What is the net force shown in the image?

• 25 Newtons

• 5 Newtons Left

• 5 Newtons Right

• 15 Newtons Left

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which force diagram properly shows how gravity, friction and the normal force are acting on the skier?

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NGSS.MS-PS2-4

Which diagram shows an object with balanced forces?

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Which image shows south ends of two bar magnets repelling away from each other?

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NGSS.MS-PS2-5

Which arrangement of objects would have the greatest gravitational force?

• A

• B

• C

• D

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NGSS.MS-PS2-4

What happens to field forces of an object when distance between the objects is increased?

• The force becomes stronger

• The force become weaker

• The force does not change

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NGSS.MS-PS3-2

What will these electric field charges do?

• Attract

• There will be no interaction because they are not touching.

• Repel

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What will these electric field charges do?

• Attract

• There will be no interaction because they are not touching.

• Repel

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NGSS.MS-PS2-3

• The magnetic north poles of the two magnets are facing each other.

• It is never possible to determine the poles of the two magnets

• A magnetic north pole is facing a magnetic south pole.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Why can magnets move paperclips without actually coming in contact with paperclips.

• The magnetic field around the magnet acts as a non-contact force.

• The magnets have protons pulling the proton of the magnets

• Magnets have to touch the paperclips before the magnet turns on.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5