AnswersWA-Physical Science BIntroduction to Motion

Introduction to Motion Answers

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Keisha told her friend that she can get to the town library by walking one mile east, turning left, and then walking a half a mile north.Which best describes how Keisha can improve these instructions to better help her friend find the library?

A
using meters as the unit instead of miles
B
drawing a picture of the library on a line diagram
C
estimating the amount of time to get to the library
D
providing a reference point
4

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
7

Nancy and Hiyang are training for a race. They entered some of their training notes in a chart.Which information should be added to the chart in order find out who ran a greater distance?

Question illustration
A
the time spent running each day
B
the reference point used each day
C
the units used to measure distance each day
D
the location used by the runners each day
8

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?

A
determining how fast the snail moves
B
acting as a standard unit of measure
C
determining the displacement of the snail
D
acting as a reference point for detecting motion
9

Two cars started at the same position and were driven through a city using different streets. The red car traveled north 2 miles, then east 4 miles, and then south 6 miles. The green car traveled south 4 miles and then east 4 miles. Both cars ended at the same location.Which best compares the motion of the cars?

A
The red car traveled a shorter distance, but the displacement of the cars was equal.
B
The green car traveled a shorter distance, but the displacement of the cars was equal.
C
The green car had a shorter displacement, but the distance traveled by the cars was equal.
D
The red car had a shorter displacement, but the distance traveled by the cars was equal.
10

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

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