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Book 20, Question 130 · Video

How Does a Chairlift Work?

Video · 1:50 · Crafty Clover explains, from A Million Whys Book 20

A chairlift is a loop of cable with chairs attached. A motor turns the cable at a steady speed. It carries skiers and hikers up the mountain, so nobody has to climb the slope.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How does a chairlift work?

The Big Idea

A chairlift is a loop of cable with chairs attached. A motor turns the cable at a steady speed. It carries skiers and hikers up the mountain, so nobody has to climb the slope.

A Cable Loop

Step one: a cable loop carries the chairs. The chairs hang from the cable, spaced out evenly along it, like beads on a necklace. Steel towers hold the cable up along the slope.

A Steady Motor

Step two: a motor turns the cable. It runs at a steady speed all day, with a backup motor in case of trouble. Lifts stop if the wind gets too strong.

Slow at Stations

Step three: many chairs slow down at the stations. Modern lifts detach each chair from the moving cable so riders can get on and off easily. Then the chair grips the cable again and speeds up, ready for the ride.

A Closer Look

Let's take a closer look at a chairlift! The cable makes a big loop. A motor at the station turns it, around and around. Chairs hang from the cable. And a safety bar keeps riders secure.

Quick Facts

Quick facts! Many chairlifts carry four to six people in each chair. Chairs slow down at the stations. Lifts stop if the wind gets too strong. Always sit back, lower the safety bar, and follow lift staff directions.

Think Like a Scientist

Now, think like a scientist! Draw a chairlift with towers and a cable. Add the motor at the bottom. Label the safety bar. Show a grown-up how it works, and explain why the chairs slow down.

Outro

A chairlift is a loop that lifts. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

Why I wrote this