Coulomb's law - worksheet

Protons have a ___________________ charge.

electrons have a __________ charge.

Tags

NGSS.MS-PS2-3

Like charges ______________, unlike charges ____________ .

• repel, attract

• attract, repel

• attract, attract

• repel, repel

What does it mean to say an object is electrically neutral?

• It has an equal number of protons and neutrons.

• It has an equal number of protons and electrons.

• It has more protons than electrons.

• It has more electrons than protons.

Is an object’s net charge positive or negative if it loses electrons?

• positive

• negative

How does the charge of an electron compare to the charge of a proton?

• They are equal in size and both negative.

• They are equal in size and both positive.

• Electrons have more charge than protons.

• They are equal in size. Protons are positive and electrons are negative.

• They are equal in size. Protons are negative and electrons are positive.

What two factors determine the amount of electric force between objects (use Coulomb’s Law)?

• amount of charge and distance

• constant and distance

• velocity and amount of charge

• distance and acceleration

Tags

NGSS.MS-PS2-3

What happens inside an electroscope if a positively charged object is held above it without touching it.

• Nothing happens.

• The electrons move up the rod towards the positive object, causing the leaves in the bottom to push away from each other.

• The electrons move down the rod away from the positive object, causing the leaves in the bottom to push away from each other.

• The electrons jump to the positive object from the electroscope.

Answer explanation

https://javalab.org/en/electroscope_en/

Tags

NGSS.MS-PS2-3

Why can current easily be created in a conductor but not in an insulator?

• Electrons move easily through conductors.

• Electrons do not move easily through conductors.

• Protons do not move easily through conductors.

• Protons move easily through conductors.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

True or False:

Like charges repel.

• true

• false

Tags

NGSS.MS-PS2-3