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Motion and Speed

Practice Test
      
  1.The distance between the final position and the starting position is the __________.  
  a.   differential  
  b.   acceleration  
  c.   displacement  
  d.   velocity  
  Hint    
      
  2.Which of the following is not an acceleration?  
  a.   stopping your bike at an intersection  
  b.   slowing your bike ride so you can make it up a hill  
  c.   riding your bike straight down the street at a constant speed  
  d.   riding your bike faster when you ride down a hill  
  Hint    
      
  3.__________ measures an object's tendency to resist changing its motion.  
  a.   Gravity  
  b.   Mass  
  c.   Inertia  
  d.   Acceleration  
  Hint    
      
  4.The distance between an object and a reference point is the object's __________.  
  a.   displacement  
  b.   neutral point  
  c.   velocity  
  d.   position  
  Hint    
      
  5.The direction and speed of an object is described by its __________.  
  a.   velocity  
  b.   average speed  
  c.   displacement  
  d.   average displacement  
  Hint    
      
  6.__________ is the change in velocity divided by the time needed for the change to occur.  
  a.   Acceleration  
  b.   Displacement  
  c.   Average velocity  
  d.   Speed  
  Hint    
      
  7.Which of the following devices is used to indicate instantaneous speed?  
  a.   compass  
  b.   stopwatch  
  c.   odometer  
  d.   speedometer  
  Hint    
      
  8.Any change over time is called a(n) __________.  
  a.   rate  
  b.   velocity  
  c.   acceleration  
  d.   speed  
  Hint    
      
  9.At 8:00 AM you leave home and walk 0.5 km to a friend's house. At 11:30 AM you return home, then travel by car to the mall, which is 10 km away, and arrive at 11:45 AM. What is the total distance traveled?  
  a.   10 km  
  b.   10.5 km  
  c.   2.8 km/h  
  d.   11 km  
  Hint    
      
  10.To calculate the distance traveled continuously in a straight line, __________.  
  a.   divide the change in velocity by the time over which the change occurs  
  b.   subtract final position from starting position  
  c.   subtract the time needed to travel the distance by the total distance traveled  
  d.   divide the distance traveled by the time needed to travel the distance  
  Hint    
      
  11.__________ is the distance an object travels per unit of time.  
  a.   Velocity  
  b.   Acceleration  
  c.   Speed  
  d.   Displacement  
  Hint    
      
  12.Newton's first law of motion states that __________.  
  a.   when a force is applied on an object, there is an equal force applied by the object in the opposite direction  
  b.   when a force acts on an object, its acceleration is in the same direction as the force  
  c.   acceleration is calculated by dividing the force exerted on an object by the mass of the object  
  d.   an object will remain at rest or keep moving unless a force acts on it  
  Hint    
      
  13.The __________ is the combination of all the forces acting on an object.  
  a.   direction of motion  
  b.   force pair  
  c.   inertia  
  d.   net force  
  Hint    
      
  14.If a runner maintains a constant speed of 12 km/h, how long will it take to complete a marathon race of 26.2 miles?  
  a.   3.14 h  
  b.   5.3 h  
  c.   3.52 h  
  d.   2.18 h  
  Hint    
      
  15.Changes in which of the following of Earth's layers cause earthquakes?  
  a.   magnetosphere  
  b.   lithosphere  
  c.   core  
  d.   stratosphere  
  Hint    
      
  16.A(n) __________ is a push or a pull that one body exerts on another.  
  a.   force  
  b.   acceleration  
  c.   velocity  
  d.   motion  
  Hint    
      
  17.If you travel 1.7 km north from your house at noon, and at 6:00 PM you travel 5.4 km south, what is your displacement?  
  a.   3.7 km  
  b.   3.7 km south  
  c.   7.1 km south  
  d.   7.1 km north  
  Hint    
      
  18.The SI unit of distance is the __________.  
  a.   liter  
  b.   meter  
  c.   mile  
  d.   gram  
  Hint    
      
  19.Average speed is found by __________.  
  a.   dividing total distance traveled by the total time  
  b.   multiplying total distance traveled by the total time  
  c.   dividing the displacement by the total time spent  
  d.   multiplying the displacement by the total time spent  
  Hint    
      
  20.Forces that cancel each other are called __________ forces.  
  a.   null  
  b.   neutral  
  c.   balanced  
  d.   inactivated  
  Hint    

 
   
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