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Newton's 2nd Law of Motion

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  • What happens if you add force to an empty shopping cart?
    It moves quickly
  • If Tony uses the same force that he used with his car to push his bike, why does the bike move quicker?
    It has less mass
  • If you applied a net force (pushed) a brick with one hand and pushed a marble with another hand which would go a longer distance?
    Marble
  • The force that Tony applies to the car does what to the car?
    Makes the car move faster
  • The mass of the empty cart is what?
    Has a lower mass than a full cart
  • What is mass?
    The amount of material an object has
  • If you dropped a plastic cup and a paper cup from a table, which would hit the ground last?
    The paper cup
  • Why would the pencil and not the straw travel a longer distance
    Its heavier or has more mass
  • Between the paper and plastic cup, why would the paper cup hit the ground last?
    Its lighter or has less mass
  • Newton’s 2nd law of motion says the amount of force applied to an object does what?
    Affects its speed
  • What happens to the MASS of the shopping cart as you add things to it?
    The mass increases
  • What is the formula for force?
    F= m x a
  • What are the three concepts that relate to Newton’s 2nd law?
    Force, mass, acceleration
  • Why would the answer you selected for number 15 go the longer distance?
    Its lighter or has less mass
  • F= m x a : Force equals mass x acceleration
    True
  • The acceleration or speed of an object depends on what?
    Its mass
  • The weight of an object depends on what?
    The object's mass
  • Why do you need more force to push the cart as items are added to it?
    The items in it makes it heavier
  • If you tossed a pencil and a paper straw at the same time, which one would travel the shorter distance?
    The paper straw
  • The amount of force needed depends on what two things?
    How fast you want an object to move and its mass