The Great Spinning Penny/Screaming Balloon Trick

What is the name of the force causing the penny to spin in a circle?

• centripetal force

• gravity

• inertia

• The Force (like from Star Wars)

Check all that apply-What force (or forces) might be acting on the penny to cause it to slow down, move to the bottom of the balloon, and eventually stop?

• friction

• twirly whirlies

• gravity

• balloon

Tags

NGSS.MS-PS2-4

How do you think this experiment would be different if you performed it as an astronaut on the International Space Station? Hint: What force is macro on earth but micro in space?

Tags

NGSS.MS-ESS1-2

What do you think causes the spinning hex nut to make the noise you hear?

Tags

NGSS.MS-PS3-5

NGSS.MS-PS4-1

Check all that apply-What do you predict has to happen in order for something to make a sound?

• there are vibrations

• the hex nut is screaming

• the vibrations travel through the air

• your ears detect the vibrations

Tags

NGSS.MS-PS4-2

Spin the balloon with the hex nut and the balloon with the penny at the same time. Which object spins longer? Why do you think this happens?

Tags

NGSS.MS-PS2-2

Check off three forces you think are acting on the spinning hex nut.

• gravitational force

• The Force-(Like from Star Wars)

• centripetal force

• friction

Tags

NGSS.MS-PS2-4