AnswersLA-Physical Science ASpeed and Velocity

Acceleration Answers

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21
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The graph depicts the velocity and times of Elan and Anna during a race.

Question illustration
F
From 0 to 2 seconds, Anna experienced negative acceleration.
F
From 3 to 6 seconds, Elan accelerated while Anna did not.
F
From 6 to 8 seconds, Elan accelerated faster than Anna.
F
From 8 to 10 seconds, Elan experienced negative acceleration.
22
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Read the scenario.The CEOs of several tech companies form a super PAC to support a presidential candidate. The CEOs contribute millions of dollars to their super PAC.

A
send it to their chosen candidate’s campaign manager
B
give equal contributions to all presidential candidates
C
create a series of political ads for their chosen candidate
D
hire people to vote for their chosen candidate
23

most

a
advanced its goals.
s
showed no bias.
b
benefited a majority of people.
w
was a compromise.
24

greatest

Question illustration
D
Dustin → Diego → Kira
D
Dustin → Kira → Diego
K
Kira → Dustin → Diego
K
Kira → Diego → Dustin
25

Read the scenario.Darcy is running for governor. She meets with a super PAC of educators, and they are impressed with her ideas for funding schools.

A
by financing a series of ads about her ideas
B
by raising money for her campaign
C
by giving her a large sum of money
D
by paying for her campaign’s travel expenses
26

Ariana is accelerating her car at a rate of 4.6 m/s2 for 10 seconds. Her starting velocity was 0 m/s.What was her final velocity?

0
0 m/s
2
2.3 m/s
4
4.6 m/s
4
46 m/s
27

Read the scenario.A special interest group is lobbying politicians to support policies on climate change. The interest group asks a climate scientist to work for them.

A
The scientist could provide or explain research details to lawmakers.
B
The scientist could make contributions to a super PAC.
C
The scientist could teach the group how to be more persuasive.
D
The scientist could work on inventions to fix the climate problem.
28

Read the scenario.Corey has read many negative things about lobbying. He wonders whether lobbying is ethical, since it has negative effects. Mark points out that lobbyists also have some positive effects on the government. Corey asks for an example of a positive effect.

A
Lobbyists hope to make politics more entertaining to the public.
B
Lobbyists do many acts of community service.
C
Lobbyists work with law enforcement to identify illegal actions.
D
Lobbyists provide research and information to lawmakers.
29

Which graph shows a negative acceleration?

A
A graph with horizontal axis time (seconds) and vertical axis position (meters). A straight line runs from 0 seconds 0 meters upward.
Option A
B
A graph with horizontal axis time (seconds) and vertical axis position (meters). A concave line runs from 0 seconds 0 meters upward.
Option B
C
A graph with horizontal axis time (seconds) and vertical axis position (meters). A straight line runs from 0 seconds some positive number meters upward downward to some positive number of seconds 0 meters.
Option C
D
Option
Option D
30

Which statement describes super PACs?

A
They do not get involved in elections.
B
They support all candidates equally.
C
They operate the same as regular PACs but with more money.
D
They can raise an unlimited amount of money.
31

What is propaganda?

A
information used to promote a particular point of view
B
rules and regulations that apply to public interest groups
C
legislation that benefits most members of the public
D
a source of funding for lobbyist and special interest groups
32

Which equation is most likely used to determine the acceleration from a velocity vs. time graph?

A
a =
Option A
B
m =
Option B
C
a =
Option C
D
m =
Option D

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