Electric Forces and Charges

Electric Forces and Charges

Assessment

Interactive Video

Physics, Science, Chemistry

6th - 8th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video explains the concept of electric forces using the example of a sock and shirt sticking together after being in a dryer. It discusses how electric forces are non-contact forces caused by electric charges, which can be positive, negative, or neutral. The video further explains how charges can transfer between objects, such as in a dryer, leading to attraction or repulsion. It also covers factors affecting the strength and direction of electric forces, including the magnitude of charges and the distance between objects.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of force is responsible for a sock sticking to a shirt after being in the dryer?

Gravitational force

Frictional force

Electric force

Magnetic force

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property of matter causes electric forces?

Density

Electric charge

Volume

Mass

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net charge of most objects under normal conditions?

Neutral

Negative

Positive

Variable

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when two objects with the same electric charge come close to each other?

They become neutral

They lose their charge

They attract each other

They repel each other

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is true about electric forces?

They have no effect on objects

They can both attract and repel objects

They only repel objects

They only attract objects

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be true for a sock and a shirt to be attracted to each other after being in the dryer?

They must have the same net charge

They must have opposite net charges

They must be at the same temperature

They must be made of the same material

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the strength of an electric force change with the distance between two charged objects?

It becomes zero

It decreases with distance

It increases with distance

It remains constant

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