PPT-Motion, Force, and Speed!

Coach Dave Edinger J C Booth Middle School Physical Science 8A Motion An object is in motion if its distance from another object is changing A reference point is a place or object used to determine if something is in motion. What Is Motion?. Motion. is when an object changes place or position. To properly describe motion, you need to use the following:. Start and end position?. Movement relative to what?. How far did it go?. Circular motion. We will be looking at a special case of kinematics and dynamics of objects in uniform circular motion (constant speed). Cars on a circular track (or on a curved road). Roller coasters in loop. express angular displacement in radians. . understand and use the concept of angular velocity to solve problems. . recall and use . v = r. ω. to solve problems. . describe qualitatively motion in a curved path due to a perpendicular force, and understand the centripetal acceleration in the case of uniform motion in a circle. . - Class . 13. Today:. Dynamics . in Two Dimensions. . Dynamics of Uniform. Circular Motion. Fictitious. Forces. Pre-class Reading Quiz. (Chapter. 8). Last day I asked at the end of class:. A ball is whirled on a string in a vertical circle. As it is going around, the tension in the string is. Interaction forces. Forces arise from an interaction between two objects. They come up in pairs. Each force in an interaction pair acts on a different object. The forces are equal in size and opposite in direction. What Is Motion?. Motion. is when an object changes place or position. To properly describe motion, you need to use the following:. Start and end position?. Movement relative to what?. How far did it go?. Calculate angular speed in radians per second.. Calculate linear speed from angular speed and vice-versa.. Describe and calculate centripetal forces and accelerations. .. Motion . in Circles. We say an object . U2L2. 2. Lesson 2 Key Question. Example: Consider giving a low-friction cart a quick shove along a track.. When an object is moving, does this mean there must be a force pushing it in the direction of its motion?. What is motion?. Motion . is . when an object changes its . position. .. Motion . can be represented mathematically through calculations of . speed, velocity, and . acceleration. Motion is . when an object changes its position. Using 9 boxes, create a comic strip that explains the relationship between force and motion. The comic strip must include the following: . Creative. dialogue. between 2 characters (of your choice) that includes the following vocabulary: . Ryan Cates. University of South Florida. Big Idea 11: . Energy . Transfer and Transformation. Vocabulary Review. What is a force?. Why do weights differ on other planets?. What is the difference between mass and weight?. Science Question of the Day . What causes the noise when you crack your joints?. Gravity . Gravity is a specific kind of force.. A force is simply the push or a pull on an object.. Can you think of some examples of pushes and pulls on objects?. Forces and Motion Chapters 11-12 Frame of reference A system of objects that are not moving with respect to one another To describe motion accurately and completely, a frame of reference is necessary. Force and Motion Basketball Review Game Game Rules If your team gets the question right, you get a chance to shoot the ball into the hoop. If you get the ball in the hoop, each person on your team wins a piece of candy.