Quiz: Painting with Static Electricity

What is one problem with traditional spray-painting?

• • It only works on metal objects

• • It can be messy and waste paint

• • It doesn’t use any electricity

• • It is more expensive

Tags

NGSS.MS-ESS3-3

What does an electrostatic painting system use to guide paint?

• • Magnetic fields

• • Electric fields

• • Light rays

• • Wind power

Tags

NGSS.MS-PS2-3

What kind of charge does the object being painted usually have in electrostatic painting?

• • Positive

• • Negative

• • Neutral

• • Alternating

What type of force occurs between opposite electric charges?

• • Repulsive

• • Attractive

• • Neutral

• • None

Tags

NGSS.MS-PS2-5

What charge do paint droplets get when they go through the sprayer nozzle in an electrostatic system?

• • Negative

• • Positive

• • Neutral

• • Alternating

Tags

NGSS.MS-PS2-3

Why do paint droplets move towards the object being painted?

• • The object and droplets have the same charge

• • The object and droplets have opposite charges

• • The object pushes the droplets away

• • The paint nozzle guides them

Tags

NGSS.MS-PS2-5

Which of the following can both electric and magnetic fields produce?

• • Attractive forces only

• • Repulsive forces only

• • Both attractive and repulsive forces

• • No forces

What does it mean when two electric charges are alike?

• • They attract each other

• • They repel each other

• • They combine to form a larger charge

• • They create a neutral force

Which direction do electric fields extend from electric charges?

• • Upward only

• • In all directions

• • Downward only

• • Sideways only

How does an electrostatic painting system help prevent paint waste?

• • By guiding paint to the desired area only

• • By using less paint

• • By applying paint without droplets

• • By using non-electric methods