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19 Cards in this Set

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Connecting a charged object to the ground; it loses its static charge. Electrons are either tranfered from the ground to the rod or from to rod to the ground

Electrical discharge

When an object loses some of its static charge to another object or material.

The 3 laws of static electricity

1) objects of like charges will repel each other

2) objects of opposite charges will attract each other.

3) charged objects will attract some neutral objects

What charge do protons have?


What charge do neutrons have


What charge do electrons have


Which of the subatomic particles can move easily from one object to another


How do objects become negatively charged?

The lose electrons to another object

How do objects become positively charged?

The gain electrons from another object

Why is the type of electricity we've studied called "static" rather than "current"

Static electicity involves charges that are not moving, whereas current electricity involves moving charges

What is the electrostatic series?

A list of materials ordered from the strongest hold on electrons to the weakest

Which elements are insulators?

Non metals

Which elements are conductors


Which elements are insulators and conductors based on scientific conditions?

Semi metals (metalloids)

Why can you lose your static charge just by touhing a metal pipe attatched to the earth?

You are grounding yourself, tranfering your static to the pipe and into the ground.

Why is lightning simply electrical discharge on a grand scale?

Lightning occurs because so much static charge has built up in a cloud that the electons will jump the between the clouds and the ground, releasing a large amount of energy.

How do you charge an object by contact

This occurs when a charged object touches a neutral object, transfering electrons between the two. Both objects will have the same charge.

How do you temporarily charge an object by induction?

Thus occurs when a charged object is brought close to a neutral, grounded object (not touching it). The charged object forces electrons to move from the neutral object to the ground or vice versa. Giving the object a temporary charge.

Why do the leaves of an electroscope respond when the metal sphere is touched by a charged rod?

Electrons are either transfered to or from the rod. This leaves each leaf with the same charge so they repel each other