Non-Contact Forces

Which of the following forces can push (repel) and pull (attract)?

• Magnetic Force

• Electric Force

• Gravitational Force

• Both Magnetic and Electric Force.

• All Three, Magnetic, Electric and Gravitational Force.

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NGSS.3-PS2-3

When two magnets repel, they ________________

• change color
• pull together
• push apart
• get colder

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NGSS.3-PS2-3

Iron filings and bar magnets are placed on a piece of paper. Explain the pattern on the diagram below. Where is the magnetic field the strongest?

• The magnetic field is only strong at the north pole

• The magnetic field is only strong at the south pole

• The magnetic field is strongest at the magnet’s poles.

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NGSS.MS-PS2-5

NGSS.MS-PS2-3

When placed at equal distances apart, the greatest gravitational attraction will be between two

• skateboards

• bowling balls

• school buses

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NGSS.MS-PS2-4

NGSS.MS-PS2-5

As the product of two objects' masses increases, the pull of gravity

• Increases
• Decreases
• Stays the same

Tags

NGSS.MS-PS2-4

if mass of an object is doubled, force of gravitation will be

• a. halfed

• b. doubled

• c. increases 4 times

• d. no change

Tags

NGSS.MS-PS2-4

Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.
• The balloons will attract each other.
• The balloons will become positively (+) charged.
• The balloons will pop.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Electric charges that are alike _______ each other.

• Attract
• Repel

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NGSS.MS-PS2-5

Which of the following data would support the claim that the gravitational force between objects depends on mass?

• The gravitational force gets weaker as objects get farther apart.

• The graviational force only pulls on objects.

• The gravitational force is greater on more massive planets.

• The graviational force is only attractive.

Tags

NGSS.MS-PS2-4

Each non-contact force has an area of influence surrounding it.  What is this area called?

• gravitational attraction
• influence center
• field 
• attraction 

Tags

NGSS.MS-PS2-5