Podcast
Questions and Answers
What type of force is frictional force?
What type of force is frictional force?
Which of the following fibers is made from wood pulp?
Which of the following fibers is made from wood pulp?
What is a characteristic of nylon?
What is a characteristic of nylon?
Which force acts without physical contact between two objects?
Which force acts without physical contact between two objects?
Signup and view all the answers
What is a use of polyester?
What is a use of polyester?
Signup and view all the answers
Which of the following fibers is known for being soft and warm?
Which of the following fibers is known for being soft and warm?
Signup and view all the answers
What is a characteristic of rayon?
What is a characteristic of rayon?
Signup and view all the answers
Which type of force is magnetic force?
Which type of force is magnetic force?
Signup and view all the answers
Study Notes
Contact and Non-Contact Forces
- Forces can be classified into two categories: contact forces and non-contact forces
-
Contact Forces:
- Forces that act through direct physical contact between two objects
- Examples:
- Frictional force
- Muscular force
- Normal force
-
Non-Contact Forces:
- Forces that act without physical contact between two objects
- Examples:
- Gravitational force
- Magnetic force
- Electrostatic force
Synthetic Fibers
-
Rayon:
- A semi-synthetic fiber made from wood pulp
- Properties:
- Soft and smooth
- Breathable
- Can be dyed easily
- Uses:
- Clothing
- Upholstery
- Bedding
-
Nylon:
- A synthetic fiber made from polyamide
- Properties:
- Strong and resistant to wear
- Water-resistant
- Easy to clean
- Uses:
- Outdoor gear
- Sportswear
- Fishing nets
-
Polyester:
- A synthetic fiber made from polyethylene terephthalate (PET)
- Properties:
- Strong and resistant to wrinkles
- Easy to care for
- Can be blended with other fibers
- Uses:
- Clothing
- Upholstery
- Bottles
-
Acrylics:
- A synthetic fiber made from polyacrylonitrile (PAN)
- Properties:
- Soft and warm
- Lightweight
- Resistant to wrinkles
- Uses:
- Clothing
- Blankets
- Hats and scarves
Forces
- Contact forces act through direct physical contact between two objects
- Examples of contact forces include frictional force, muscular force, and normal force
- Non-contact forces act without physical contact between two objects
- Examples of non-contact forces include gravitational force, magnetic force, and electrostatic force
Synthetic Fibers
Rayon
- Semi-synthetic fiber made from wood pulp
- Properties: soft and smooth, breathable, can be dyed easily
- Uses: clothing, upholstery, bedding
Nylon
- Synthetic fiber made from polyamide
- Properties: strong and resistant to wear, water-resistant, easy to clean
- Uses: outdoor gear, sportswear, fishing nets
Polyester
- Synthetic fiber made from polyethylene terephthalate (PET)
- Properties: strong and resistant to wrinkles, easy to care for, can be blended with other fibers
- Uses: clothing, upholstery, bottles
Acrylics
- Synthetic fiber made from polyacrylonitrile (PAN)
- Properties: soft and warm, lightweight, resistant to wrinkles
- Uses: clothing, blankets, hats and scarves
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Classify forces into contact and non-contact forces and learn about synthetic fibers like Rayon. Understand the differences and examples of each type of force and fiber.
