C1-C3 Summative Review

What two factors determine the strength of electric attraction and repulsion between objects?

• Net charge & distance
• Net charge & mass
• Net charge & velocity
• Distance & mass

Which is NOT a way that objects become charged?

• Charging by friction
• Charging by induction
• Charging by contact
• Charging by heating

Why does static electricity make your hair stand on end?

• Similar charges on your hairs repel, causing them to stand away from each other
• Opposite charges on your hairs repel, causing them to stand away from each other
• Opposite charges on your hairs attract, causing the hair to stick together and up
• Similar charges on your hairs attract, causing the hair to stick together and up

Most objects are...

• Positively charged
• Negatively charged
• Neutral
• It varies

When objects become charged, what type of charges move from one object to another?

• Negative charges
• Positive charges
• Neutral charges

Charges can be created, and charges can be destroyed.

• True
• False

If you bring two charged objects farther away from each other, they will attract...

• less
• more
• the same amount
• depends on if they are attracting or repelling

If you bring two charged objects closer to each other, they will attract...

• less
• more
• the same amount
• depends on if they are attracting or repelling

What type of particle transfers from one object to another when objects become charged?

• Proton
• Electron
• Neutron

How many charged particles are there in your pencil?

• A few
• None, because it is neutral
• A very very large number
• A hundred