Slide 1 Slide 2 Grade 8 Mechanical Systems Topic 1: Work Animation Slide 3 GRAVITY Gravity constantly exerts a downward force, seeking to crush us under our own weight. Slide…

1. 14.1 Work and Power The weight lifter applies a large force to hold the barbell over his head. Because the barbell is motionless, no work is done on the barbell. 2. 14.1…

Slide 1 14.1 Work and Power 14-1 cornell p. 412 What is work Calculating work What is power? Calculating power? James Watt and Horsepower. Slide 2 14.1 Work and Power The…

Slide 1 Energy Slide 2 A. W g is positive and W T is positive. B. W g is negative and W T is negative. C. W g is positive and W T is negative. D. W g and W T are both zero.…

UNEMPLOYMENT UNEMPLOYMENT MLS 2-C Morata Peñalosa Querubin Taburno Moreno Definition Unemployment means that scarce human resources are not being used to produce goods…

CHAPTER 14: WORK, POWER, AND MACHINES SECTION 14â1: WORK AND POWER OBJECTIVES Describe the conditions that must exist for a force to do work on an object. Calculate the…

Slide 1 S8P3. Students will investigate relationship between force, mass, and the motion of objects. c. Demonstrate the effect of simple machines (lever, inclined plane,…

What kinds of forces can we have in relativity? Instantaneous action at a distance? These are no good because instantaneous effects violate relativity No problem, we already…

PowerPoint Presentation Energy 1 Work Work is a transfer of energy In order to do work on an object, you must increase the energy within it Any type of energy can do work…

Name __________________________ Date ___________ Line ________ The science definition of work is very different from our normal definition of work. Two things must be true…