AnswersAA-F26 Physical ScienceIntroduction to Motion

Introduction to Motion Answers

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A
A train moves uphill as it travels in a straight path.
A
A person walks 2 miles north and 2 miles west.
A
A ball rolls from the top to the bottom of a hill.
A
A race car starts and ends at the same point on a track.
4

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
5

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
7

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?

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

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.
9

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

a
a reference point
d
distance
d
displacement
s
standard units
11

What did President Davis’s decisive response lead to at the start of the war?

A
The creation of the Confederacy
B
The Union surrender at Fort Sumter
C
The secession of more Southern states
13

Argument: People should travel to Mars because only human explorers can answer many important questions about the planet.Counterclaim: Robots can collect data and study Mars. Robots have already discovered ice below the planet’s surface.Based on the argument and counterclaim, which statement is an effective rebuttal?

A
It would be much better to have the human explorers even though robots have been helpful.
B
Research shows that space travel can still have dangerous side effects.
C
NASA researchers have shown that humans are faster than robots and make quicker decisions.
14

Which facts, details, or quotations would make this argument stronger? Check all that apply.

A
a quotation from NASA
B
a detail about the atmosphere of Mars
C
a statistic about how long it would take to travel to Mars
D
how long communication with people on Mars would take
E
a statistic about how much money a journey to Mars would cost
15

Use the drop-down menus to analyze how this introduction is organized. | How does this introduction "hook" the audience? | Which part of the thesis statement gives the reason for the writer's opinion?

A
“People should not travel to Mars”
B
“space exploration can harm human health”
C
“Space exploration may provide important scientific data”

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