1 / 25

250 likes | 381 Views

Mechanical Advantage and the Inclined Plane: More Practice. Mechanical Advantage and the Inclined Plane: More Practice. Mechanical Advantage and the Inclined Plane: More Practice. Mechanical Advantage and the Inclined Plane: More Practice.

Download Presentation
## Mechanical Advantage and the Inclined Plane: More Practice

**An Image/Link below is provided (as is) to download presentation**
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.
Content is provided to you AS IS for your information and personal use only.
Download presentation by click this link.
While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

**Levers and Torque: Student Learning Goal**The student will be able to solve problems involving torque, force, load-arm length, and effort-arm length as they relate to levers (C2.5).**Levers and Torque**SPH4C**The Lever**A lever is a rigid bar that can rotate freely around a support called a fulcrum.**Torque**When a force causes a rigid body to rotate, we say that a torque has been applied. Torque is defined as the turning effect.**Torque**Torque (T) increases as force (F) increases and also increases as distance (d) from the fulcrum increases:**Torque**Torque (T) increases as force (F) increases and also increases as distance (d) from the fulcrum increases:**Torque**Torque (T) increases as force (F) increases and also increases as distance (d) from the fulcrum increases: Torque has units of N m.**Torque: Example**A force of 84 N is used to turn a wrench of length 25 cm. What was the torque on the wrench?**Torque: Example**A force of 84 N is used to turn a wrench of length 25 cm. What was the torque on the wrench?**Torque: Example**A force of 84 N is used to turn a wrench of length 25 cm. What was the torque on the wrench?**Torque: Example**A force of 84 N is used to turn a wrench of length 25 cm. What was the torque on the wrench?**Torque: Example**A force of 84 N is used to turn a wrench of length 25 cm. What was the torque on the wrench?**Load torque and Effort torque**For any lever there are two torques: the load torque (TL) and the effort torque (TE): dL and dE are referred to as the load arm and effort arm, respectively.**Static Equilibrium**If the load torque equals the effort torque, the lever is in static equilibrium.**Static Equilibrium**If the load torque equals the effort torque, the lever is in static equilibrium.**Static Equilibrium: Example**What force does your bicep need to exert to hold a weight of 134 N (30 lbs)? Remember that the human forearm is a lever.**Static Equilibrium: Example**What force does your bicep need to exert to hold a weight of 134 N (30 lbs)? We will ignore the weight of the forearm itself.**Static Equilibrium: Example**What force does your bicep need to exert to hold a weight of 134 N (30 lbs)?**Static Equilibrium: Example**What force does your bicep need to exert to hold a weight of 134 N (30 lbs)? Or approximately 800 N**More Practice**Levers and Torque Lab Activity

More Related