Motion: Distance and Dsiplacment

How can you tell if an object is in motion?

• the object will look different

• I'll be able to see the forces

• It will remain in the same position

• Its position will change in relation to other objects

Displacement is

• position of object

• final position minus initial position

• distance divided by time

• initial position plus final position

Motion

• The starting point you use to describe the motion or position of an object.

• The object's distance and direction from a reference point.

• The process of changing position.

• The difference between the initial, or starting, position and the final position of an object that has moved.

Rachel walks 12 feet from her locker to her class, remembers that she forgot her calculator and walks back to her locker. Then she walks back to class. What was her displacement?

• 36 feet

• 24 feet

• 0 feet

• 12 feet

You walk from your science classroom to the office. Which of the following could be considered a reference point?

• another student walking in the hall

• the water fountain

• a mousetrap car's motion being tested in the hallway

• the calculator in your hand

This is how far you are from your starting point.

• displacement

• distance

• length

• meters

A softball player leaves the batter's box, overruns first base by 3.0 meters, and then returns to first base. Compared to the total distance traveled by the player, the player's displacement from the batter's box is:

• smaller

• larger

• the same as

Which of the following is correct?

• Initial Position = -2 m

  Final Position = 0 m

  Distance = 14 m

  Displacement = 2 m

• Initial Position = 0 m

  Final Position = -2 m

  Distance = 14 m

  Displacement = -2 m

• Initial Position = -2 m

  Final Position = 0 m

  Distance = -2 m

  Displacement = -2 m

• Initial Position = -2 m

  Final Position = 0 m

  Distance = 14 m

  Displacement = 14 m

• None are correct.

If you walk 5 meters south, 5 meters west, 5 meters north, and then 5 meters east, what is your displacement?

• 0 m

• 20 m

• 15 m

• 10 m

• 5 m

Where would the chicken end up if the chicken has a +2 displacement?

• +5 m

• +2 m

• 0 m

• +3 m