Electrical Forces

You have 2 circular objects, and each has a positive charge near each other, but not touching. Which statement describes the force that is exerted on the objects due to their electric charge?

• There is a force pushing both objects to the left.

• There is a force pulling the objects toward each other.

• There is a force pushing the objects away from each other.

• There is no force on the objects due to their electric charge.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

A repelling force occurs between two charged objects when the charges of are of __________.

• like signs

• unlike signs

• equal magnitude

• unequal magnitude

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

An attracting force occurs between two charged objects when the charges are of _______________.

• like signs

• unlike signs

• equal magnitude

• unequal magnitude

You have two pairs of charged objects interacting with each other. The first pair (A and B) are 10 cm apart. A has a +1 charge and B has a -1 charge.

Pair C and D are 17cm apart. C has a +1 charge, and D has a -1 charge.

Which of these statements is true?

• There are no electric forces because the charges in each pair of objects cancel.

• The electric force between A and B is smaller than the electric force between C and D.

• The electric force between A and B is greater than the force between C and D.

• The electric force between A and B is identical in magnitude to the electric force between C and D.

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NGSS.MS-PS2-3

What type of force is electric force?

• Pull and Push

• Contact Force

• magnetic force

• Non contact force

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NGSS.MS-PS2-3

If the distance between two charged objects increases, the electric force between them _____.

• decreases

• increases

• remains the same

• stops

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NGSS.MS-PS2-3

Objects are only affected by electric forces if they are ___ the electric field.

• Inside

• Outside

• Under

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

As two objects move farther apart, electric forces will ___.

• Increase

• Decrease

• Stay the Same

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NGSS.MS-PS2-3

Two objects will experience an electric force of attraction when they have ____.

• like charges

• opposite charges

• the same amount of charge

• no charge

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NGSS.MS-PS2-3

Lightning is an example of the effects of ___.

• Electric Forces

• Magnetism

• Gravity

• Contact Forces

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NGSS.MS-PS2-3

NGSS.MS-PS2-5