Electric Current

Question 1

What is the name of the area around a charged object where the object can exert a force on other charged objects?

Revolt · Accepted Answer

electric field

Question 2

An electroscope is a device that detects charge on objects that touch it or are brought near it. John rubs a piece of cotton fabric on a plastic rod and then touches the rod to the electroscope.

Revolt · Accepted Answer

John charges the rod through friction, then charges the electroscope through conduction.

Question 3

Why does Chelsea see sparks as she removes her clothes from the clothes dryer?

Revolt · Accepted Answer

static discharge

Question 4

Hiro rubs an inflated balloon on his hair, and his hair sticks to the balloon. As he moves the balloon away from his head, how does the electric force change?

Revolt · Accepted Answer

The electric force decreases because the distance increases.

Question 5

A negatively charged rod is placed near two neutral metal spheres, as shown below.

Revolt · Accepted Answer

Electrons move from Sphere A to Sphere B.

Question 6

Two balls are placed near one another and hang down, as shown below.

Revolt · Accepted Answer

Neither ball has a charge.

Question 7

The diagram shows two charged objects, X and Y.

Revolt · Accepted Answer

X: positiveY: positive

Question 8

How does increasing the amount of charge on an object affect the electric force it exerts on another charged object?

Revolt · Accepted Answer

The electric force increases because the amount of charge has a direct relationship to the force.

Question 9

Alfredo makes a diagram to organize his notes about charging objects.

Revolt · Accepted Answer

The objects have the same charge.

Question 10

What would make oppositely charged objects attract each other more?

Revolt · Accepted Answer

increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object

Electric Current Answers

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