AnswersPhysical ScienceIntroduction to Motion

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1
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Which could describe the motion of an object?

A
distance is equal to 0 and displacement is equal to 10 meters
B
distance is equal to 10 meters and displacement is equal to 100 meters
C
distance is equal to 1 meter and displacement is equal to 10 meters
D
distance is equal to 10 meters and displacement is equal to 10 meters
2
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Which scenario best describes motion?

A
a ball rolling from point A to point B
B
a student living 150 miles from Chicago
C
a race track that is 100 meters long
D
a toy train in position 4 on a number line
4

What is required in order to determine whether or not an object moves?

A
distance
B
a reference point
C
standard units
D
displacement
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?

A
acting as a reference point for detecting motion
B
acting as a standard unit of measure
C
determining the displacement of the snail
D
determining how fast the snail moves
8

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 beginning of a straight track to the end
B
from the bottom of a hill to the top
C
on a sidewalk from his house to the mall
D
on a circular nature trail
9

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
drawing a picture of the library on a line diagram
B
using meters as the unit instead of miles
C
providing a reference point
D
estimating the amount of time to get to the library
10

Which describes the positions on a horizontal number line?

A
All points to the left of one are positive when one is negative.
B
All points to the right of one are positive when one is negative.
C
All points to the left of zero are negative.
D
All points to the right of zero are negative.

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