Newton's Third Law of Motion What is Newton's Third Law of Motion? Balloon Rally Step 1: Attach a balloon to the end of a flexible straw with tape Choose the end that is furthest away from the bend. Pin D Step 2: Push a straight pin through the straw about halfway between the balloon and the bend in the straw. Faston the pin in Pencil the eraser of a pencil Blow up the balloon and bend your straw to a 900 angle before allowing the air to escape. What happens ? s' d 900 Blow up the balloon and bend your straw to a 450 angle before allowing the air to escape. What happens? More difficult 450 Blow up the balloon, but leave your straw straight (1800 angle). Release the air in the balloon. What happens? ist 1800 Remove the pin and hold on to the straw as you blow up the balloon. Release the straw. What happens? Remove pin and Explain your observations in terms of Newton's 3rd Law