Calculating Average Acceleration with Zero Time Interval
19 Questions
0 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 the relationship between angular velocity and tangential velocity?

  • They are perpendicular to each other.
  • They are directly proportional. (correct)
  • They are inversely proportional.
  • They are always equal in magnitude.

    • Which vector points towards the center in circular motion?

  • Tangential acceleration vector
  • Tangential velocity vector
  • Angular velocity vector
  • Centripetal acceleration vector (correct)

    • In circular motion, what must be true for an object to stay in its curved trajectory?

  • The tangential force must be greater than the centripetal force.
  • The net force must be positive.
  • The object must accelerate outward from the circle.
  • The centripetal force must be balanced by the tangential force. (correct)

    • What is the relationship between angular acceleration and tangential acceleration?

    <p>There is a direct relationship between them.</p> Signup and view all the answers

    If two objects are spun in a circle at the same radius and angular velocity, which has a greater linear velocity upon release?

    <p>Both objects have the same linear velocity</p> Signup and view all the answers

    What happens to tangential acceleration when an object is constantly changing direction?

    <p>Tangential acceleration must not be zero.</p> Signup and view all the answers

    In a flat turn at high speed, what type of force balances the tangential force?

    <p>Frictional force</p> Signup and view all the answers

    What is the unit of tangential acceleration?

    <p>$ms^{-2}$</p> Signup and view all the answers

    If an object experiences a net force of zero in a curve, what can be said about its trajectory?

    <p>The object will maintain its curved trajectory.</p> Signup and view all the answers

    What is the relationship between tangential velocity and angular velocity?

    <p>They are directly proportional</p> Signup and view all the answers

    In circular motion, what is the direction of the tangential acceleration vector?

    <p>Along the tangent line</p> Signup and view all the answers

    When considering forces in a curve, what is needed for an object to maintain its curved trajectory?

    <p>Balanced tangential and centripetal forces</p> Signup and view all the answers

    If a satellite orbits a planet once every 30 days, what can be inferred about its speed?

    <p>It is constant</p> Signup and view all the answers

    What does a tangential acceleration of zero indicate in circular motion?

    <p>The object is moving at a constant speed</p> Signup and view all the answers

    When a car enters a freeway ramp at 45 mph and accelerates to 65 mph, what can be said about its centripetal force?

    <p>It balances the tangential force</p> Signup and view all the answers

    What is the effect of a tangential acceleration pointing opposite to the object's motion?

    <p>Causing the object to leave its circular path</p> Signup and view all the answers

    In circular motion, what balances the gravitational pull on an object to keep it in orbit?

    <p>'Sideways' centripetal force</p> Signup and view all the answers

    When an object has a net force of zero in a curve, what does this imply about its velocity?

    <p>'Terminal velocity' is reached</p> Signup and view all the answers

    What happens when a snowboarder slows down during a turn?

    <p>Negative acceleration occurs to slow down</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser