Gravity and Magnetism

Magnets have a north and south pole. Which statement is NOT true?

• North attracts south

• South attracts north

• North repels north

• South attracts south

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NGSS.MS-PS2-5

Which is true about magnets?

• They attract all objects

• They must be touching to exert force

• Attract and repel magnetic objects

• Always attract other magnets

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This type of force can attract and repel objects.

• Gravitational force

• Jedi force

• Magnetic force

• The Earth

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If the mass of an object increases, then gravity will...

• Increase

• Decrease

• Stay the same

• Disappear

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If the distance between objects decreases, then gravity will...

• Decrease

• Increase

• Stay the same

• Disappear

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NGSS.MS-PS2-4

How is magnetic force different than gravitational force?

• Magnets attract all objects

• Magnets can attract and repel

• Changing distance will change the strength of the force

• Magnets are not affected by gravity

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In science, evidence is used to...

• back up a cliam

• make a guess

• restate a claim in your own words

• answer a question

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In a simulation, which is evidence that decreasing mass will decrease the force of gravity?

• Smaller objects move slower toward each other.

• Smaller objects move faster toward each other.

• Gravity affects all objects.

• Objects closer move faster toward each other.

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In an investigation, which is evidence that more nails will increase magnetic force?

• 2 nails picked up 10 staples

• As more loops are added, more staples are picked up

• In each trial, 2 nails picked up more staples than 1 nail

• 40 loops and 2 nails picked up the most staples

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Gravity is...

• the force of attraction between any two objects

• the force of attraction and repulsion between like and unlike poles

• any phenomenon associated with stationary or moving electrons,ions or other charged particles

• the force that attracts a body toward the center of the earth, or toward any other physical body having mass.