Interactions Period 5

Front

Why do some things stick together and other things don’t?

Back

Things stick together if the two objects have opposite charges or one is charged and one is neutral (attraction). Things pull apart if they have the same charge (repulsion).

Front

Examples of things that stick together and things that don’t.

Back

Some examples of things that stick together include clothes after they were in the dryer because a charge builds up on the objects, causing them to attract to each other. Things that don't stick together may include two neutral objects, like two pieces of neutral paper.

Front

What are some patterns in how things stick together or push apart?

Back

Things stick together if the two objects have opposite charges or one is charged and one is neutral (attraction). Things pull apart if they have the same charge (repulsion).

Front

What effect do charged objects have on uncharged objects?

Back

The charged object can attract or repel electrons within the uncharged object, causing a temporary separation of charges. This is called polarization. Attraction: The side of the uncharged object closer to the charged object will have a net opposite charge, leading to an attractive force.

Front

How do I know if something is positively or negatively charged?

Back

If an object has more protons than electrons, then the net charge on the object is positive. If there are more electrons than protons, then the net charge on the object is negative.

Front

How does an object’s charge affect its interactions with neutral objects?

Back

Any charged object - whether positively charged or negatively charged - will have an attractive interaction with a neutral object. Positively charged objects and neutral objects attract each other; and negatively charged objects and neutral objects attract each other.

Front

What are the factors that affect how strongly objects interact with each other?

Back

The distance between charged objects and the amount of charge on them.