Study

Distance and displacement

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  • A tree along a highway can be used as a reference point for moving objects. (T/F)
    True
  • We can describe a moving object by using anything that stays in place as _______________.
    Reference point
  • An object is in motion if it changes position relative to
    a reference point
  • Taylor rides her bike 20 m North, then rides the bike 15 m back. What is her displacement?
    5 m
  • David walks 3 m North, and then turns back and walks 3 m South. What is his displacement?
    0 m
  • When you change position you are in motion (T/F).
    True
  • Paul went north 5 miles, and then west 3 miles and finally south 2 miles. What is its distance?
    10 miles
  • Streets,bridges, traffic lights and buildings are example of reference point (T/F).
    True
  • Jack walks 3 km North, and then turns eastand walks 4 km. What is the total distance?
    7 km
  • How far an object has traveled/moved? (distance / displacement)
    distance
  • Logan ran 10 km North and then ran back 15 km South. What is his distance?
    25 km
  • A place or object used for comparison to determine if another object is in motion is called a
    Reference point
  • You can tell that an object is in motion relative to a
    Reference point
  • Victor runs exactly5 laps around a 400 m track. What is his distance?
    2000 m
  • Sue runs 2 miles South then turns around and runs 3 miles North. What is her displacement?
    1 mile
  • Jermaine runs exactly 2 laps around a 400 meter track. What is his displacement?
    0 miles
  • Ray runs 30 feet North, 30 feet West and then 30 feet South. What is his distance?
    90 feet
  • Ray runs 30 feet North, 30 feet West and 30 feet South. What is his displacement?
    30 feet West
  • The best reference points are stationary (not moving). (T/F)
    True
  • What is the process of changing position?
    Motion
  • Living things around you can be used as reference points (T/F).
    True
  • There is always a change in position when an object moves (T/F)
    True