Fairground Physics , livre ebook

Nomad Press - Angie Smibert

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146 pages

English

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Head to the fair to learn about physics with cool trivia facts, hands-on science activities, and lots of accessible science!Where can you experience the laws of motion, the fun of physics, and the chemistry of cotton candy? The fair! In Fairground Physics: Motion, Momentum, and Magnets with Hands-On Science Activities, readers ages 9 to 12 learn about the forces that rule our world and everything in it by examining the rides, games, and even food you might find at a county fair. Ride the carousel and discover centripetal force. Throw darts at a balloon and learn about projectile science. Hop on a roller coaster and name the types of energy involved in whizzing you around the track and upside down!Fun at the fair extends into real-life, hands-on learning that kids will keep front of mind even as they swing through the air and guzzle down some funnel cakes. This book is full of text-to-self and text-to-world connections! Real world science is a great way to engage kids with learning about science, and it doesn't get much more real than at a fairground. By using examples that most kids have experienced, Fairground Physics both captures the imagination and provides a foundation of reality on which to base explanations of complex scientific concepts. Force, motion, and gravity affect everyone whether we take notice or not, and understanding how the laws of physics work is an essential part of understanding the physical underpinnings of our very existence. Fairground Physics engages readers through hands-on activities, such as designing a roller coaster and making ice cream, along with interesting trivia, fascinating sidebars, and links to online material that supports and supplements learning. About the Build It Science set and Nomad PressFairground Physics is part of a set of four Build It Science books that explore accessible science. The other titles in this set are Climate Change, Backyard Biology, and Kitchen Chemistry. Nomad Press books in the Build It series integrate content with participation. Combining content with inquiry-based projects stimulates learning and makes it active and alive. Nomad's unique approach simultaneously grounds kids in factual knowledge while allowing them the space to be curious, creative, and critical thinkers.All books are leveled for Guided Reading level and Lexile and align with Common Core State Standards and Next Generation Science Standards. All titles are available in paperback, hardcover, and ebook formats.

Informations

Publié par	Nomad Press
Date de parution	20 mars 2020
Nombre de lectures	0
EAN13	9781619308893
Langue	English
Poids de l'ouvrage	11 Mo

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Nomad Press
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Copyright 2020 by Nomad Press. All rights reserved.
No part of this book may be reproduced in any form without permission in writing from the publisher, except by a reviewer who may quote brief passages in a review or for limited educational use . The trademark Nomad Press and the Nomad Press logo are trademarks of Nomad Communications, Inc.
Educational Consultant, Marla Conn
Questions regarding the ordering of this book should be addressed to Nomad Press 2456 Christian St., White River Junction, VT 05001 www.nomadpress.net
Printed in the United States.
CONTENTS
What Science Can You Find at the Fair?
Introduction    Welcome to the Fair!
Chapter 1    A Little History
Chapter 2    Make Some Motion
Chapter 3    Feel the Force
Chapter 4    Got Energy?
Chapter 5    Have Some Heat
Chapter 6    Ride the Waves
Glossary • Metric Conversions Resources • Essential Questions • Index

Interested in Primary Sources? Look for this icon.
Use a smartphone or tablet app to scan the QR code and explore more! Photos are also primary sources because a photograph takes a picture at the moment something happens. You can find a list of URLs on the Resources page. If the QR code doesn’t work, try searching the internet with the Keyword Prompts to find other helpful sources.
fairground physics
WHAT SCIENCE CAN YOU FIND AT THE FAIR?

Introduction
WELCOME TO
THE FAIR!

Every year, millions of people flock to fairgrounds and amusement parks seeking thrills, adventure, and maybe even some tasty food. And every year, engineers try to make taller, faster, and twistier rides—all in the name of fun!
Imagine you’re strapped into a new ride—the Maxx Force. Compressed air launches the roller coaster forward, slamming you back into the padded restraints. In two seconds, you rocket up the first loop at 78 miles per hour. For a moment, you feel weightless—and then your stomach drops. The cars (and riders!) flip around—twice—at a gut-wrenching 60 miles per hour.

ESSENTIAL QUESTION
What makes fairgrounds fun?

WORDS TO KNOW
engineer: someone who uses science, math, and creativity to design and build things.
compressed air: air under more pressure than the outside air.

WORDS TO KNOW
invert: to turn upside down.
physics: the study of physical forces, including matter, energy, and motion, and how these forces interact with each other.
force: a push or pull that changes an object’s motion.
gravity: a force that pulls all objects toward the earth.
microgravity: when something acts as though there is no gravity because it is in free fall or in orbit around the earth.
free fall: the motion of an object being acted upon only by the force of gravity, as if it were falling from the sky.
energy: the ability to do work or cause change.
universe: everything that exists, everywhere.
matter: what an object is made of. Anything that has weight and takes up space.
atom: the smallest particle of a substance that can exist by itself or be combined with other atoms to form a molecule.
BCE: put after a date, BCE stands for Before Common Era and counts years down to zero. CE stands for Common Era and counts years up from zero. This book was published in 2020 CE.
vacuum: a space with nothing in it, not even air.

The FASTEST roller coaster is the FORMULA ROSSA at Ferrari World in the United Arab Emirates. The coaster can reach speeds of 149 MILES PER HOUR .
Before it glides home, the roller coaster inverts three more times—and breaks as many records. The newest roller coaster at Six Flags Great America in Gurnee, Illinois, set the records for fastest launch, tallest double inversion, and fastest inversion. Coaster fans are lining up to try the Maxx Force!
What makes a ride such as this fun—and even a little bit scary? Physics! In one roller coaster ride, you’ve taken a master class in physics. You’ve experienced the force of gravity. You even felt microgravity in free fall, much as astronauts do! You’ve created and expended energy. You’ve moved in straight lines, loops, and twists.
In fact, all the rides at the fairground or amusement park depend on physics. So do the foods, lights, music, and games! To design rides, engineers have to understand motion, forces, and energy in order to make the rides safe and fun.

Want to see what it’s like to ride Maxx Force? This animation puts you in the front seat of the coaster!

Coasterforce Maxx Force
WHAT IS PHYSICS?
Physics is the study of how the universe works. We humans have been pondering this for thousands of years. Ancient Greek philosophers tried to explain what makes up matter, as well as how it moves. They observed the world around them and offered reasoned explanations. One early philosopher even correctly described matter as being made up of atoms.

The tallest roller coaster is the KINGDA KA at Six Flags New Jersey. The coaster is 456 FEET TALL .
However, a more famous thinker, named Aristotle (384–322 BCE) rejected this idea. He didn’t think a vacuum —such as the empty spaces between the atoms—could exist. He proposed that objects needed a force behind them to move—and keep moving. For example, if someone threw a ball, it kept moving, Aristotle reasoned, because air rushed in behind the ball to keep a vacuum from forming. His inaccurate ideas about motion ruled physics until the sixteenth century.

Does this ride look fun to you?

WORDS TO KNOW
theory: an unproven idea that explains why something is the way it is.
physicist: a scientist who studies physics.
Scientific Revolution: a series of events and discoveries between the 1500s and 1700s that marked the emergence of modern science.
Newtonian physics: the science that uses the laws of motion and gravitation formulated in the late seventeenth century by English physicist Sir Isaac Newton to explain how matter behaves.
electromagnetism: magnetism created by a current of electricity.
radiation: energy that comes from a source and travels through something, such as the radiation from an X-ray that travels through a person.
subatomic: relating to the inside of an atom.
That’s when Galileo Galilei (1564–1642) did something radical. He performed experiments to test his ideas about motion. In his most famous experiment, Galileo claimed to have dropped two objects—one heavy, one light—from the top of the Leaning Tower of Pisa in 1589. Both objects reached the ground at the same time.

ALL OBJECTS on Earth FALL at the same rate.
Although some scholars do not believe that Galileo actually performed this experiment, Galileo argued—correctly!—that objects free fall at the same rate, no matter their size. Through other experiments, Galileo also concluded that an object in motion continues to move in a straight line until it’s stopped by some force. Both theories are still accepted today!
Throughout the next few hundred years, other physicists built on Galileo’s ideas—and used experiments to prove them. This period is known as the Scientific Revolution.

Can you see why this would be a good place to test Galileo’s theory of free fall?

Watch Apollo astronaut David Scott repeat Galileo’s experiment on the moon.

hammer feather moon

Now, watch physicist Brian Cox repeat the same experiment in a vacuum chamber at NASA’s Space Power Facility in Cleveland, Ohio. Can you reproduce the experiment? Why do scientists continue to repeat experiments after a concept has been proved or disproved?

Brian Cox BBC vacuum
Sir Isaac Newton (1642–1727) improved on Galileo’s laws of motion and discovered gravity. (We’ll discuss the laws of motion in more detail when we explore the bumper cars!)
According to Newton’s laws of gravity, every mass in the universe is attracted to every other mass. That attraction is called gravity. Its pull depends on the size of the objects and the distance between them. Newton’s laws of both motion and gravity formed the basis of what’s often called classical or Newtonian physics. We still study this today.
Since Newton, other physicists have made discoveries about electromagnetism, light, heat, radiation, and other forces. By the late nineteenth and early twentieth centuries, physicists focused more and more on matter and energy at a very small scale—the subatomic level.

WORDS TO KNOW
quanta: in quantum physics, a specific amount of energy. Plural is quantum.
quantum physics: an area of physics founded on the idea that light energy is made of different packets of energy.
All matter is made up of atoms, and atoms are composed of even smaller particles. Physicists discovered that matter and energy behave in strange, even whacky ways at the particle level. They found that energy, for instance, isn’t a smooth spectrum or flow. Energy comes in packets called quanta. These new discoveries, which came at the beginning of the twentieth century, led to a new branch of physics called quantum physics.
Even in the quirky world of quantum physics, though, physics boils down to the study of matter and energy. In fact, that’s what physicists think the universe is made of. Matter is anything that has mass and takes up space. It can be the smallest particle in an atom, a galaxy, or anything in between. Energy can exist in many forms. Energy is the ability to do work, such as move a roller coaster up a hill or split an atom. Physicists study how matter and energy work together.
Any matter that is in motion has energy, which brings us back to fairgrounds and amusement parks. Everything is in some kind of motion, from the spinning Ferris wheel to the frying funnel cake. That’s why it’s the perfect place to study physics!

Who wants a funnel cake?
Many physics teachers take their classes to amusement parks! Why? Not just because it’s fun—fairgrounds and amusement parks are excell