Ch. 19: Motion, Force, & Newton's Laws Review

The tendency of an object to resist a change in motion is known as ___.

• force
• motion
• inertia
• balance

The amount of matter in an object is called its ___.

• mass
• balance
• force
• weight

The force of gravity on a person or object is known as___.

• mass
• air resistance
• inertia
• weight

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A book is sitting on a dashboard of a car that’s stopped at a traffic light. As the car starts to move forward, the book slides off the dashboard. Pick the most correct explanation.

• There was grease on the dashboard.
  
• The object has inertia.
  
• A supernatural force took over.
  
• Air resistance made the book move backward.
  

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According to Newton’s 3rd Law of Motion, when a hammer strikes and exerts a force on a nail, the nail ___.

• creates a balanced force
  
• disappears into the wood
  
• moves at a constant speed
  
• exerts an equal and opposite force back on the hammer
  

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Pick the best example of Newton’s 3rd Law in action.

• A rocket taking off from Earth which pushes gases in one direction and the rocket in the other.
  
• A rocket sitting on the ground preparing for take-off but it needs an outside force to overcome its inertia of a non-moving object.
  
• A rocket that is accelerating through space and exerts a great amount of force because it’s mass and acceleration are so large.
  
• Fig Newtons

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Pick the best example of Newton’s 2nd Law in action.

• A rocket taking off from Earth which pushes gases in one direction and the rocket in the other.
  
• A rocket sitting on the ground preparing for take-off but it needs an outside force to overcome its inertia of a non-moving object.
  
• A rocket that is accelerating through space and exerts a great amount of force because it’s mass and acceleration are so large.
  
• Fig Newtons

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Pick the best example of Newton’s 1st Law in action.

• A rocket taking off from Earth which pushes gases in one direction and the rocket in the other.
  
• A rocket sitting on the ground preparing for take-off but it needs an outside force to overcome its inertia of a non-moving object.
  
• A rocket that is accelerating through space and exerts a great amount of force because it’s mass and acceleration are so large.
  
• Fig Newtons

An example of balanced forces (net force) is ___.

• car sliding on ice
• car hitting a telephone pole
• tug-of-war game in which no one wins
  
• roller coaster going down the first drop.
  

An example of unbalanced forces (net force) is a ___.

• car parked in a garage
• bridge
• tug-of-war game in which no one wins
• roller coaster going down the first drop
  

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