Chapter 7 Powerpoint

Chapter Presentation Transparencies Sample Problems Visual Concepts Standardized Test Prep Resources

Table of Contents ,[object Object],[object Object],[object Object],[object Object],Circular Motion and Gravitation Chapter 7

Objectives ,[object Object],[object Object],[object Object],Chapter 7 Section 1 Circular Motion

Centripetal Acceleration Chapter 7 Section 1 Circular Motion

Centripetal Acceleration ,[object Object],[object Object],Chapter 7 Section 1 Circular Motion

Centripetal Acceleration, continued ,[object Object],Chapter 7 Section 1 Circular Motion

Centripetal Force ,[object Object],Chapter 7 ,[object Object],[object Object],Section 1 Circular Motion

Centripetal Force, continued ,[object Object],Chapter 7 Section 1 Circular Motion

Centripetal Force, continued Chapter 7 ,[object Object],Section 1 Circular Motion

Describing a Rotating System Chapter 7 ,[object Object],[object Object],[object Object],Section 1 Circular Motion

Describing a Rotating System, continued Chapter 7 Section 1 Circular Motion ,[object Object],[object Object],[object Object]

Objectives ,[object Object],[object Object],Section 2 Newton’s Law of Universal Gravitation Chapter 7

Gravitational Force, continued ,[object Object],[object Object],[object Object],Chapter 7 Section 2 Newton’s Law of Universal Gravitation

Gravitational Force, continued Chapter 7 Section 2 Newton’s Law of Universal Gravitation ,[object Object]

Newton’s Law of Universal Gravitation Chapter 7 Section 2 Newton’s Law of Universal Gravitation

Applying the Law of Gravitation ,[object Object],[object Object],[object Object],Chapter 7 Section 2 Newton’s Law of Universal Gravitation

Weight and Weightlessness Chapter 7 Section 3 Motion in Space

Objectives ,[object Object],[object Object],[object Object],[object Object],Section 4 Torque and Simple Machines Chapter 7

The Magnitude of a Torque ,[object Object],[object Object],[object Object],[object Object],Section 4 Torque and Simple Machines Chapter 7

The Magnitude of a Torque, continued ,[object Object],[object Object],Section 4 Torque and Simple Machines Chapter 7

Torque Chapter 7 Section 4 Torque and Simple Machines

The Sign of a Torque ,[object Object],Section 4 Torque and Simple Machines Chapter 7

The Sign of a Torque Chapter 7 Section 4 Torque and Simple Machines

Sample Problem ,[object Object],[object Object],Chapter 7 Section 4 Torque and Simple Machines

Sample Problem, continued ,[object Object],[object Object],[object Object],[object Object],Chapter 7 Section 4 Torque and Simple Machines Diagram: Unknown:  net = ?

Sample Problem, continued ,[object Object],[object Object],Chapter 7 Section 4 Torque and Simple Machines Tip: The factor sin  is not included in the torque equation because each given distance is the perpendicular distance from the axis of rotation to a line drawn along the direction of the force. In other words, each given distance is the lever arm.  = Fd  net =  1 +  2 = F 1 d 1 + F 2 d 2

Sample Problem, continued ,[object Object],[object Object],Chapter 7 Section 4 Torque and Simple Machines ,[object Object],[object Object],  1 = F 1 d 1 = (15 N)(0.14 m) = 2.1 N•m  2 = F 2 d 2 = (–11 N)(0.070 m) = –0.77 N•m  net =  1 +  2 = 2.1 N•m – 0.77 N•m  net = 1.33 N•m

Simple Machines ,[object Object],[object Object],Section 4 Torque and Simple Machines Chapter 7

Simple Machines Chapter 7 Section 4 Torque and Simple Machines

Simple Machines, continued Section 4 Torque and Simple Machines Chapter 7 The diagrams show two examples of a trunk being loaded onto a truck. ,[object Object],[object Object]

Simple Machines, continued ,[object Object],[object Object],[object Object],Section 4 Torque and Simple Machines Chapter 7 ,[object Object],[object Object]

Mechanical Efficiency Chapter 7 Section 4 Torque and Simple Machines

Multiple Choice ,[object Object],[object Object],[object Object],[object Object],[object Object],Standardized Test Prep Chapter 7

Multiple Choice, continued ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Standardized Test Prep Chapter 7

Multiple Choice, continued ,[object Object],[object Object],[object Object],[object Object],[object Object],Standardized Test Prep Chapter 7

Multiple Choice, continued ,[object Object],[object Object],Standardized Test Prep Chapter 7 8. The three forces acting on the wheel have equal magnitudes. Which force will produce the greatest torque on the wheel? F. F 1 G. F 2 H. F 3 J. Each force will produce the same torque.

Multiple Choice, continued ,[object Object],[object Object],Standardized Test Prep Chapter 7 9. If each force is 6.0 N, the angle between F 1 and F 2 is 60.0°, and the radius of the wheel is 1.0 m, what is the resultant torque on the wheel? A. –18 N•m C. 9.0 N•m B. –9.0 N•m D. 18 N•m

Multiple Choice, continued ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Standardized Test Prep Chapter 7

Short Response ,[object Object],Standardized Test Prep Chapter 7

Short Response ,[object Object],Standardized Test Prep Chapter 7 Answer: The water remains in the pail even when the pail is upside down because the water tends to move in a straight path due to inertia.

Short Response, continued ,[object Object],Standardized Test Prep Chapter 7

Short Response, continued ,[object Object],[object Object],Standardized Test Prep Chapter 7

Extended Response ,[object Object],Standardized Test Prep Chapter 7

Extended Response ,[object Object],Standardized Test Prep Chapter 7 Answer: 687 days

Centripetal Force Chapter 7 Section 1 Circular Motion

Kepler’s Laws Chapter 7 Section 3 Motion in Space

The Magnitude of a Torque Section 4 Torque and Simple Machines Chapter 7

Simple Machines Section 4 Torque and Simple Machines Chapter 7

Chapter 7 Powerpoint

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Chapter 7 Powerpoint