The Big Top Challenge

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Questions and Answers

Which simple machine is used to knock the tent pegs into the ground?

  • Lever
  • Hammer (correct)
  • Ramp
  • Pulley

What is the main frame of the big top made of?

  • Temp pegs
  • Support ropes
  • Pulleys and ropes
  • Four king poles (correct)

What simple machine is used to lift the poles into their final position?

  • Pulley (correct)
  • Hammer
  • Lever
  • Ramp

What time does the crew start getting ready for the afternoon's performance?

<p>8 o'clock in the morning (B)</p> Signup and view all the answers

What machine is used to tighten the support ropes?

<p>Lever (A)</p> Signup and view all the answers

What is used to raise the canopy of the big top?

<p>Levers and pulleys (D)</p> Signup and view all the answers

What is the purpose of using machines in the circus setup?

<p>To make each job easier (D)</p> Signup and view all the answers

What is the force required to lift the cans straight up without using any machines?

<p>19 Newtons (A)</p> Signup and view all the answers

What simple machine is used to lift the cans using a system of pulleys?

<p>Pulley (D)</p> Signup and view all the answers

What will happen if the angle of the slope is more gentle when using a ramp to lift the cans?

<p>Less effort will be required (A)</p> Signup and view all the answers

Which type of lever is used by the acrobats in the text?

<p>First-class lever (D)</p> Signup and view all the answers

What happens when the effort force is increased from one jumper to two?

<p>The height gained by the Acrobat increases (B)</p> Signup and view all the answers

How can you calculate the turning effect of a lever?

<p>Multiply the size of the force by its distance from the pivot (B)</p> Signup and view all the answers

What is the turning effect of a force about a pivot known as?

<p>Moment (D)</p> Signup and view all the answers

What is a trebuchet?

<p>An ancient siege engine (C)</p> Signup and view all the answers

How can you increase the turning effect of a lever?

<p>Increase the distance from the pivot (B)</p> Signup and view all the answers

What is the purpose of counter balances in nature?

<p>To maintain balance and stay upright (D)</p> Signup and view all the answers

What is a jib in the context of the text?

<p>A device for mounting a camera (C)</p> Signup and view all the answers

What happens when all forces are balanced in a balancing act?

<p>The acrobat stops moving (D)</p> Signup and view all the answers

What is the purpose of the weight counter balancing the camera on a jib?

<p>To maintain balance of the camera (A)</p> Signup and view all the answers

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