AnswersFL-2003310-Physical Science CRElectric Circuits

Electric Circuits Answers

35 verified answers1 views
1
Free Preview

Look at the circuit diagram.

Question illustration
A
one battery, two light bulbs, and three resistors
B
one battery, two switches, and three light bulbs
C
one switch, one resistor, and three light bulbs
D
one switch, one light bulb, and three batteries
2
Free Preview

When an electric circuit operates, a buzzer makes a sound. What happens to the electric charges in this circuit?

A
The electric charges move from the energy source and are used up at the switch.
B
The electric charges move from the energy source and are used up at the buzzer.
C
The electric charges move from the buzzer through the energy source and back to the buzzer.
D
The electric charges move from the energy source through the buzzer and back to the energy source.
3

Which would cause an electric circuit to lack a current?

A
open switch
B
closed switch
C
lighted bulbs
D
unlighted bulbs
4

Patty makes a table of the symbols used for the parts of an electric circuit.

Question illustration
A
Battery
B
Switch
C
Resistor
D
Bulb
5

Following the war in Iraq,

A
Saddam Hussein’s reign continued.
B
the country became more stable.
C
many warring factions made peace.
D
the nation elected a new government.
6

Jamal draws the circuit diagram shown.

Question illustration
A
one battery, two switches, two resistors
B
two batteries, three switches, two resistors
C
one battery, four switches, one resistor
D
two batteries, three switches, two resistors
7

How does a parallel circuit change when a branch is added?

A
The total resistance increases, so the current in the circuit decreases.
B
The total resistance decreases, so the current in the circuit increases.
C
The total resistance increases, so bulbs shine at a lower brightness.
D
The total resistance decreases, so bulbs shine at a higher brightness.
8

What is the main disadvantage of parallel circuits?

A
Any break in the circuit stops the flow of charges.
B
There are multiple paths for charges to flow.
C
If one bulb goes out, the other bulbs will go out.
D
They are complicated to design and build.
9

Which statement describes one feature of a closed circuit?

A
Charges do not flow.
B
Bulbs will not shine.
C
The circuit is broken.
D
The circuit is complete.
10

Chang wants to build a circuit that will light up a bulb from a flashlight, and has a battery, switch, wire, and a light bulb.Which component would Chang use as the source of energy?

A
the battery
B
the switch
C
the wire
D
the light bulb
11

Which of the following statements best describes why the United States invaded Iraq?

A
President Bush argued that Saddam Hussein had been the terrorist mastermind behind 9/11.
B
Most nations in the world wanted to invade Iraq, and the United States agreed to lead the effort.
C
After 9/11, President Bush declared war on people like Saddam Hussein who had threatened America in a terroristic way.
D
After 9/11, President Bush argued that a man like Saddam Hussein could not be trusted with WMDs.
12

Which statement best summarizes Bush’s argument in this passage?

A
The war was worthwhile, because a free Iraq will be a place for the United States to fight terrorists.
B
The war was worthwhile, because Iraqis have seen how effectively the United States fights terrorists.
C
The war was worthwhile, because it has led to democracy in Iraq, which will help deter terrorism.
13

Why did the United States invade Afghanistan in 2001?

A
The US wanted to restore order to Afghanistan after the president was killed in a coup.
B
The US wanted to prevent the Soviet Union from taking over Afghanistan.
C
The terrorist group responsible for the 9/11 attacks was allowed to operate out of Afghanistan.
D
The Taliban had stripped away women’s rights and were committing human-rights offenses.
14

Which of the following statements best describes what is shown on this graph?

A
After a massive invasion, US troop levels declined from 2001 to 2008.
B
A few US troops in Afghanistan were followed by a massive surge and then a withdrawal.
C
Few US troops were present during the war’s early years, followed by a steady climb in their numbers.
15

When President Bush declared a “war on terror” after 9/11, how did this statement change US foreign policy?

A
For the first time, the United States would strike at terrorist groups, such as al-Qaeda.
B
The United States would no longer distinguish between terrorist groups, such as al-Qaeda, and the countries that harbored them.
C
The United States reserved the right to act in self-defense against terrorist groups.
D
The United States announced it would invade each member of the “axis of evil,” until they all gave up their WMDs.
16

Which statement best describes life for women under Taliban rule?

A
Women enjoyed more freedom than in most Islamic countries.
B
Women were given some freedom, including the right to vote.
C
Women were excluded from public life and could not go to school or hold a job.
17

Determine whether the following descriptions of the US-led effort in Afghanistan are true or false.✔ TrueFalseThe Taliban government could not withstand coalition airstrikes and fell quickly.

A
True
B
False
18

Why did President Bush list Iraq among the countries in the “axis of evil”?

A
He believed Iraq had directly ordered the 9/11 attacks on the United States.
B
He believed Iraq had helped Osama bin Laden organize the terrorist group al-Qaeda.
C
He believed Iraq had WMDs that Hussein might give to terrorists.
19

Why did the United States invade Iraq in 2003? Check all the boxes that apply.

A
Bush believed Saddam and Iraq had WMDs.
B
Bush argued that Iraq had previously supported terrorist organizations.
C
The United States claimed that Iraq was not fully cooperating with UN weapons inspectors.
D
The United States claimed Iraq had directly ordered the 9/11 attacks.
20

What challenges did the United States face in Iraq? Check all that apply.

A
The US had trouble gaining trust and establishing relationships with the people.
B
An anti-US insurgency fought against American forces.
C
WMDs were found throughout Iraq.
D
Two different groups of Iraqis fought against each other in a civil conflict.

Did you find these answers helpful?

More from this Course

Quiz
15 verified answers

Electric Circuits

Quiz
14 verified answers

Magnets and Magnetism

Quiz
9 verified answers

Electric Circuits