# Understanding Forces and their Effects on Objects  This article explores the concept of forces and their impact on an object's position, direction, and speed. It also covers the difference between balanced and unbalanced forces, with a focus on common forces like gravity. Adapted from a PowerPoint by Kathleen Ingram at Lamar Middle School.

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## About Understanding Forces and their Effects on Objects

PowerPoint presentation about 'Understanding Forces and their Effects on Objects'. This presentation describes the topic on This article explores the concept of forces and their impact on an object's position, direction, and speed. It also covers the difference between balanced and unbalanced forces, with a focus on common forces like gravity. Adapted from a PowerPoint by Kathleen Ingram at Lamar Middle School.. The key topics included in this slideshow are forces, position, direction, speed, balanced forces, unbalanced forces, gravity, physics, motion,. Download this presentation absolutely free.

## Presentation Transcript

1. Forces Forces You will be able to: Identify and describe the changes in position, direction, and speed of an object when acted upon by unbalanced forces. Identify balanced and unbalanced forces. Adapted from a PowerPoint by Kathleen Ingram, Lamar Middle School

2. What are some common forces? What are some common forces? Gravity the force with which the earth, moon, or another massive object attracts another object towards itself. Gravity the force with which the earth, moon, or another massive object attracts another object towards itself.

3. What are some common forces? What are some common forces? Normal force a support force exerted upon an object in contact to another object. Normal force a support force exerted upon an object in contact to another object.

4. Net Force Net Force The net force is the combined effect of all forces acting on an object. The net force is the combined effect of all forces acting on an object.

5. Force Force Balanced Forces Balanced Forces forces acting on an object that are opposite in direction and equal in size no change in speed

6. Force Force Unbalanced forces Unbalanced forces unbalanced forces that are not opposite and equal unbalanced forces that are not opposite and equal velocity changes (object accelerates) velocity changes (object accelerates) F friction W F pull F net N N

7. Are there different forces acting on the figure skaters? What direction are the forces acting? Are the forces balanced or unbalanced ? How do you know?

8. Balanced and unbalanced forces Balanced and unbalanced forces http://www.engineeringinteract.org/resourc es/parkworldplot/flash/concepts/balanced andun.htm http://www.engineeringinteract.org/resourc es/parkworldplot/flash/concepts/balanced andun.htm

9. Today we will demonstrate Today we will demonstrate (A) basic relationships between force and motion using simple machines including pulleys and levers (A) basic relationships between force and motion using simple machines including pulleys and levers (A) that an object will remain at rest or move at a constant speed and in a straight line if it is not being subjected to an unbalanced force (A) that an object will remain at rest or move at a constant speed and in a straight line if it is not being subjected to an unbalanced force (B) how unbalanced forces cause changes in the speed or direction of an object's motion (B) how unbalanced forces cause changes in the speed or direction of an object's motion

10. Tug of War Tug of War drawing drawing

11. Force Problems Force Problems 20 N What is the net force? What is the net force? Are the forces balanced or unbalanced? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) Describe the motion of the object. (none, accelerate to left, accelerate to right) 20 N

12. Force Problems Force Problems 20 N What is the net force? What is the net force? Are the forces balanced or unbalanced? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) Describe the motion of the object. (none, accelerate to left, accelerate to right) 30 N

13. Force Problems Force Problems 20 N What is the net force? What is the net force? Are the forces balanced or unbalanced? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) Describe the motion of the object. (none, accelerate to left, accelerate to right) 10 N

14. Force Problems Force Problems 20 N What is the net force? What is the net force? Are the forces balanced or unbalanced? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) Describe the motion of the object. (none, accelerate to left, accelerate to right) 30 N

15. Force Problems Force Problems 30 N What is the net force? What is the net force? Are the forces balanced or unbalanced? Are the forces balanced or unbalanced? Describe the motion of the object. (none, accelerate to left, accelerate to right) Describe the motion of the object. (none, accelerate to left, accelerate to right) 30 N