Static Electricity

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 lost electrons to the cotton during the charging process.

An object that becomes grounded gains neutrons during the grounding process.

False

An object that is negatively charged could contain only electrons with no accompanying protons.

False

Which statement best explains why a rubber rod becomes negatively charged when rubbed with fur?

Molecules in the rubber rod have a stronger attraction for electrons than the molecules in the fur.

Saran Wrap has a larger electron affinity than Nylon. If Nylon is rubbed against Saran Wrap, which would end up with the excess negative charge? ____________

Saran Wrap

Electrons

are the charged parts of an atom.

Electrical forces

can cause objects to attract or repel each other

A neutral metal sphere is touched by a negatively charged metal rod. During the process, electrons are transferred from the _____ to the _____ and the sphere acquires a _____ charge.

charged rod, neutral sphere, negative

A rubber balloon possesses a positive charge. If brought near and touched to the door of a wooden cabinet, it sticks to the door. This does not occur with an uncharged balloon. These two observations can lead one to conclude that the wall is _____.

electrically neutral

A neutral metal sphere is touched by a negatively charged metal rod. As a result, the sphere will be ____ and the metal rod will be ____. Select the two answers in their respective order.

negatively charged

A conductor differs from an insulator in that a conductor ________.

. none of these

A neutral metal sphere is touched by a positively charged metal rod. During the process, protons are transferred from the _____ to the _____ and the sphere acquires a _____ charge.

.. nonsense! None of these describe what occurs.

An object that is positively charged contains all protons and no electrons.

False

Electrically neutral atoms simply possess the same number of electrons as protons. This gives the objects a balance of both type of charge.

False

If you place a lightning rod on top of your home but failed to ground it, then you home would still be safe in the unlikely event of a lightning strike..

False

The presence of lightning rods on top of buildings prevents a cloud with a static charge buildup from releasing its charge to the building.

False

Which of the following materials are likely to exhibit more conductive properties than insulating properties?

aluminum, silver, plastic, wet skin

A positively charged pop can is touched by a person standing on the ground. The pop can subsequently becomes neutral. The pop can becomes neutral during this process because ______.

electrons pass from the person (ground) to the pop can