Introduction
Laws of Motion: Gravity and Friction
- Learning Goals:
- Describe and give examples of contact forces/non-contact forces
- Describe the law of Universal Gravitation
- Explain how friction affects the motion of objects
Directions
Use the attached Google Document or the printed sheet given to you in class. Answer the questions as you navigate and view the materials below. Send the completed Google Doc to Coach Metz or turn in the printed sheet to the basket.
Google Doc:
https://docs.google.com/document/d/1pnn5LouBm0mnCl2F115G08J17BHoVWA4SVnh3xYTNmE/edit?usp=sharing
Contact Forces/Non-contact Forces
Watch the video below and answer the questions with your partner.
- Use your text or Google to define the following vocabulary: contact force, non-contact force
- What is the difference between contact and non-contact forces?
- Give 3 examples of contact forces.
- Give an example of a non-contact force.
Click on the link below and analyze the image for the next question.
https://res.cloudinary.com/dk-find-out/image/upload/q_80,w_320,f_auto/MA_00776529_miuoru.jpg
5. What type of force is pulling on the girl's hair?
Universal Gravitation
Watch the video and answer the following questions.
6. Before the experiment, which ball did you think was going to hit the ground first?
7. What did you learn from this experiment?
Go to the following site to fill in the blanks on the following statement about Newton's Law of Gravitation
https://www.activewild.com/gravity-for-kids/#:~:text=Newton's%20Law%20O…((m1xm2)%20%2F,is%20applied%20in%20the%20Universe.
8. Any _______ bodies in the universe ___________ each other with a __________ that is directly _________________ to the product of their _________ and inversely proportional to the ________________ of the distance between them.
9. If the mass of an object is doubled, what happens to the
- gravitational force: ____________________________________________________
- rate of acceleration: ___________________________________________________
Friction
10. Use your textbook or google search to define Friction.
11. How does friction affect motion?
Go to the following website and follow the directions to play the game with the car. Answer the following questions when complete.
https://www.sciencekids.co.nz/gamesactivities/friction.html
12. What surface worked the best for moving the car?
13. Why did the car travel further when you pulled the handle back farther?
Teacher Page
- Cultural awareness: This lesson is designed to give the students the option to work collaboratively or individually in class or from home if distance learning. Obstacles that need to be addressed is accessibility to the content for students with lack of technology at home if the district transitions to distance learning. Solutions include checking out devices to students or creating alternate paper assignment.
- Cultural relevance: The content is related to real life applications.
- Culturally supportive environments: Learners are asked to make predictions about experiments based on their prior knowledge and experiences.
- Equitable access: This lesson is designed to be completed during a regular class period. Devices and materials will be available for the students in class to complete the activity. Obstacles may exist if the district transitions to distance learning.
- Instructional flexibility: A variety of media, text, and instructional games are used to deliver content. Students may work collaboratively or individually as they progress through the material and demonstrate their knowledge of the learning goals.
- Instructional integration: Students will use computers to view the sites and media I provided for them, but will also have to search for some content themselves.