Non-Contact Forces

Choose the 3 true statements.

• Like charges repel while opposite charges attract.

• Like charges attract while opposite charges repel.

• Opposite poles attract while like poles repel.

• Opposite poles repel while like poles attract.

• Gravitational force is always attractive.

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Two positive charges are placed next to each other. What will happen?

• The charges will attract.

• The charges will repel.

• The charges will not do anything.

• The charges will spin counterclockwise.

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Positive and negative charges will ______ each other.

• repel

• do nothing to

• attract

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Magnetic field lines run from-

• north to south.

• south to north.

• it depends on the type of metal.

• west to east.

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NGSS.MS-PS2-5

The strength of a magnetic field is at its maximum near the ______ of the magnet.

• Poles

• Midpoint

• Neutral points

• All of the answers shown

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Select the two factors that influence gravitational force.

• Distance

• Magnetic field

• Charge

• Mass

• Shape

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Identify the non-contact force: the attractive or repulsive force that comes from the poles of magnetic materials.

• Magnetic

• Electrostatic

• Gravitational

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Identify the non-contact force: the force that comes from charged particles.

• Magnetic

• Electrostatic

• Gravitational

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Identify the non-contact force: the attractive force that affects any object with mass.

• Magnetic

• Electrostatic

• Gravitational

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NGSS.MS-PS2-4

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Two charged objects will repel each other in what situation? If more than one answer, choose ALL that apply.

• + and +

• + and -

• - and -

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