Bored at home? Want to enjoy cool science experiments and also learn English?
Yala, let's get started!

The experiment ahead of you 

Rocket Car (Physics)

Objective:

Understanding Newton’s Laws, in particular Newton’s Third Law of

Motion by creating a rocket propulsion car.

Introduction:

Newton’s Third Law of Motion is also called the Action-Reaction

Law. For every force exerted on an object, the object exerts a force equal in

magnitude and opposite in direction.

Experimental method:

  • Cut a straw into two equal halves
  • Use sharp end of wooden skewer to poke hole into one wheel. Slide wheel to other end of skewer.
  • Insert skewer into one of the straw halves.
  • Poke second wheel onto sharp end of skewer.
  • Repeat with another straw, skewer and wheels.
  • Glue straws onto bottom of plastic base.
  • Connect balloon onto another straw, making sure there are no air leaks when balloon is blown up.
  • Glue straw to top of plastic base, with open and pointing out of base area.
  • Blow up balloon, pinch straw so air does not escape and place wheels on
    Release straw.

List of equipment:

  • 4plastic circles.
  • 2 wooden skewers.
  • Square/rectangle plastic base.
  • Scissors.
  • 2 straws.
  • 6 Balloon
  • Sticky tape/glue.

Theoretical background:

Sir Isaac Newton was an English physicist and mathematician. He laid

down the foundations for modern physics as we know them today. In this

experiment we will focus on Newton’s Third Law, which states that for any

force acted upon an object, the object will react with a force equal in strength

but opposite in direction, so that the net force acted is zero.

We use this law when swimming, walking or pushing an object.

Rocket propulsion works in the same way – the object exerts a force greater

than its weight in one direction and is therefore pushed in the opposite

direction, like in a rocket launch.

?Want to experiment

?Interested in making experimental suggestions

Welcome to write to us in a private message On

our Facebook page or send an email to

science-park@rashi.org.il