
NCEA Level 2 Physics (91171) 2012 Assessment Schedule
... At the lowest point of her swing, the unbalanced force, the centripetal force, is the difference between the tension force acting upwards and the gravity force acting vertically down. It is this unbalanced force that causes her to move in a circle. E7 1a + 2e ...
... At the lowest point of her swing, the unbalanced force, the centripetal force, is the difference between the tension force acting upwards and the gravity force acting vertically down. It is this unbalanced force that causes her to move in a circle. E7 1a + 2e ...
Raising and Lowering
... velocity. Draw a motion diagram for the box. Is the net force on the box, up, down or zero? Draw a force diagram for the box. Acceleration is negative, e.g. velocity might change from +10 to +5, a change of -5. The net force = mass x acceleration which is downwards since acceleration is ...
... velocity. Draw a motion diagram for the box. Is the net force on the box, up, down or zero? Draw a force diagram for the box. Acceleration is negative, e.g. velocity might change from +10 to +5, a change of -5. The net force = mass x acceleration which is downwards since acceleration is ...
AP Physics – Newton`s Laws – Force and Motion Types of Forces
... accelerating, within which to analyze your system. 3. Identify all forces acting on the system. Ignore the others. This is best done by drawing a Free Body Diagram! 4. Set up F = ma equations for each dimension. Solve for relevant unknowns. 5. Use kinematics or calculus where necessary to calculate ...
... accelerating, within which to analyze your system. 3. Identify all forces acting on the system. Ignore the others. This is best done by drawing a Free Body Diagram! 4. Set up F = ma equations for each dimension. Solve for relevant unknowns. 5. Use kinematics or calculus where necessary to calculate ...
Unit B Assignment
... 1. Galileo Galilee (1564 - 1642), Sir Isaac Newton (1643 - 1727) and Henry Cavendish (1731 – 1810) all played an important role in the development of gravitational theory. In three paragraphs, explain the contribution each physicist had on our current understanding of gravity. (6 marks) 2. Show how ...
... 1. Galileo Galilee (1564 - 1642), Sir Isaac Newton (1643 - 1727) and Henry Cavendish (1731 – 1810) all played an important role in the development of gravitational theory. In three paragraphs, explain the contribution each physicist had on our current understanding of gravity. (6 marks) 2. Show how ...
Relationship Between Impulse and Momentum - McGraw
... Newton combined an object's mass and velocity in an expression which he called “quantity of motion.” We now define this product of mass and velocity as momentum. From Newton's second law we see that an object's velocity changes when it is acted upon by an unbalanced force. This would also mean then ...
... Newton combined an object's mass and velocity in an expression which he called “quantity of motion.” We now define this product of mass and velocity as momentum. From Newton's second law we see that an object's velocity changes when it is acted upon by an unbalanced force. This would also mean then ...
Inclined Planes, and Pulleys
... QuickTi me™ and a decompressor are needed to see thi s pi ctur e. ...
... QuickTi me™ and a decompressor are needed to see thi s pi ctur e. ...
Lect9
... A sky diver jumps out of an airplane at 5000m altitude. She reaches terminal speed (due to the drag of the air) after about six seconds. If a box of steel parts that has the same weight as the diver is dropped simultaneously, the box will fall: faster than the diver slower than the diver the same as ...
... A sky diver jumps out of an airplane at 5000m altitude. She reaches terminal speed (due to the drag of the air) after about six seconds. If a box of steel parts that has the same weight as the diver is dropped simultaneously, the box will fall: faster than the diver slower than the diver the same as ...
File
... •It contains ALL the forces that act ON the object. •Every force is identified with a label and direction. ...
... •It contains ALL the forces that act ON the object. •Every force is identified with a label and direction. ...
Free fall

In Newtonian physics, free fall is any motion of a body where its weight is the only force acting upon it. In the context of general relativity, where gravitation is reduced to a space-time curvature, a body in free fall has no force acting on it and it moves along a geodesic. The present article only concerns itself with free fall in the Newtonian domain.An object in the technical sense of free fall may not necessarily be falling down in the usual sense of the term. An object moving upwards would not normally be considered to be falling, but if it is subject to the force of gravity only, it is said to be in free fall. The moon is thus in free fall.In a uniform gravitational field, in the absence of any other forces, gravitation acts on each part of the body equally and this is weightlessness, a condition that also occurs when the gravitational field is zero (such as when far away from any gravitating body). A body in free fall experiences ""0 g"".The term ""free fall"" is often used more loosely than in the strict sense defined above. Thus, falling through an atmosphere without a deployed parachute, or lifting device, is also often referred to as free fall. The aerodynamic drag forces in such situations prevent them from producing full weightlessness, and thus a skydiver's ""free fall"" after reaching terminal velocity produces the sensation of the body's weight being supported on a cushion of air.