State the law of universal gravitation. Outline and examine how the force of gravitation varies directly by the product of the masses. Outline and discuss how the force varies inversely as the square of the distance. Introduce the universal gravitational constant 6.6X10^-11. Use the formula to determine the weight of the planet.

State the law of universal gravitation. Discuss that the product of the masses of two affects the gravitational attraction. Elicit that the force is directly proportional to the product of the two masses. Use examples to mathematically show how the force between two objects will differ by the square of the distance. Introduce the formula F is directly proportional to the product of the masses and inversely proportional to the distance squared. Rewrite the formula as F= G (M1M2) / D^2

Two labs given this lab period. One to illustrate the principle of conservation of energy using a pendulum... The second was to measure the potential and kinetic energy of the pendulum in order to see whether energy is conserved.

We compared free fall with a projectile. We Demonstrated that items of unequal mass fall freely at the same rate, disregarding air resistance. We saw a video of the monkey and hunter problem.

To illustrate the principle of conservation of energy with a pendulum. To demonstrate how kinetic energy is converted into potential energy and potential into kinetic. The resulting movements and measurements illustrate how energy is conserved.

Discuss the universality of the force of gravity. Introduce Newton's observations regarding inertia, constant motion, straight line motion, constant velocity and forces. Review that a force is required to cause acceleration. Discuss why the moon's movement and an apple falling are examples of acceleration. Elicit that the force causing the acceleration is gravity. Sketch and discuss the paths of a cannonball fired from a very high point on the Earth. Show that eventually, given sufficient velocity, the cannonball would orbit the Earth and land. Discuss tangential velocity and elicit a definition for gravity.

Discuss the force of gravity which is found universal. Introduce Newton's concept of inertia and motion, straight line morion , constant velocity and outside forces. Sketch the path the moon would take if gravity was absent. Sketch and discuss the pathways a cannonball would take if fired from a very high mountain on the Earth. Introduce the concept of tangential velocity, movement of planets around the Sun and introduce a definition for universal gravity

We will discuss the meaning of impulse and the meaning of momentum. We will demonstrate the meaning of the impulse-momentum theorem using examples. We will use of the theorem to discuss its application and use in games and in sports with equipment at the school.

Review the formulation for Kinetic energy and how mass and velocity will affect the kinetic energy which a substance possesses. Review how work and kinetic energy are related by force, mass, velocity, and distance moved. Discuss net force as force-friction. Elicit that in order for wok to be done, a force must act one a distance. Even by applying a force to an object, if their is no movement, the work is zero ( and the kinetic energy is zero)

Review definition of kinetic energy. Discuss formula as KE= 1/2 MV2.. Review that work is fxd and work is done to counter kinetic energy. Discuss work = kinetic energy, and therefore fd=/12mv2. Discuss that when work is done, kinetic energy changes... Introduce force-force of friction x distance kinetic energy. Determine that an object moving at constant speed, just overcoming the force of friction, exhibits a net force of zero and KE or zero.