PPT-Forces, Momentum, & Gravity

Chapter 3 In chapter 2 we studied motion but not its cause In this chapter we will look at both force and motion the cause and effect We will consider Newtons Newtons three laws of motion. Universal gravitational constant G667 x 10 11 Nm kg 2 2 EPS 122 Lecture 14 Gravity and isostasy Theory of gravity Gravitational potential Definition The gravitational potential V due to a point mass m at a distance r from m is the work done by th Gravity Pilates Tina Gravity Danielle MIND STUDIO MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY 8:00 Spartacus Boot Camp Rick 9:30 Barre Marla/Danielle Fusion (L1-2) Naomi Hatha 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.. An object of mass . m. traveling at velocity has a linear . momentum. (or just momentum), , given by . Units have no special name: kg-m/s. With no net force on a particle, its momentum is constant (Newton #1), but any force will change its momentum. is a pull or a push.. Force. The unit of measure for force is . Newton (N). . . . . English scientist.. . (1643 – 1727) . (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. – tendency of objects to keep going in the same direction with the same speed. Depends on mass and velocity. Has direction. The momentum of a ball depends on its mass and velocity. Ball B has more momentum than ball A. 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 . 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?. What is Momentum? Momentum may be defined by its equation: Momentum is a quantity defined as the product of the mass and velocity of an object. Unit of Momentum The equation illustrates that momentum is directly proportional to an object’s mass and the object’s velocity. Chapter 4. 4-1 Accelerated Motion. Newton’s Second Law of Motion:. Definition: . A net force acting on an object causes the object to accelerate in the direction of the force.. The magnitude of acceleration is affected by the size of the force and the mass of the object. Forces & Gravity. Notes. Write down the words in yellow.. The words in white are discussion points, you may write these down, but are not required.. Gravity. Gravity is a . force. that pulls objects toward each other..