long lever arm to produce a large force out over a short load arm. 7-2 Fulcrum Load Load Arm Lever Arm Force In
Examples of Levers Pliers Scissors Human Arm Load Arms Fulcrum Lever Arms Fulcrum Lever Arms Variable Length Load Arms Fulcrum Lever Arm Load Arm 7-3

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Act 7.3: Lever Arm Length and Distance Moved What is the relationship between the length of a lever arm and the distance the end of the lever arm moves?
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern