Podcast
Questions and Answers
What force arises when two surfaces rub over each other?
What force arises when two surfaces rub over each other?
Which force acts on an object moving through air?
Which force acts on an object moving through air?
What force acts on a string or rope when it is stretched by an object?
What force acts on a string or rope when it is stretched by an object?
Which force acts on a spring when it is compressed or stretched by an object?
Which force acts on a spring when it is compressed or stretched by an object?
Signup and view all the answers
What force exists between two objects with mass and separated by some distance?
What force exists between two objects with mass and separated by some distance?
Signup and view all the answers
What force occurs between two or more stationary electric charges?
What force occurs between two or more stationary electric charges?
Signup and view all the answers
Which force is responsible for the revolution of the moon around the Earth?
Which force is responsible for the revolution of the moon around the Earth?
Signup and view all the answers
What force acts between a magnetic strip on a refrigerator door and the metallic body of the refrigerator?
What force acts between a magnetic strip on a refrigerator door and the metallic body of the refrigerator?
Signup and view all the answers
Why does everything on Earth stay stuck to the Earth?
Why does everything on Earth stay stuck to the Earth?
Signup and view all the answers
When a heavy parcel is being pushed inside a building, which force pulls the parcel down towards the Earth?
When a heavy parcel is being pushed inside a building, which force pulls the parcel down towards the Earth?
Signup and view all the answers
Study Notes
Understanding Applied Force
- Applied force is defined as any push or pull exerted by one object on another.
- Examples include a man pushing a door open or a girl pulling a suitcase.
- Applied forces can result in changes to an object's motion, shape, or size.
Key Characteristics of Applied Force
- Involves interaction between at least two objects.
- Has both magnitude and direction, thus classified as a vector quantity.
- Capable of changing an object's state of rest, motion, or orientation.
Examples of Applied Force
- Catching a Ball: A player catches a ball, changing its state from motion to rest.
- Hitting a Baseball: A player applies force, altering the ball’s trajectory.
- Creating Pottery: An artisan applies force to reshape clay into desired forms.
- Magnetism: A magnet attracts metal coins without direct contact, showing non-contact force.
Types of Applied Forces
- Contact Forces: Occur when objects physically touch, such as catching or hitting balls.
- Non-Contact Forces: Exerted at a distance, like magnet attraction, without physical contact.
Properties of Applied Forces
- All applied forces are vector-based, requiring specification of both magnitude and direction.
- Applied forces are additive; the resultant force is the vector sum of individual forces.
- An object's applied force can be zero when equal forces act in opposite directions.
Contact vs Non-Contact Forces
- Contact forces involve physical touch and result from direct interaction.
- Non-contact forces exist between separated objects, exhibiting influence over distance.
- Contact forces have a distance of zero, while non-contact forces have a non-zero distance that decreases attraction strength.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Learn about applied force in physics, which refers to the pushing or pulling effect exerted by one object on another. Examples include a person pushing a door open or pulling a suitcase. Discover how objects attract or repel each other, leading to the application of force.
