Want to know the secret to the Force… Youngling, younglings gather round… Use equations you must KL physics2011.

Slides:

Advertisements

Similar presentations

AP Physics Mr. Jean April 27th, 2012.

Advertisements

Equilibrium An object is in “Equilibrium” when:

The easiest lever to analyze is the first class lever (seesaw), that is balanced by itself. The center of gravity of the lever is on the fulcrum. cg.

Torque Torque is defined as the tendency to produce a change in rotational motion.

Torque Chapter 8 Section 1.

1. A motorcycle plus rider has a mass of 1000 kg. They travel inside a loop with a radius of 6 m. At the lowest point, the speed is 20 m/s. What force.

Torque: Rotational Statics and Rotational Dynamics Honors Physics.

It will accelerate in a spin!

Torque and Rotation Physics.

Houston…we have a problem 1) You learned that if you push on a door far away from it’s hinges (the axis of.

Centripetal Acceleration. Acceleration in a circular path at constant speed a c =(v t 2 )/r Centripetal acceleration=(tangential speed) 2 /radius of circular.

For this review, answer each question then continue to the next page for the correct answer.

Torque. Tough Nut  Which of the four arrangements is best for tightening a bolt? ABCD.

Chapter 9: Torque and Rotation

Torque. A Comparison Which of the following do you think is easier to hold in place? 1 m 1 kg 1 m 1 kg hand Why would one be easier than the other? They.

Torque, & Rotational Equilibrium

Torque Rotational Motion. Torque  Forces that cause objects to rotate  Two Characteristics that contribute to the effectiveness of torque: Magnitude.

DETERMINATION OF TORQUE

Torque and Center of Mass

AP Physics Torque.

Rotational Motion. Difference between torque and force If you want to make an object move, apply a force If you want to make an object rotate, apply a.

Warm Up Ch. 9 & 10 1.What is the relationship between period and frequency? (define and include formulas) 2.If an object rotates at 0.5 Hz. What is the.

11/1 Rotation, Torque  Begin Rotational Dynamics Read Ch 9 sec 1-3  Suggested problems from Ch 7 22, 35, 36, 37, 53, 55  HW: 11/1 HW Handout “Extended.

Ch. 11 Rotational Mechanics Torque. TORQUE n Produced when a force is applied with leverage. n Force produces acceleration. n Torque produces rotation.

Rotational Mechanics.

Causing Rotational Motion In order to make an object start rotating about an axis, a force is required However, not only the amount of force applied but.

Torque Torque is an influence which tends to change the rotational motion of an object. One way to quantify a torque is Torque = Force applied x lever.

 Point at which all other points on the object rotate around  During motion the CM will move in the same path that a simple particle would move if subjected.

Chapter 4 : statics 4-1 Torque Torque, , is the tendency of a force to rotate an object about some axis is an action that causes objects to rotate. Torque.

Torque. Tough Nut  Which of the four arrangements is best for tightening a bolt? ABCD.

Objectives  Know the definition of torque  Know that torque is directly proportional to the magnitude of the force and the perpendicular distance.

Chapter 8 Rotational Motion.

A Balancing Act. When is an object in Equilibrium? When its state of motion is not changing What are the conditions for Equilibrium? 1) the net force.

Torque and Rotation Physics. Torque Force is the action that creates changes in linear motion. For rotational motion, the same force can cause very different.

Torque Give me a lever long enough and a fulcrum on which to place it, and I shall move the world. -Archimedes.

Motion and Forces in 2 and 3 Dimensions Torque and Rotation.

Torque Rotational Dynamics. There are 3 types of motion Translational Rotational Vibrational.

TORQUE Tor-ck. TORQUE Have you? Opened a door Turned a faucet Tightened a bolt with a wrench? You applied torque to an object.

8.2 Rotational Dynamics How do you get a ruler to spin on the end of a pencil? Apply a force perpendicular to the ruler. The ruler is the lever arm How.

1 Rotational Motion. Circular Motion An object moving in a circle at a constant speed is accelerated Centripetal acceleration depends upon the object’s.

Chapter 7-8 Pretest.

Chapter 8 Rotational Motion

Bellringer: What would be the net acceleration of a 15 g toy car down a 30 degree incline if the acceleration due to friction is 1.8 m/s 2 ? Include a.

Chapter 9 Rotational Dynamics

Torque 10.3 (pages 490 – 502). Friday Fun… Unravelled What did you learn? What does it mean to balance? –For an object to balance, you must use the centre.

Torque  If an unbalanced force acts on an object at rest, and: 1)the force does not act along the center of mass of the object, 2)the object is fixed.

1/15/16Oregon State University PH 212, Class 61 Here are some of the direct analogies between (linear) translational and rotational motion: Quantity or.

Rotational Motion AP Physics C. Definitions and Formulas.

Torque ► Consider force required to open door. Is it easier to open the door by pushing/pulling away from hinge or close to hinge? close to hinge away.

Rotational Motion.

L-10 torque and rotational inertia

L-10(M-9) torque and rotational inertia

L-10 torque and rotational inertia

Torque and Levers Lesson 5.

Rotational Inertia and Torque

Objectives Calculate the torque created by a force.

L-10 torque and rotational inertia

Physics 8.2A Sample problems

Bell Work: Centripetal Motion

Collisions at an Angle The total momentum of the two football players prior to the collision is the vector sum of their individual momentums. The larger.

Torque and Levers Lesson 5.

Tor-que? Statics II.

Torque Rotational analogue of Force Must contain Use door example

Machines Levers & Torque.

Presentation transcript:

Want to know the secret to the Force… Youngling, younglings gather round… Use equations you must KL physics2011

Equations we will use Also the idea that Net force = the sum of all of the forces acting on the object

Units to know QuantitySymbolUnit ForceNewton (N) MassmKilogram (kg) Accelerationm/s 2 TorqueτNewton meter (Nm) Lever armrMeter (m)

Example 1 – Finding Mass What is the mass of a 650 N dog?

Example 2 – Finding Net Force A rocket engine applies an upward force of 500 N to a small rocket. The rocket has a mass of 35 kg. Find the net force on the rocket.

Example 3 – Finding acceleration A rocket engine applies an upward force of 500 N to a small rocket. The rocket has a mass of 35 kg. Find the acceleration of the rocket.

Whoa there Yoda…What’s Torque Not every force moves in a straight line, think about using a wrench or opening a door. Torque is the effect of a force applied on an object that causes rotation.

Whoa there Yoda…What’s Torque Torque is the effect of a force applied on an object that causes rotation. Lever arm r Fulcrum – center of rotation Lever arm – distance from fulcrum to the point the force is applied Direction of rotation – clockwise (cw) or counter –clockwise (ccw)

Whoa there Yoda…What’s Torque Torque is the effect of a force applied on an object that causes rotation. Lever arm r

Whoa there Yoda…What’s Torque The amount of the force and the distance from the axis of rotation determine the torque.

Example 4 – Finding Torque How much force will a technician need to tighten a bolt to 100 Nm if the longest wrench he can find is 0.2m long?

Use the force… Armed you are now… Practice you must… Prepare yourself young Jedi. Yes…you will be tested!