Build a Grandfather Clock

1. observe
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1
NOVICE BUILDER
Builders use the engineering design process to create their own projects based on preexisting inventions. To become a Builder, you must show the ability to build and design as many time as needed to make your inventions works. Pick an experiment to build and answer the questions with your findings! Experts will evaluate your answers. To get the Novice Builder badge you only need 5 points!Click on the badge for more information.
2
BUILDER APPRENTICE
Builders use the engineering design process to create their own projects based on preexisting inventions. To become a Builder, you must show the ability to build and design as many time as needed to make your inventions works. Pick an experiment to build and answer the questions with your findings! Experts will evaluate your answers. To get the Builder Apprentices badge you need 50 points!Click on the badge for more information.
3
BUILDER EXPERT
Builders use the engineering design process to create their own projects based on preexisting inventions. To become a Builder, you must show the ability to build and design as many time as needed to make your inventions works. Pick an experiment to build and answer the questions with your findings! Experts will evaluate your answers. To get the Builder Expert badge you need 100 points!Click on the badge for more information.
4
MASTER BUILDER
Builders use the engineering design process to create their own projects based on preexisting inventions. To become a Builder, you must show the ability to build and design as many time as needed to make your inventions works. Pick an experiment to build and answer the questions with your findings! Experts will evaluate your answers. To get the Master Builder badge you need 150 points!Click on the badge for more information.
5
ENGINEER APPRENTICE
Engineers know there is more than one way to do something. To become an Engineer, you must test multiple options and recommend a new solution for the same problem. How did you modify the experiment to make it better is a very important question for an engineer! Pick an experiment to build and answer the questions with your findings! Experts will evaluate your answers. To get the Engineer Apprentice badge you need 200 points!Click on the badge for more information.
6
ENGINEER EXPERT
Engineers know there is more than one way to do something. To become an Engineer, you must test multiple options and recommend a new solution for the same problem. How did you modify the experiment to make it better is a very important question for an engineer! Pick an experiment to build and answer the questions with your findings! Experts will evaluate your answers. To get the Engineer Expert badge you need 250 points!Click on the badge for more information.
7
MASTER ENGINEER
Engineers know there is more than one way to do something. To become an Engineer, you must test multiple options and recommend a new solution for the same problem. How did you modify the experiment to make it better is a very important question for an engineer! Pick an experiment to build and answer the questions with your findings! Experts will evaluate your answers. To get the Engineer Expert badge you need 300 points!Click on the badge for more information.
8
INVENTOR APPRENTICE
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9
INVENTOR EXPERT
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10
MASTER INVENTOR
To be an Inventor, you must go to the next level! You have to develop totally new and creative inventions and designs. You identify a problem and create a totally new solution. Share you project and experts will evaluate it. To get the Master Inventor badge you need 500 points!Click on the badge for more information.
collect badges
Design a pendulum that can keep track of time.

2.build

collect

  • string
  • any heavy object that can serve as a weight
  • a stopwatch

activity

1) First cut off the string as long as you want it.

2) Attach a weight to it (you can tie the string around it or tape it directly on to the object)

3) Hold the end of the string without the weight high enough so the weight is not touching the ground.

4) Make sure your string is straght.

5) Using your other hand, swing the weight either left or right. 

6) Let go of the weight and have someone start the stopwatch and then stop it once the weight gets back to you.

7)  Make a design that will allow your pendulum to swing ten times in ten seconds

8)  If you are able to make a design that swings ten times in ten seconds redesign so your pendulum will go twice as fast (20 times) or twice as slow (5 times) in ten seconds.

 

explore

Grandather clocks are very beautiful and work using a pendulum. In the grandfather clock, the pendulum is usually found on the lower half of the clock and it swings back and forth. The pendulum keeps track of the seconds. A pendulum is a weight (some object) that is hung from a string (does not have to be a string) and swings back and forth, never slowing down or speeding up on its own.

The speed of the pendulum, called the "period," depends basically on two things: the length of the string and the mass of the object hung on the string. It's fascinating that the period does not depend on how far the thing is swinging—so if your pendulum swings just a centimeter or two, it should have the same period as if it swings much farther back and forth. Try this out yourself and see if it's true on your pendulum!
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