Question

How do catalysts affect a chemical reaction?(1 point)
Responses

provide activation energy

increase activation energy

lose activation energy

lower activation energy
Answer
What happens during rusting of an iron nail?(1 point)
Responses

Sulfur, iron, and oxygen combine to form iron sulfoxide.

Iron and sulfur combine to form iron sulfide.

Iron and oxygen combine to form iron oxide.

Sulfur and oxygen combine to form a sulfur dioxide coating.
Answer
What does the forward arrow in a chemical equation mean?(1 point)
Responses

The reaction yields something.

The reaction proceeds quickly.

The reaction is reversible.

The reaction proceeds slowly.
Answer
Which kind of reaction is photosynthesis?(1 point)
Responses

light-independent

endothermic

temperature-independent

exothermic
Answer
Photosynthesis requires which kind of energy?(1 point)
Responses

thermal energy

mechanical energy

light energy

heat energy
Answer
How do you show the group of digits that repeat in a repeating decimal?(1 point)
Responses

by putting a bar over them

by printing them in italics

by underlining them

by putting them in parentheses
Answer
How many digits long could the repeating cycle of a repeating decimal be if the denominator of the rational number is 7?(1 point)
Responses

any finite length

up to six digits long

up to seven digits long

infinitely long
Answer
Convert 0.27
to a rational number in simplest form.(1 point)
Responses

27/100

1/27

3/11

27/99
Answer
To convert 0.264 to a rational number, you would set x equal to 0.264 and then multiply both sides of the equation by what number?(1 point)
Responses

10

100

1,000
Answer
If a repeating decimal has a repeating cycle of three digits, it will convert to a rational number with what denominator? (1 point)
Responses

100

99

1,000

999
Answer
How many digits are in the repeating cycle of 17/27
Answer
What are the three main operating systems?

(1 point)
Responses

Chrome, Firefox, and Bing

Amazon, Facebook, and Apple

Microsoft, Google, and Adobe

Windows, macOS, and Linux

Answer
Carla wants to learn more about how CPUs work. Which of these videos would be the MOST useful to her?

(1 point)
Responses

“How Input Devices Work”

“Storage Devices for Beginners”

“Computer Output Devices 101”

“Introduction to Computer Processing”
Answer
Which of these is an example of an input device?

(1 point)
Responses

a mouse

a screen

a printer

a 3-D printer
Answer
Which part of the computing process occurs before storage is used?

(1 point)
Responses

input

networking

output

updating
Answer
What is the main difference between the earliest computers and modern computers?

(1 point)
Responses

Early computers didn’t use electricity.

Early computers were very slow.

Modern computers don’t use electricity.

Modern computers are physically larger.
Answer
Which of the following statements BEST describes a computer?

(1 point)
Responses

It is a thinking machine.

It is a mathematical machine.

It is a mechanical converter.

It is a quantum technology.
Answer
Which statement is MOST accurate?

(1 point)
Responses

Faster memory is more expensive.

All kinds of memory cost the same.

Slower memory is easier to find.

In the cloud, memory is free.
Answer
Which of these is faster than RAM?

(1 point)
Responses

file paths

L caches

input devices

cloud memory
Answer
What is the MAIN advantage of solid-state drives?

(1 point)
Responses

They are very easy to fix.

They are very affordable.

They are very fast.

They are very secure.
Answer
Which of these BEST describes a built-in solid-state drive?

(1 point)
Responses

an input device

an output device

a storage device

a processing device
Answer
What is a computer’s primary memory MOSTLY used for?

(1 point)
Responses

communicating with peripherals

loading the operating system

providing short-term storage

managing the solid-state drive
Answer
Which of these is an output device?

(1 point)
Responses

a 3-D printer

a keyboard

a mouse

a camera
Answer
Which computing component is responsible for coordinating memory management?

(1 point)
Responses

the hardware

the operating system

the applications

the user
Answer
What is the MAIN advantage of a hard drive?

(1 point)
Responses

It offers the fastest way to access data.

It doesn’t require magnetization.

It is the most secure storage method.

It is very affordable.
Answer
What is the difference between hardware and software?

(1 point)
Responses

Software is physical; hardware is not.

Hardware is physical; software is not.

Software is open-source; hardware requires a license.

Hardware is open-source; software requires a license.
Answered by GPT 3.5
lower activation energy
Answered by GPT 3.5
Iron and oxygen combine to form iron oxide.
Answered by GPT 3.5
The reaction is reversible.
Answered by GPT 3.5
endothermic
Answered by GPT 3.5
light energy
Answered by GPT 3.5
by putting a bar over them
Answered by GPT 3.5
up to six digits long
Answered by GPT 3.5
27/100
Answered by GPT 3.5
1,000
Answered by GPT 3.5
999
Answered by GPT 3.5
The repeating cycle of 17/27 is 1 digit long.
Answered by GPT 3.5
Windows, macOS, and Linux
Answered by GPT 3.5
“Introduction to Computer Processing”
Answered by GPT 3.5
a mouse
Answered by GPT 3.5
input
Answered by GPT 3.5
Modern computers are physically larger.
Answered by GPT 3.5
It is a mathematical machine.
Answered by GPT 3.5
Faster memory is more expensive.
Answered by GPT 3.5
L caches
Answered by GPT 3.5
They are very fast.
Answered by GPT 3.5
a storage device
Answered by GPT 3.5
providing short-term storage
Answered by GPT 3.5
a 3-D printer
Answered by GPT 3.5
the operating system
Answered by GPT 3.5
It is very affordable.
Answered by GPT 3.5
Hardware is physical; software is not.