Contact and Non-Contact Forces Flashcards
20 Questions
101 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a contact force?

  • A force between two objects that are not touching.
  • A force between two objects that are touching each other. (correct)
  • A force that acts through a distance.
  • None of the above.

    • What is a non-contact force?

  • A force that acts through the distance between two objects. (correct)
  • A force that requires physical touch between objects.
  • A force that can only be experienced by one object.
  • None of the above.

    • All forces have both _________________________ and ___________________________.

    magnitude, direction

    What is impact force?

    <p>Force acting with a direct hit</p> Signup and view all the answers

    What is frictional force?

    <p>Force exerted in rubbing one object against another, opposing motion.</p> Signup and view all the answers

    What is buoyant force?

    <p>Upward force in a fluid (gas or liquid)</p> Signup and view all the answers

    What is centripetal force?

    <p>Inward force of a circle or turn</p> Signup and view all the answers

    What is inertia?

    <p>Property of matter that tends to resist any change in velocity</p> Signup and view all the answers

    What does air resistance oppose?

    <p>The downward force of a feather</p> Signup and view all the answers

    What are balanced forces?

    <p>Forces that have a net force of zero</p> Signup and view all the answers

    What are unbalanced forces?

    <p>Forces that have a net force that is not zero</p> Signup and view all the answers

    What is gravitational force?

    <p>Force of attraction between two objects that depends on mass and distance</p> Signup and view all the answers

    What is electrostatic force?

    <p>Force between electrically charged objects</p> Signup and view all the answers

    What is elastic force?

    <p>Force capable of resuming original shape after stretching or compression</p> Signup and view all the answers

    What is tension force?

    <p>Forces between strings and ropes</p> Signup and view all the answers

    What causes the orbits of planets and satellites?

    <p>Inertia and the force of gravity</p> Signup and view all the answers

    What is magnetic force?

    <p>Attraction or repulsion between magnetic poles</p> Signup and view all the answers

    What does the equation F=m x a represent?

    <p>Newton's 2nd law of motion</p> Signup and view all the answers

    Examples of contact forces include ______________________, ______________________, _________________, ___________________, ____________________, _________________ and _________________ .

    <p>Buoyant force, air resistance, friction, tension, impact force, elastic force</p> Signup and view all the answers

    Examples of non-contact forces include ______________________, ______________________, __________________, ___________________ .

    <p>Gravitational force, electrostatic force, magnetic force, centripetal force</p> Signup and view all the answers

    Study Notes

    Contact and Non-Contact Forces

    • Contact Force: Force that occurs between two objects physically touching each other.
    • Non-Contact Force: Force that acts at a distance without physical contact between objects.

    Characteristics of Forces

    • Magnitude and Direction: Every force possesses both strength (magnitude) and orientation (direction).
    • Impact Force: Result of a direct collision between two objects, exerting force upon contact.

    Types of Contact Forces

    • Frictional Force: Resistance encountered when two surfaces rub against each other; can be classified into rolling, sliding, fluid, or static friction.
    • Buoyant Force: Upward force exerted by a fluid, counteracting gravitational force on submerged or floating objects.
    • Tension Force: The pulling force transmitted through a string, rope, or cable.
    • Elastic Force: The ability of an object to return to its original shape after being stretched or compressed.
    • Air Resistance: Force opposing the motion of an object through air; e.g., it slows down a falling feather.
    • Impact Force: Direct force experienced during a collision.

    Types of Non-Contact Forces

    • Gravitational Force: Attraction between two masses, influenced by their mass and the distance separating them.
    • Electrostatic Force: Attraction or repulsion between charged objects; like charges repel while opposite charges attract.
    • Magnetic Force: Force of attraction or repulsion between magnetic poles.
    • Centripetal Force: An inward force that keeps an object moving in a circular path.

    Dynamics of Forces

    • Balanced Forces: Forces that are equal in size and opposite in direction, resulting in no change in an object's motion (net force of zero).
    • Unbalanced Forces: Forces that are not equal, producing a net force that causes acceleration, changing an object's velocity (e.g., speeding up, slowing down, or changing direction).

    Key Concepts in Motion

    • Inertia: The natural tendency of an object to resist changes in its velocity, maintaining its state of motion.
    • Orbits of Planets and Satellites: Resulting from the interplay of inertia and gravitational force which keeps celestial bodies in motion around each other.

    Newton's Laws

    • Newton's Second Law (F = m x a): Describes how the force acting on an object is equal to the mass of the object multiplied by its acceleration; suggests that more mass requires greater force to achieve the same acceleration.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    This quiz consists of flashcards that cover the concepts of contact and non-contact forces. Each card defines key terms and principles relevant to forces acting between objects. Sharpen your understanding of physics with this interactive study tool.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser