Physics 2 Static electricity

What subatomic particle is responsible for electric charge transfer between objects?

Electrons

What happens to an object that gains extra electrons?

it becomes negatively charged

What is true about electric charges?

Opposite charges attract and like charges repel

What type of charging occurs when a balloon is rubbed against hair?

Charging by friction

In charging by conduction, what must happen for a neutral object to become charged?

It must come into direct contact with a charged object

Which statement best describes charging by induction?

A charged object causes electrons in a nearby object to rearrange without contact

What is the role of grounding during charging by induction?

It allows excess electrons to leave or enter, resulting in a net charge

What everyday phenomenon can be explained by static electricity?

Hair standing up after removing a hat

Why are insulators important in electrical systems?

They block the movement of electrons to prevent accidental shocks

The magnitude of the electric force between two point charges depends on the distance between them in what manner?

Inversely proportional to the square of the distance

Which of the following statements is INCORRECT for the electric force between two point charges?

inversely proportional to the magnitude of the two charge

What accurately reflects the nature of forces between charges?

Two negatives: repulsion, One positive and one negative: attraction.

If the charges of two point charges are doubled while the distance between them remains the same, how does the Coulomb force change

The force is quadrupled.

how does the force between two point charges change when the distance between them is halved?

The force is quadrupled.