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Motion and Speed

Practice Test
      
  1.A(n) __________ is a push or a pull that one body exerts on another.  
  a.   velocity  
  b.   motion  
  c.   force  
  d.   acceleration  
  Hint    
      
  2.The distance between an object and a reference point is the object's __________.  
  a.   position  
  b.   neutral point  
  c.   displacement  
  d.   velocity  
  Hint    
      
  3.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.   2.8 km/h  
  b.   10.5 km  
  c.   11 km  
  d.   10 km  
  Hint    
      
  4.Which of the following devices is used to indicate instantaneous speed?  
  a.   odometer  
  b.   speedometer  
  c.   stopwatch  
  d.   compass  
  Hint    
      
  5.__________ measures an object's tendency to resist changing its motion.  
  a.   Acceleration  
  b.   Mass  
  c.   Gravity  
  d.   Inertia  
  Hint    
      
  6.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.   7.1 km north  
  b.   7.1 km south  
  c.   3.7 km south  
  d.   3.7 km  
  Hint    
      
  7.Changes in which of the following of Earth's layers cause earthquakes?  
  a.   core  
  b.   stratosphere  
  c.   lithosphere  
  d.   magnetosphere  
  Hint    
      
  8.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    
      
  9.Forces that cancel each other are called __________ forces.  
  a.   null  
  b.   balanced  
  c.   inactivated  
  d.   neutral  
  Hint    
      
  10.If a student leaves home at 7:30 AM to walk to his school 2 km away, stops at a neighbor's house for 15 min, then arrives at school at 8:00 AM, what is the student's average speed for the trip to school?  
  a.   2.67 km/h  
  b.   8 km/h  
  c.   4 km/h  
  d.   2 km/h  
  Hint    
      
  11.Which of the following is not an acceleration?  
  a.   riding your bike straight down the street at a constant speed  
  b.   stopping your bike at an intersection  
  c.   slowing your bike ride so you can make it up a hill  
  d.   riding your bike faster when you ride down a hill  
  Hint    
      
  12.__________ is the speed of an object at any instant of time.  
  a.   Acceleration  
  b.   Instantaneous speed  
  c.   Velocity  
  d.   Average speed  
  Hint    
      
  13.Any change over time is called a(n) __________.  
  a.   acceleration  
  b.   rate  
  c.   velocity  
  d.   speed  
  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.   5.3 h  
  b.   3.52 h  
  c.   2.18 h  
  d.   3.14 h  
  Hint    
      
  15.__________ is the distance an object travels per unit of time.  
  a.   Velocity  
  b.   Displacement  
  c.   Acceleration  
  d.   Speed  
  Hint    
      
  16.To calculate the distance traveled continuously in a straight line, __________.  
  a.   subtract final position from starting position  
  b.   divide the distance traveled by the time needed to travel the distance  
  c.   divide the change in velocity by the time over which the change occurs  
  d.   subtract the time needed to travel the distance by the total distance traveled  
  Hint    
      
  17.Motion occurs when an object changes its __________.  
  a.   force  
  b.   mass  
  c.   volume  
  d.   position  
  Hint    
      
  18.The direction and speed of an object is described by its __________.  
  a.   velocity  
  b.   average displacement  
  c.   average speed  
  d.   displacement  
  Hint    
      
  19.The distance between the final position and the starting position is the __________.  
  a.   velocity  
  b.   acceleration  
  c.   displacement  
  d.   differential  
  Hint    
      
  20.The SI unit of distance is the __________.  
  a.   meter  
  b.   gram  
  c.   mile  
  d.   liter  
  Hint    

 
   
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