Physical Science Module 10

16 Questions | Total Attempts: 1929

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Physical Science Module 10

Physical Science Newton's Laws


Questions and Answers
  • 1. 
    The tendency of an object to resist changes in its velocity is called:
    • A. 

      Friction

    • B. 

      Static Friction

    • C. 

      Kinetic Friction

    • D. 

      Inertia

  • 2. 
    A force that opposes motion, resulting from the contact of two surfaces is called:
    • A. 

      Friction

    • B. 

      Static Friction

    • C. 

      Kinetic Friction

    • D. 

      Inertia

  • 3. 
    Friction that opposes motion once the motion has already started is called:
    • A. 

      Friction

    • B. 

      Static Friction

    • C. 

      Kinetic Friction

    • D. 

      Inertia

  • 4. 
    Friction that opposes the initiation of motion is called:
    • A. 

      Friction

    • B. 

      Static Friction

    • C. 

      Kinetic Friction

    • D. 

      Inertia

  • 5. 
    Which of Newton's 3 laws states:  For every action, there is an equal and opposite reaction?
    • A. 

      Newton's First Law

    • B. 

      Newton's Second Law

    • C. 

      Newton's Third Law

  • 6. 
    Which of Newton's 3 laws states:  An object in motion (or at rest) will tend to stay in motion (or at rest) until it is acted upon by an outside force?
    • A. 

      Newton's First Law

    • B. 

      Newton's Second Law

    • C. 

      Newton's Third Law

  • 7. 
    Which of Newton's 3 laws states:  When an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration?
    • A. 

      Newton's First Law

    • B. 

      Newton's Second Law

    • C. 

      Newton's Third Law

  • 8. 
    A pilot is flying a mission to drop bombs on an enemy airfield.  The plane is flying high and fast to the north, and the city is due north.  Should the pilot drop the bombs before the plane is over the airfield, when the plane is over the airfield, or after the plane has passed the airfield?
    • A. 

      Before the plane reaches the airfield

    • B. 

      When the plane is directly over the airfield

    • C. 

      After the plane has passed the airfield

  • 9. 
    A cruel boy has placed a mouse on the outer edge of a disk.  He slowly starts to spin the disk, accelerating it faster and faster until the disk and mouse are both spinning around at an alarming rate.  What will happen to the mouse if the boy suddenly stops the disk without touching the mouse:  will the mouse continue to spin like it was before; will the mouse stop with the disk; or will the mouse start moving straight, skidding off the disk?
    • A. 

      The mouse will continue to spin like it was before

    • B. 

      The mouse will stop with the disk

    • C. 

      The mouse will start moving straight, skidding off the disk

  • 10. 
    An ice cube (mass = 1.0kg) slides down an inclined serving tray with an acceleration of 4.0 meters per second (squared).  Ignoring friction, how much force is pulling the ice cube down the serving tray?  Please work your problem out on a separate sheet of paper for the answer. 
    • A. 

      0.25 Newtons down the tray

    • B. 

      4.0 Newtons down the tray

    • C. 

      25 Newtons down the tray

    • D. 

      40 Newtons down the tray

  • 11. 
    A baseball player (mass = 75 kilograms) is running north towards a base.  In order to avoid being tagged by the ball, the baseball player slides into the base.  If his acceleration in the slide is 5.0 meters per second (squared) south, what is the kinetic frictional force between the baseball player and the ground? Please work your problem out on a separate sheet of paper for the answer.
    • A. 

      15 Newtons to the North

    • B. 

      15 Newtons to the South

    • C. 

      375 Newtons to the North

    • D. 

      375 Newtons to the South

  • 12. 
    A man pushes a heavy cart.  If the man exerts a force of 200 Newtons on the cart to keep it moving at a constant velocity, what is the frictional force between the cart and the ground?  Is this kinetic friction or static friction? Please work your problem out on a separate sheet of paper for the answer.
    • A. 

      The frictional force is zero Newtons against the motion of the cart - Static.

    • B. 

      The frictional force is zero Newtons against the motion of the cart - Kinetic

    • C. 

      The frictional force is 200 Newtons against the motion of the cart - Static

    • D. 

      The frictional force is 200 Newtons against the motion of the cart - Kinetic

  • 13. 
    You are looking through a physicist's laboratory notebook and notice two numbers for the friction between a block of wood and a laboratory bench.  The numbers are 8 Newtons and 11 Newtons.  Which one refers to static friction and which one refers to kinetic friction?
    • A. 

      11 Newtons refers to static friction and 8 Newtons refers to kinetic friction

    • B. 

      8 Newtons refers to static friction and 11 Newtons refers to kinetic friction

  • 14. 
    A woman pushes a box (mass = 30 kilograms).  The static friction between the box and the ground is 20 Newtons, while the kinetic friction is 7 Newtons.  How much force must the woman exert to get the box moving? Please work your problem out on a separate sheet of paper for the answer.
    • A. 

      Less than 7 Newtons

    • B. 

      Greater than 7 Newtons

    • C. 

      Less than 20 Newtons

    • D. 

      Greater than 20 Newtons

  • 15. 
    A woman pushes a box (mass = 30 kilograms).  The static friction between the box and the ground is 20 Newtons, while the kinetic friction is 7 Newtons.  With what force must she push the box in order to get it to accelerate at 1.0 meters per second (squared) to the west? Please work your problem out on a separate sheet of paper for the answer.
    • A. 

      A force of 23 Newtons West

    • B. 

      A force of 37 Newtons West

    • C. 

      A force of 30 Newtons West

    • D. 

      A force of 27 Newtons West

  • 16. 
    When baseball players hit the ball hard enough, their bats can sometimes break.  What is exerting a force on the bat, causing it to break?
    • A. 

      The force of the player's swing

    • B. 

      The ball

    • C. 

      The bat itself

    • D. 

      Wind shear

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