1. Look at this picture, what kind of action is she using? Do Now- 1. Look at this picture, what kind of action is she using? 2. The woman is exerting a force. What does exertion mean? 3. Are you exerting a force when you: a. use a pencil to write with? b. stand up? 10.2

She is using a force. A force is a push or a pull. Do Now- 1. Look at this picture, what kind of action is she using? 2. The woman is exerting a force. What does exertion mean? She is using a force. A force is a push or a pull. Exertion means to make an effort on something you do. Highlight vocab words….force, exert

3. Are you exerting a force when you: a. use a pencil to write with? b. stand up? yes yes

Video Do Now. Write the questions and watch the short video clip for your answer. 1. How is the bunny exerting force as he chases the cat? 2. How much force is the cat exerting as she tries to fit in the box? 10.5

1. How is the bunny exerting force as he chases the cat? He pushes his feet off the ground.

2. How much force is the cat exerting? The force she is exerting to pull and push on the box is equal to her weight.

Do Now 1. In a free body diagram, a square represents a person or an ___ that is exerting the force . 2. Up to a maximum of four forces which are represented by ___ , can exert force on the same object. 3. Each square must be labeled and also each arrow must be labeled a specific direction and ___ . object arrows Draw the free body diagram on the board, 10.6 force

gravity and forces http://www. neok12. com/php/watch. php

Magnetic force http://www. neok12. com/php/watch. php If time show video clip

Notes- Forces 1. A force is a ____ or a pull on a person or an ___ 2 Notes- Forces 1. A force is a ____ or a pull on a person or an ___ 2. There are ___ types of forces: ___ forces and ________ forces. push object two contact long range

1. A person or an action which directly _______ or pulls on a system. Example: A man tugs down on his tie. Applied Force pushes

2. It is the _______ force that is in contact with another _______ object. Example: The teacher is standing. support Normal Force stable

It is force exerted or ____ by a ______ as an object moves across it. 3. It is force exerted or ____ by a ______ as an object moves across it. Example: A player slides to home plate. Frictional Force used surface -two properties: -it must create heat -it must slow the object down

Do Now- Look at the forces on the front page of yesterday’s handout, “Contact and Long Range Forces”. 1. Identify the force. You slide your journal from side to side. 2. Draw a free body diagram. A golfer swings his club and hits the ball on the left field.

A bird flaps his wings to fly up. force 4. it is the _____ observed to oppose the _______ of an object that travels through the ___. Example: A bird flaps his wings to fly up. force Air Resistance Force motion air End here for worksheet “Forces-FBD”

5. The force from a __________ etc, when it is pulled tight by forces acting from ________ ends. Example: The phone pole on the left is attached to a cable that is anchored to the ground. Tensile Force aka Tension cable, string, opposite

6. The force that comes from a ___________ or stretched spring where the object is ___________ to. Example: A slingshot is used to shoot the lighted ceiling. compressed Spring Force attached

7. The _________ Force on an object produced by the surrounding ___________. Examples: Cheerios in milk upward Buoyant Force fluid

X Types of Long Range Forces 8. The force of an ____________ or repulsive interaction betw any two ___________ Particles. X Electrical Force attractive No FBD charged

X magnetic 9. A ___________ field exerts a force on a single moving ___________. X Magnetic Force charge No FBD

10. It is the ____________ that the Earth has to pull down to its center. Example: The bouncing ball drops down to the floor. force Gravitational Force

Forces- Free Body Diagram 8. Tension force 9. applied, friction 10 Forces- Free Body Diagram 8. Tension force 9. applied, friction 10. normal, friction, and applied 11. one force

Do Now Draw a free body diagram: 1. An egg is dropped from its nest. 2 Do Now Draw a free body diagram: 1. An egg is dropped from its nest. 2. A grocery bag rests on a table. (slide 6) 3. A hockey puck is gliding to the left and slowing down. (slide 17) 4. A horse pulls a sleigh to the right. (slide 10)

#1 An egg is dropped from its nest. F air egg Object where it is being exerted or it exerts the force Fgrav

#2 A grocery bag rests on a table. (slide 6) F norm bag F grav

#3 A hockey puck is gliding to the left and slowing down. (slide 17) F norm Hockey puck F frict F grav

#4 A horse pulls a sleigh to the right. (slide 10) F norm sleigh F app F frict F grav

http://www. wisc-online. com/Objects/ViewObject. aspx http://www.wisc-online.com/Objects/ViewObject.aspx?ID=TP1502 here is the link for animated slides.

Do Now Draw a free body diagram by watching the video: 1 Do Now Draw a free body diagram by watching the video: 1. a dog is walked by her owner on my right side 2. a skier goes downhill to my left 3. people paddling west on a river

1. a dog is walked by her owner on my right side

F norm dog F frict F app or Ftens F grav

2. A skier goes downhill to my left

2. Skiing downhill F norm skier F frict or F air F app F grav

3. People paddling west on a river

3. People paddling west on a river F buoy raft F air F app F grav

Do Now Write a free body diagram for the magazine clippings. 1 Do Now Write a free body diagram for the magazine clippings. 1. Two girls riding to the left. 2. A man surfing to the east.

1. Two girls riding to the left. F norm bike F air or F frict F app F grav

2. A man surfing to the east. If he was kite flying… F tens F buoy surfer F app F air or F frict F grav

Do Now- 1. Draw a Free Body Diagram of this magazine clipping Do Now- 1. Draw a Free Body Diagram of this magazine clipping. Explain which forces you choose. L- applied (infer he is moving left side), R- tens, T- norm, B- grav

bicyclists

Choose two pictures from a magazine. No computer printouts or drawings Choose two pictures from a magazine. No computer printouts or drawings. Cut each picture into a square. Identify your square. Find out which three forces act on the picture. Then draw three arrows and label each force. Your cut and paste project should now look like a free body diagram. Repeat the same instructions for your second picture. Make sure none of the forces are repeated for both pictures. On back of the paper, write the forces that are exerted. Ask what “it” is. It = object or person

CREATE A FREE BODY DIAGRAM 1. Cut out two pictures from magazines 2 CREATE A FREE BODY DIAGRAM 1. Cut out two pictures from magazines 2. Label each picture and the three forces that exerts on it. 3. None of the forces should be repeated. 4. On the back of the paper, explain the forces you chose. 2014: Level 3 project: honors Bikers Or bikes

Choose three pictures from a magazine Choose three pictures from a magazine. No computer printouts or drawings. Cut each picture into a square. Identify your square. Find out which two forces act on the picture. Then draw two arrows and label each force. Your cut and paste project should now look like a free body diagram. Repeat the same instructions for your second and third picture. One force can be repeated in all three pictures. The remaining four forces is used once. Ics class

CREATE A FREE BODY DIAGRAM 1. Cut out three pictures from magazines 2 CREATE A FREE BODY DIAGRAM 1. Cut out three pictures from magazines 2. Label each picture and the two forces. 3. You may repeat two forces twice. The remaining four forces is used once. 2014: Level 1 (#1-3) , level 2 (#1-4) 2015: general class Bikes or bikers

CREATE A FREE BODY DIAGRAM 1. Cut out three pictures from magazines 2 CREATE A FREE BODY DIAGRAM 1. Cut out three pictures from magazines 2. Label each picture and the two forces. 3. One force may be repeated. The remaining four forces is used once. ics Bikes or bikers

Reflections date Which assignments prepared you for the Free Body Diagram Project? Explain. (do now, lab, word problems)