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Quizzes Quiz
Motion and Speed

Practice Test
  1.__________ is the distance an object travels per unit of time.  
  a.   Velocity  
  b.   Acceleration  
  c.   Displacement  
  d.   Speed  
  2.__________ is the speed of an object at any instant of time.  
  a.   Average speed  
  b.   Velocity  
  c.   Instantaneous speed  
  d.   Acceleration  
  3.Which of the following devices is used to indicate instantaneous speed?  
  a.   compass  
  b.   stopwatch  
  c.   speedometer  
  d.   odometer  
  4.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.   3.52 h  
  c.   5.3 h  
  d.   2.18 h  
  5.Changes in which of the following of Earth's layers cause earthquakes?  
  a.   core  
  b.   lithosphere  
  c.   stratosphere  
  d.   magnetosphere  
  6.The SI unit of distance is the __________.  
  a.   liter  
  b.   gram  
  c.   mile  
  d.   meter  
  7.Which of the following is not an acceleration?  
  a.   slowing your bike ride so you can make it up a hill  
  b.   stopping your bike at an intersection  
  c.   riding your bike faster when you ride down a hill  
  d.   riding your bike straight down the street at a constant speed  
  8.Forces that cancel each other are called __________ forces.  
  a.   balanced  
  b.   neutral  
  c.   null  
  d.   inactivated  
  9.Motion occurs when an object changes its __________.  
  a.   volume  
  b.   mass  
  c.   force  
  d.   position  
  10.__________ measures an object's tendency to resist changing its motion.  
  a.   Acceleration  
  b.   Gravity  
  c.   Inertia  
  d.   Mass  
  11.Any change over time is called a(n) __________.  
  a.   velocity  
  b.   rate  
  c.   acceleration  
  d.   speed  
  12.The distance between an object and a reference point is the object's __________.  
  a.   displacement  
  b.   neutral point  
  c.   velocity  
  d.   position  
  13.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.   7.1 km north  
  c.   7.1 km south  
  d.   3.7 km south  
  14.The __________ is the combination of all the forces acting on an object.  
  a.   net force  
  b.   force pair  
  c.   direction of motion  
  d.   inertia  
  15.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.   11 km  
  c.   10.5 km  
  d.   10 km  
  16.A(n) __________ is a push or a pull that one body exerts on another.  
  a.   motion  
  b.   acceleration  
  c.   force  
  d.   velocity  
  17.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  
  18.__________ is the change in velocity divided by the time needed for the change to occur.  
  a.   Acceleration  
  b.   Displacement  
  c.   Speed  
  d.   Average velocity  
  19.The direction and speed of an object is described by its __________.  
  a.   displacement  
  b.   average displacement  
  c.   velocity  
  d.   average speed  
  20.Average speed is found by __________.  
  a.   multiplying the displacement by the total time spent  
  b.   multiplying total distance traveled by the total time  
  c.   dividing the displacement by the total time spent  
  d.   dividing total distance traveled by the total time  

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