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Author:
Whitney Isbell

8.6A: At the end of this lesson the student is expected to demonstrate and calculate how unbalanced forces change the speed or direction of an object's motion.

Tutorial

Open your Student Expectation to the Third Six Weeks

Find the Student Expectation 8.6A: Demonstrate and calculate how unbalanced forces change the speed or direction of an object's motion

- Highlight the verb and the context clues that will help you in understanding the student expectation.

8.6A: Demonstrate and calculate how unbalanced forces change the speed or direction of an object's motion

For this lesson please make Cornell notes in your journal and create notes from the reference text and the video. Include the terms:

- force
- unbalanced force
- net force
- an example of calculating net force
- acceleration
- velocity
- speed

Be sure to include a summary at the end of your Cornell Notes about what you have learned.

At the end of this lesson please post a question if you need additional help.

Two children are pulling a rope from opposite ends. The child on the left pulls the rope with a force of 100 N and the child on the right pulls it with a force of 55 N. What is the net force acting on the rope and in which direction is it acting?

Solution:

The child on the left is pulling with a force of 100N

The child on the right is pulling with a force of 55N

The net force would be the difference between 100N and 55N. 100N-55N= 45N

The stronger force is pulling to the left

The answer is that the rope will move to the left with a force of 45N.

Take the practice quiz on this page and see how well you are learning this lesson.

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and complete the assignments for 8.6A