Learning on a Loop / Author's Purpose

Chaotic Chef Quiz

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1/10

What is the author's purpose in writing this passage?

to explain the scientific concepts behind roller coasters

to argue for the best way to build faster roller coasters

to describe ways to create faster roller coasters

Right!

Let's move on to the next question

2/10

What is the author's purpose for including the example of pedaling a bike up and down a hill in the section "Fulfill Your Potential"?

to compare the action of bikes with roller coasters

to give a familiar example to explain the concept

to contrast roller coasters and bicycles

Right!

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3/10

What does the diagram of the roller coaster illustrate in the text?

the relationship between kinetic and potential energy

the force of gravity between the cars

the amount of change between the speed of the cars

Right!

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4/10

Which detail from the text supports the idea that the purpose for the diagram is to illustrate the relationship between kinetic and potential energy.

cars must be pulled to the top of a tall hill to build up potential energy.

Gravity exerts a downward force on the coin and pulls it to Earth.

the greatest kinetic energy, and the least potential energy

Right!

Let's move on to the next question

5/10

What is the author's purpose for the rhetorical question in the first paragraph of the section "The First Law"?

to provide an opportunity to explain Newton's First Law.

to start a discussion about physicist Isaac Newton

to offer readers a chance to answer the question

Right!

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6/10

Why does the author include technical words like gravity, acceleration, potential energy, and kinetic energy?

to explain how science is used to understand roller coasters

to persuade us that science and roller coasters go together

to argue that science is important to roller coasters

Right!

Let's move on to the next question

7/10

Which detail from the text best supports the idea that the author's purpose is to explain how science is used to understand roller coasters?

It is a thrill to know how gravity, acceleration, inertia, and friction make a roller coaster work.

The pushes, pulls, and stomach flips that make a coaster ride so exciting result from acceleration.

A roller coaster's cars are pulled to the top of the first hill by a motorized chain. . .

Right!

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8/10

The illustration's purpose is to show how the tracks control the speed.

The illustration's purpose is to show potential and kinetic energy.

Right!

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2/10

How does the author's use of words such as "imagine," "fear," and "anticipation" achieve their purpose in the introduction to the passage?

these words help explain the science of roller coasters

these words create a hook to interest the reader

these words add to the reader's fear of roller coasters

Right!

Let's move on to the last question

10/10

Review the text. How does the author develop their purpose in the text?

by explaining how roller coasters developed using chronological dates.

by providing scientific descriptions of how roller coasters work

by using illustrations to show the process by which roller coasters work

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