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FORCES CIRCUS. “Roll up roll up”…….. You are going to carry out a lab to investigate the forces in a circus. You will carry out a number of activities and investigate which forces are involved and what happens if they are not balanced. . Activities. Tug Lean of War Plate spinning

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FORCES CIRCUS


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forces circus
FORCES CIRCUS

“Roll up roll up”……..

  • You are going to carry out a lab to investigate the forces in a circus. You will carry out a number of activities and investigate which forces are involved and what happens if they are not balanced.
activities
Activities
  • Tug Lean of War
  • Plate spinning
  • Tight rope walking
  • Hula hooping
in your notebook
In your notebook….
  • Activity title e.g. tug of war
  • Record data / answer questions
  • Diagrams using arrows to show the direction of the forces
  • A sentence explaining the balanced and unbalanced forces involved in the activity
tug lean of war
Tug Lean of war
  • Boys vs. girls
  • Taller vs shorter or Older vs. younger
  • Equal random distribution of students

DRAW A DIAGRAM FOR EACH SCENARIO

Questions:

  • What did you see with each set?
    • (winner, time to win)
  • Who had the advantage? Why?
  • How do you make it balanced?
plate spinning
Plate spinning

Spin the ball or a plate on the point of your finger or a pencil.

DRAW A DIAGRAM

Questions:

  • How long can you do this for?
  • What did you have to do to keep it spinning?
  • Does it matter where you put the pencil? Explain.
tight rope walking
Tight rope walking

Write down the TIME it takes walking WITHOUT FALLING in the following ways:

a) with your arms tight by your side (no diagram)

b) arms held out for balance (DIAGRAM)

c) carrying a heavy bag on one side (DIAGRAM)

Questions:

  • What do you notice about the times?
  • What did you do when you had the heavy bag?
  • What affects the balance most?
hula hooping
Hula hooping

Part 1-with just one push and no moving- DIAGRAM

  • What’s the most number you can spin?
  • How long does the spin last?

Part 2- try to hula hoop like normal- DIAGRAM

  • How many times can you spin the hoop in 1 min?
  • How long can you make it spin for?
  • What do you have to do to make it spin well?

In class:

  • What force is involved in the hoop spinning?
  • How do you balance it?
conclusion
Conclusion
  • In this lab you were looking at balanced and unbalanced forces.
  • Write a paragraph explaining what you found out about ‘what a force is’ and what happens when they are balanced and unbalanced.