AnswersMad 2017 Phy Sci B -33 SSIntroduction to Forces

Structuring an Effective Argument Answers

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1
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Jill is pushing a box across the floor. Which represents the upward force perpendicular to the floor?

A
Fp
B
Ff
C
FN
D
Fg
2
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Emmett is lifting a box vertically. Which forces are necessary for calculating the total force?

A
Fp, Ff, and Fg
B
Fp and FN
C
Fp, FN, and Ff
D
Fp and Fg
3

Which best explains parallel forces?

A
left and right forces that can be added together
B
right and upward forces that cancel each other out
C
addition of parallel forces that cannot result in a negative force
D
left and downward forces that cancel each other out
4

Diego is trying to lift a piano to the second floor of his house. Diego uses a pulley system and gives a big lift to the piano.The piano moves upward, then stops, and then it starts to fall to the ground. (The direction of the force of gravity is negative.)

A
positive force → balanced force → negative force
B
negative force → balanced force → positive force
C
positive force → unbalanced force → negative force
D
negative force → unbalanced force → positive force
5

Which force best represents Fg?

A
A weight lifter is pushing a barbell upward with a force of 90 N.
B
The weight of a barbell acting on a weight lifter is 80 N.
C
The amount of upward force of a table on a box is 25 N.
D
A box on a rough table has difficulty sliding past 25 N of force.
6

Which is the best example of forces acting in the same direction?

A
a boy lifting his chest off the ground during a pushup
B
two football players pushing a tackling sled
C
a person pulling out a garden hose from its reel
D
two dogs playing tug-of-war with a rope
7

An object is moving across a surface, but it does not gain or lose speed. Which best describes the object’s force?

A
The net force is positive.
B
The net force is zero.
C
The positive force is greater than the negative force.
D
The negative force is greater than the positive force.
8

Jasper and Gemma are going to play on a teeter totter. Gemma gets on first. When Jasper gets on, Gemma moves into the air, but she does not move to the top.

Question illustration
A
The forces are balanced because Jasper weighs the same as Gemma.
B
The forces are unbalanced because Jasper weighs the same as Gemma.
C
The forces are balanced because Jasper weighs more than Gemma.
D
The forces are unbalanced because Jasper weighs more than Gemma.
9

Haley is trying to pull an object upward. The below forces are acting on the object.Fp= 5500 NFg= 6000 N

A
← 500 N
B
→ 500 N
C
↑ 500 N
D
↓ 500 N
10

Which best describes two counteracting forces on an object?

A
using a dolly to push a box to another location
B
two children pulling apart a wishbone
C
a group of dogs pulling a dogsled across ice
D
two people pushing a broken-down car up the road
11

Vicksburg finally fell after

A
the Union navy attacked the city.
B
the Union army invaded the city.
C
the city endured a long siege.
D
the Confederacy lost the war.
12

What did the Union accomplish by capturing Vicksburg and New Orleans?

A
It won the war against the Confederacy.
B
It divided the Confederacy.
C
It seized control of the Missouri River.
13

What reason does King give in this passage to explain how Americans have failed to come together for equality?

A
He points out that Americans have proudly supported the principles of democracy
B
He points out that the Founding Fathers’ dream was a noble one.
C
He points out that slavery and segregation show that everyone is not considered equal.
14

What evidence supports the idea that there is less equality in the percentage of people from each group registered to vote?

A
The gap between the percentage of Black Americans and Whites registered to vote increased from 2014 to 2020.
B
The gap between the percentage of Black Americans and Whites registered to vote was similar from 2014 to 2020.
C
A smaller percent of Black Americans were registered to vote in 2020 than in 2014.
15

Based on these two sources, what evidence shows that King’s dream has not yet been achieved?

A
The percentage of people who are Black American is larger than other minority groups.
B
Black Americans make up the largest percentage of Congress at 76 percent.
C
Black Americans make up 13.6 percent of the population but only 9.2 percent of Congress.
16

Giving your reason:

A
on the other hand
B
to begin with
C
based on
17

72.383.6✔ 95.1

A
72.3
B
83.6
C
95.1
18

How do the percentages in 2021 compare to those in 1980?

A
The difference between the groups increased and then decreased.
B
The difference between the two groups was the same in 2021 as 1980.
C
There is more of a difference between the two groups in 2021 than in 1980.
D
There is less of a difference between the two groups in 2021 than in 1980.
19

How does evidence in this graph support a claim that King’s dream of equality is being achieved in education between these two groups?

A
The percent of Black Americans with a diploma has remained steady with Whites.
B
The percent of Black Americans with a diploma is getting closer to that of Whites.
C
The percent of Black Americans with a diploma has decreased over time.
D
Both groups have an equal number of people with diplomas.
20

How does evidence in this graph support a counterclaim that King’s dream of equality is not being achieved in education?

A
More Black Americans are earning high school diplomas than ever before.
B
Both groups will one day need to have the same number of people with diplomas.
C
Fewer Black Americans receive high school diplomas than Whites.
D
Both groups have an equal number of people with high school diplomas.

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