PPT-An Introduction to Impulse and Momentum

Youre Quite Impulsive A Review of What We Know About Motion Chapters 2 amp 3 introduced us to vectors such as displacement velocity and acceleraton No mass was included Chapter 4 introduced forces and mass into the mix. Lots of fun!. Win . valuable prizes!. 1.The reason padded dashboards are used in cars is that they . look nice and feel good. . decrease the impulse in a collision. . increase the force of impact in a collision. . Linear Momentum. Momentum is a measure of how hard it is to stop or turn a moving object.. p. = m. v. (single particle). P . = . Σ. p. i . (system of particles). Problem:. How fast must an electron move to have the same momentum as a proton moving at 300 m/s?. Chapter 7. 7.1 The Impulse-Momentum Theorem. This section deals with time-varying forces affecting the motion of objects. . The effects of these forces will be discussed using the concepts of . i. mpulse and linear momentum.. Introduction to Momentum. What is Momentum?. The quantity of motion of a moving body. Depends on mass and velocity. Measured by multiplying mass to the velocity. Vector. Measured in kg*m/s or N*s. How is momentum measured?. Physics 7. th. edition. Classroom Response System Questions. Chapter 7 Impulse and Momentum. Interactive Lecture Questions. . 7.1.1. An astronaut drops a golf ball that is initially at rest from a cliff on the surface of the moon. The ball falls freely under the influence of gravity. Which one of the following statements is true concerning the ball as it falls? Neglect any frictional effects.. - Class . 14. Today:. Momentum and Impulse. Conservation of Momentum. Collisions, Explosions. Pre-class Reading Quiz. (Chapter. 9). Last day I asked at the end of class:. Consider . a car accident in which a car, initially traveling at 50 km/hr, collides with a large, massive bridge support.. Excerpts . from . Chapters 9 and 11. Impulse and Momentum. Newton’s . 2nd. Law of motion can be rewritten by using the definition of . acceleration. as the change in . velocity. over the change in time.. 9. Kinetics. 2. Projekt: Cizí . jazyky v . kinantropologii. - . CZ.1.07/2.2.00/15.0199. Daniel . Jandačka. , PhD.. Impulse of Force. Impulse of force . is the product of the resultant force . Σ. (Linear) Momentum, p. ● . is mass times velocity. . . vector. !. . ● . . (p) = kg m/s. ► . a 1 kg object moving at 1000 m/s has the same momentum as a 1000 kg object moving at 1 m/s (p = 1000 kg m/s). Momentum = Mass x Velocity. p. =. mv. The SI unit for momentum is . kg·m. /s. Momentum and velocity are in the same . direction. Is a vector. Using the equation. p=. mv. At the same velocity, as mass increases – momentum increases. Momentum = Mass x Velocity. p. =. mv. The SI unit for momentum is . kg·m. /s. Momentum and velocity are in the same . direction. Is a vector. Using the equation. p=. mv. At the same velocity, as mass increases – momentum increases. and . Collisions. Momentum. Impulse. Impulse-Momentum . theorem. Conservation of . linear momentum. Collisions. Momentum. , p. The linear momentum . p. of an object is the product of the object’s mass . What factors affected how fast objects move after a collision? (Think of your lab). Section 1: Momentum and . Impulse. Linear Momentum:. Momentum is defined as . mass times velocity. .. Momentum is represented by the symbol p, and is a . Momentum. Measures how hard it is to stop a moving object.. Momentum can be defined as . "mass in motion.". . All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion. .