Newton`s Laws
... The acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object. ...
... The acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object. ...
universalgravitation
... Weight = GMm/r2 Using: G = 6.67 x 10-11 N-m2/kg2 and M = 5.98 x 1024 kg Weight = 165 N What is the astronaut’s apparent weight? The astronaut is in uniform circular motion about Earth. The net force on the astronaut is the gravitational force. The normal force is 0. The astronaut’s apparent weight i ...
... Weight = GMm/r2 Using: G = 6.67 x 10-11 N-m2/kg2 and M = 5.98 x 1024 kg Weight = 165 N What is the astronaut’s apparent weight? The astronaut is in uniform circular motion about Earth. The net force on the astronaut is the gravitational force. The normal force is 0. The astronaut’s apparent weight i ...
Gravity
... Weight = GMm/r2 Using: G = 6.67 x 10-11 N-m2/kg2 and M = 5.98 x 1024 kg Weight = 165 N What is the astronaut’s apparent weight? The astronaut is in uniform circular motion about Earth. The net force on the astronaut is the gravitational force. The normal force is 0. The astronaut’s apparent weight i ...
... Weight = GMm/r2 Using: G = 6.67 x 10-11 N-m2/kg2 and M = 5.98 x 1024 kg Weight = 165 N What is the astronaut’s apparent weight? The astronaut is in uniform circular motion about Earth. The net force on the astronaut is the gravitational force. The normal force is 0. The astronaut’s apparent weight i ...
1020 Test review
... On earth’s surface, weight/mass = 9.8 newtons/kilogram – is the same for all balls (or other objects) – is called “acceleration due to gravity” ...
... On earth’s surface, weight/mass = 9.8 newtons/kilogram – is the same for all balls (or other objects) – is called “acceleration due to gravity” ...
Lecture 16 - Circular Motion
... Newton knew that at the surface of the earth bodies (apples) fall 5 m in the first second, and that this acceleration is due to earth’s gravity. He showed that the gravity force is the same as if all earth’s mass were at its center, 4000 mi from the surface. (This required inventing Calculus). He wo ...
... Newton knew that at the surface of the earth bodies (apples) fall 5 m in the first second, and that this acceleration is due to earth’s gravity. He showed that the gravity force is the same as if all earth’s mass were at its center, 4000 mi from the surface. (This required inventing Calculus). He wo ...
Name_________________Date___________Period_____ Num
... Directions: Use your notes and worksheets to help you answer the questions. Also, be sure to study all Unit 7 vocabulary words. 7-1 Measuring Motion 1. Give an example of a reference point and explain why it is a reference point. ...
... Directions: Use your notes and worksheets to help you answer the questions. Also, be sure to study all Unit 7 vocabulary words. 7-1 Measuring Motion 1. Give an example of a reference point and explain why it is a reference point. ...
Section 1
... because a heavier mass is intrinsically more difficult to accelerate than a lighter mass. The result is that no matter what the mass is, the resulting accelerations in free-fall are equal. Newton's Law of Universal Gravitation: Suppose you were to perform experiments to determine the acceleration du ...
... because a heavier mass is intrinsically more difficult to accelerate than a lighter mass. The result is that no matter what the mass is, the resulting accelerations in free-fall are equal. Newton's Law of Universal Gravitation: Suppose you were to perform experiments to determine the acceleration du ...
... 3.3 types of forces Newton’s Second law Reaction forces does not appear since it acts on There are four fundamental forces in the “The acceleration a of an object is directly a different object. nature, but we will discuss the fundamental proportional to the net force acting on it and Drawing a free ...
Pretest Forces
... ______ 3. Which of the following factors affects how easily a moving object can be stopped? a. the object’s mass c. the object’s volume b. the object’s speed d. both (a) and (b) 4. A rock and an apple that is lighter than the rock are dropped from the same height at the same time. Which will reach t ...
... ______ 3. Which of the following factors affects how easily a moving object can be stopped? a. the object’s mass c. the object’s volume b. the object’s speed d. both (a) and (b) 4. A rock and an apple that is lighter than the rock are dropped from the same height at the same time. Which will reach t ...
Forces Physical Science Chapter 2
... Fig 1 - shows the magnitude & direction of the 2 vectors we are adding Fig 2 – we move the beginning of vector B to the end of Vector A, making sure to keep the magnitude & direction exactly the same Fig 3 – Connect the beginning of Vector A to the end of Vector B, this is your “Resultant” C. ...
... Fig 1 - shows the magnitude & direction of the 2 vectors we are adding Fig 2 – we move the beginning of vector B to the end of Vector A, making sure to keep the magnitude & direction exactly the same Fig 3 – Connect the beginning of Vector A to the end of Vector B, this is your “Resultant” C. ...
Unit_4_files/Laws of Motion Notes
... For every action there is an equal and opposite re-action. This means that for every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard. ...
... For every action there is an equal and opposite re-action. This means that for every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard. ...
Newton`s Laws - strikerphysics11
... remains at rest and a body in motion remains in motion with a constant velocity. Inertia – the tendency of objects to resist changes in motion ...
... remains at rest and a body in motion remains in motion with a constant velocity. Inertia – the tendency of objects to resist changes in motion ...
Weight
In science and engineering, the weight of an object is usually taken to be the force on the object due to gravity. Weight is a vector whose magnitude (a scalar quantity), often denoted by an italic letter W, is the product of the mass m of the object and the magnitude of the local gravitational acceleration g; thus: W = mg. The unit of measurement for weight is that of force, which in the International System of Units (SI) is the newton. For example, an object with a mass of one kilogram has a weight of about 9.8 newtons on the surface of the Earth, and about one-sixth as much on the Moon. In this sense of weight, a body can be weightless only if it is far away (in principle infinitely far away) from any other mass. Although weight and mass are scientifically distinct quantities, the terms are often confused with each other in everyday use.There is also a rival tradition within Newtonian physics and engineering which sees weight as that which is measured when one uses scales. There the weight is a measure of the magnitude of the reaction force exerted on a body. Typically, in measuring an object's weight, the object is placed on scales at rest with respect to the earth, but the definition can be extended to other states of motion. Thus, in a state of free fall, the weight would be zero. In this second sense of weight, terrestrial objects can be weightless. Ignoring air resistance, the famous apple falling from the tree, on its way to meet the ground near Isaac Newton, is weightless.Further complications in elucidating the various concepts of weight have to do with the theory of relativity according to which gravity is modelled as a consequence of the curvature of spacetime. In the teaching community, a considerable debate has existed for over half a century on how to define weight for their students. The current situation is that a multiple set of concepts co-exist and find use in their various contexts.