Electrostatic Force

When distance increases, electrostatic force ____________; we call this relationship ____________ proportional

• decreases;directly

• decreases;inversely

• increases;inversely

• increases;directly

Tags

NGSS.HS-PS2-4

The Electric Force is strongest when charges are...

• close together

• far apart

• the electric force is constant everywhere

Tags

NGSS.MS-PS2-3

During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...

• the plastic strip acquired extra protons from the cotton.

• the plastic strip acquired extra protons from the charging process 

• protons were created as the result of the charging process

• the plastic strip lost electrons to the cotton during the charging process 

A balloon is rubbed against a student's hair and then touched to a wall. The balloon sticks to the wall due to

• magnetic forces between the particles of the balloon and the particles of the wall

• electrostatic forces between the particles of the balloon and the particles of the wall

• magnetic forces between the particles of the wall

• electrostatic forces between the particles of the balloon

Tags

NGSS.MS-PS2-3

Which force is experienced by a charged balloon sticking to a wall?

• Gravitational force

• Frictional force

• Magnetic force

• Electrostatic force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which force is responsible for the repulsion between two like-charged objects?

• Gravitational force

• Frictional force

• Magnetic force

• Electrostatic force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which force is responsible for the attraction between opposite charges?

• Gravitational force

• Frictional force

• Magnetic force

• Electrostatic force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Elijah rubs a balloon on his hair, and the balloon becomes negatively charged. What charge must Elijah's hair have?

• negative

• positive

• neutral

Tags

NGSS.MS-PS2-3

When two balloons with the same charge are brought near each other they:

• repel

• attract

• do nothing

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What interaction would we expect to take place with these two objects?

• The balloon and rod will attract because they have the same charge

• The balloon and rod will repel because they have the same charge

• The balloon and rod will attract because they have different charges

• The balloon and rod will repel because they have different charges

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5