Electrostatics and Charge Interactions

The video tutorial explores an experiment involving static electricity and pith balls. It begins with setting up a plastic sheet and pith balls, explaining how static charge is generated and affects the balls' movement. Various setups and materials, such as aluminum foil and styrofoam, are tested. The experiment is scaled up using larger materials, demonstrating the principles of static electricity and charge interaction.

What is the primary material used in the initial setup of the experiment?

• Metal

• Wood

• Polycarbonate

• Glass

What happens to the pith balls when the plastic sheet is rubbed?

• They stick to the sheet

• They bounce around

• They melt

• They disappear

What type of charge does the hand acquire when rubbed against the plastic sheet?

• Negative charge

• Neutral charge

• Positive charge

• No charge

What is the effect of bringing a hand near the charged plastic sheet?

• It causes the balls to move

• It causes the balls to shrink

• It causes the balls to stop moving

• It causes the balls to change color

What happens to the ball placed on top of the charged sheet?

• It remains stationary

• It dances around the surface

• It sticks to the sheet

• It rolls off immediately

What alternative material is suggested for the box in the experiment?

• Plastic

• Glass

• Aluminum foil

• Wood

What is used to wrap larger foam balls as an alternative to graphite paint?

• Plastic wrap

• Cloth

• Aluminum foil

• Paper

What is the purpose of using masking tape bumpers in the larger setup?

• To make the setup heavier

• To increase the charge

• To keep the balls from rolling off

• To decorate the setup

What is observed when a hand gets near or touches the ball in the larger setup?

• The ball sticks to the hand

• The ball deflates

• A small spark occurs

• The ball changes color

What is the size of the larger piece of plastic used in the final setup?

• 12 by 18 inches

• 18 by 24 inches

• 30 by 40 inches

• 24 by 36 inches