Intro to Motion Flashcards
Describe a situation with a displacement of zero.
Riding on a Ferris wheel whose entrance and exit are the same, walking exactly one lap around a racetrack, walking around the block, starting from and ending at the same house.
Benjamina started her walk from the front door of her ground floor apartment. She walked 6 meters to the corner of the building and then turned the corner and walked 10 meters to her friend’s apartment. Identify the difference between the distance she walked and her displacement.
What did you include in your response? Check all that apply.
Displacement is the change in position.
Distance is the total distance from the starting point to the ending point.
Displacement includes the distance and the direction.
Calculate the final displacement from 0 if an object first moves 3 cm to the left and then 5 cm to the right.
The final displacement is 2 cm to the right .
Explain how to identify a starting position on a line.
Pick a reference point on the line to be the zero position. Determine the direction and measure the distance from zero in standard units.
An object starts at position 12 on a horizontal line with a reference point of 0. What is the position of the object if it moves 14 units to the left?
–2
Which scenario best describes motion?
a) a toy train in position 4 on a number line
b) a race track that is 100 meters long
c) a ball rolling from point A to point B
d) a student living 150 miles from Chicago
c) a ball rolling from point A to point B
An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the right. The displacement of the object is…?
5
Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mark on the sidewalk next to the snail.
What will Julie use the mark for initially?
Acting as a reference point for detecting motion
Manny walked a total of 3 miles. The reference point used to calculate the total distance that he walked was the same as the ending point.
Which describes where Manny most likely walked?
a) from the bottom of a hill to the top
b) on a circular nature trail
c) on a sidewalk from his house to the mall
d) from the beginning of a straight track to the end
A circular track begins at 0 meters and has a total distance of 100 meters. Juliet starts at the 10-meter mark while practicing for a race.
After running 45 meters, how far is she from the beginning of the track?
55 meters
What is required in order to determine whether or not an object moves?
A reference point
A toy car is placed at 0 on a number line. It moves 9 cm to the left, then 4 cm to the right, and then 6 cm to the left. The total distance the toy car traveled is how many cm?
19
Which scenario best describes an object with a displacement of zero?
A train moves uphill as it travels in a straight path.
A person walks 2 miles north and 2 miles west.
A ball rolls from the top to the bottom of a hill.
A race car starts and ends at the same point on a track.
A race car starts and ends at the same point on a track.
Displacement is the change in position from the what?
Reference point
How far an object travels.
Distance.
