PPT-Chapter 12: Forces and Fluids

What is pressure Pressure is the force per unit area that is applied on the surface of an object Chapter 12 Forces and Fluids Calculating pressure Pressure increases if the force applied increases and decreases if the area of contact increases. And 57375en 57375ere Were None meets the standard for Range of Reading and Level of Text Complexity for grade 8 Its structure pacing and universal appeal make it an appropriate reading choice for reluctant readers 57375e book also o57373ers students A . force. is a push or a pull. .. Many different forces act on objects around us all the time.. . If . the forces on the object are . balanced. , . then the object doesn’t move. . When two or more forces are acting on an object and they are not equal in size, we say the forces are . Here’s Tim & Mobey on Force. Brainpop. Suppose I asked you to move a heavy desk in the classroom. How would you move it? . hmmmmmmmmmmm...... You might get on one side of the desk and start pushing, Or you might grab the legs and start pulling. . 11.1: Forces change motion. 11.2: Force and mass determine acceleration. 11.3 Forces act in pairs. 11.4 Forces transfer momentum. Warm-up Questions (T or F). Speed includes direction, while velocity does not. Newton’s Laws. Isaac Newton. The man, myth, the legend…while you spend your time on Facebook, Newton spent his studying the behavior of objects in MOTION.. His conclusion…anything in motion is going to follow 1 of the 3 basic . Fluids. A fluid is anything that flows: liquids and gases. One . common characteristic is that fluids have no fixed shape and are easily . deformed: . t. ake the shape of their containers.. Density. The density of a substance is the quantity of matter contained in a unit volume of the substance. . Forces. Forces can be thought of as pushes and pulls. Examples. You exert a force on a door to open it (a push). Gravity exerts a force on you which holds you to the surface of the earth (a pull). Forces. Pages 66 – 84 in textbook.. A substance that has the capacity to flow and assume the form of the container into which it has been poured.. What is a fluid?. Water, milk, blood and saliva. Gases are also considered fluids: air, helium and ozone.. Define . forces and different types of forces (push or pull). Measuring . forces in Newtons. Balanced . vs unbalanced forces. Inertia- . what is it and how does it apply to Newton’s first law of motion.. Viscosity is how engineers measure the resistance of fluids when being . deformed:. τ. = . μ. (du/dy. ). The less viscous the fluid, the greater its ease of . movement.. Viscosity is useful for calculating the force needed to move a fluid. For example, in these industries: . Science Question of the Day . What causes the noise when you crack your joints?. _________________________________. _________________________________. _________________________________. Gravity . Gravity is a specific kind of _____________.. Experiment associated with Blaise Pascal. A long thin tube placed into a barrel. Water . is poured in the top that increases the . Hydrostatic Pressure based on elevation. and causes the barrel to burst. . To Differentiate between osmosis, diffusion, filtration and active transport.. To describe the role of kidneys, lungs and endocrine glands in regulating the body’s fluid composition and volume.. To describe the cause, clinical manifestations and . By Bamlaku Enawgaw. Objectives. At the end of this chapter, students will be able to:. Define terms related to body fluids. Identify different types of body fluids. Define CSF. Define Serous fluids: pleural, pericardial, peritoneal (.