8.PS2.1 and 8.PS2.2 Review

What is a NON-CONTACT force?

• A push or pull force where the objects are not touching

• A push force where the objects are touching.

• An example would be pulling open a door.

• The only type of force that exists in the world.

Tags

NGSS.MS-PS2-5

As the MASS of an object increases, its gravitational pull _________.

• Stays the same

• Decreases, then increases, then decreases

• Decreases

• Increases

Tags

NGSS.MS-PS2-4

If you placed two magnets next to one another, and the NORTH poles were facing one another, what would happen?

• The magnets would attract (pull together)

• The magnets would repel (push apart)

• The magnets would explode.

• The magnets would spin out of control.

Tags

NGSS.MS-PS2-5

Which answer best describes this image?

• The positive charge is repelling the negative charge.
• The blue charged object will repel the negatively red charged object.
• The positively charged red object will be attracted to the negatively charged blue object.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What TWO ways can you increase gravitational attraction between two objects?

• Give the objects more mass

• Make the objects closer to each other

• Give the objects less mass

• Make the objects further to each other

Tags

NGSS.MS-PS2-4

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.

Tags

NGSS.MS-PS2-5

If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move if its tip is a north pole?

• Clockwise (to the right)

• Counter-clockwise (to the left)

• It will not move

• Need more information

Tags

NGSS.3-PS2-1

NGSS.3-PS2-3

How can you increase the strength of this electromagnet?

• Get a larger nail.

• Add more loops of wire.

• decrease the loops of wire.

• Get a smaller nail.

Tags

NGSS.MS-ETS1-2

NGSS.MS-PS2-3

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-PS2-3