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Quizzes Quiz
Motion and Speed

Practice Test
  1.Average speed is found by __________.  
  a.   multiplying total distance traveled by the total time  
  b.   dividing total distance traveled by the total time  
  c.   multiplying the displacement by the total time spent  
  d.   dividing the displacement by the total time spent  
  2.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.   acceleration is calculated by dividing the force exerted on an object by the mass of the object  
  c.   an object will remain at rest or keep moving unless a force acts on it  
  d.   when a force acts on an object, its acceleration is in the same direction as the force  
  3.The direction and speed of an object is described by its __________.  
  a.   velocity  
  b.   average speed  
  c.   average displacement  
  d.   displacement  
  4.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.   8 km/h  
  b.   2 km/h  
  c.   2.67 km/h  
  d.   4 km/h  
  5.__________ is the distance an object travels per unit of time.  
  a.   Velocity  
  b.   Displacement  
  c.   Speed  
  d.   Acceleration  
  6.__________ is the speed of an object at any instant of time.  
  a.   Velocity  
  b.   Average speed  
  c.   Acceleration  
  d.   Instantaneous speed  
  7.The SI unit of distance is the __________.  
  a.   gram  
  b.   liter  
  c.   meter  
  d.   mile  
  8.The distance between the final position and the starting position is the __________.  
  a.   differential  
  b.   acceleration  
  c.   displacement  
  d.   velocity  
  9.Which of the following is not an acceleration?  
  a.   riding your bike faster when you ride down a hill  
  b.   stopping your bike at an intersection  
  c.   riding your bike straight down the street at a constant speed  
  d.   slowing your bike ride so you can make it up a hill  
  10.The __________ is the combination of all the forces acting on an object.  
  a.   direction of motion  
  b.   force pair  
  c.   inertia  
  d.   net force  
  11.To calculate the distance traveled continuously in a straight line, __________.  
  a.   subtract the time needed to travel the distance by the total distance traveled  
  b.   subtract final position from starting position  
  c.   divide the distance traveled by the time needed to travel the distance  
  d.   divide the change in velocity by the time over which the change occurs  
  12.Motion occurs when an object changes its __________.  
  a.   position  
  b.   mass  
  c.   volume  
  d.   force  
  13.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.   10.5 km  
  b.   2.8 km/h  
  c.   11 km  
  d.   10 km  
  14.Any change over time is called a(n) __________.  
  a.   rate  
  b.   velocity  
  c.   speed  
  d.   acceleration  
  15.Which of the following devices is used to indicate instantaneous speed?  
  a.   compass  
  b.   odometer  
  c.   speedometer  
  d.   stopwatch  
  16.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.   2.18 h  
  b.   3.14 h  
  c.   5.3 h  
  d.   3.52 h  
  17.Changes in which of the following of Earth's layers cause earthquakes?  
  a.   magnetosphere  
  b.   stratosphere  
  c.   core  
  d.   lithosphere  
  18.__________ is the change in velocity divided by the time needed for the change to occur.  
  a.   Average velocity  
  b.   Displacement  
  c.   Speed  
  d.   Acceleration  
  19.__________ measures an object's tendency to resist changing its motion.  
  a.   Acceleration  
  b.   Inertia  
  c.   Mass  
  d.   Gravity  
  20.The distance between an object and a reference point is the object's __________.  
  a.   displacement  
  b.   velocity  
  c.   position  
  d.   neutral point  

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