Science Projects for Kids: Laws of Gravity and Motion


Swing on a Pendulum

Your children can discover the laws of physics when they try to swing on a pendulum at the playground.

What You'll Need:

  • Swing set
  • Partner
  • Stopwatch

How to Swing on a Pendulum:

Step 1: Have your kids sit in a swing and have their partner push them gently. Time how many times they go back and forth in one minute. Make sure they don't pump the swing. Just let it go on its own.

Step 2: Their partner can use a stopwatch to time precisely one minute while your children count.

Step 3: Then have your children's partner push your children as hard as possible. Again, make sure they don't pump the swing. Count how many times they go back and forth in one minute. Is it any different?

Step 4: Now have them try the same experiment, but pump the swing by themselves. Does adding a force affect the frequency of the swing?

Keep reading science projects for kids: laws of gravity and motion to learn how it's possible for an ounce to lift a pound.

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