science practice test

Which object would be attracted by a magnet?

• an iron nail

• a rubber balloon

• a piece of paper

• an aluminum paper clip

The end of one bar magnet is placed near the end of another bar magnet. The two ends seem to push each other apart. Which of these statements is true?

• the two ends are like poles

• the two ends are unlike poles

• there are like electrical charges on the two ends

• there are unlike electrical charges on the two ends

Which of these is a ferromagnetic material?

• aluminum

• copper

• diamond

• iron

Sometimes the north and south poles of atoms in a material will line up. What is the term for the region where this occurs?

• domain

• feromagnetic

• magnetic

• magnetic field

Where is the magnitude of force around this object the greatest?

• closest to the poles

• farthest from the poles

• equal at all points

• halfway between the poles

Sometimes the north and south poles of atoms in a material will line up. What is the term for the region where this occurs?

• ferromagnetic

• iron filings

• domain

• electric field

Which of the following statements are true about the image of two circular magnets and a pencil below?

• like poles are facing, if flipped they would attract

• like poles are facing, if flipped they would still repel

• opposite poles are facing, if flipped, they would attract

Which of these determines whether or not a material is magnetic?

• the density of the material

• the number of elements that make up the material

• the weight of the material on earth

• the alignment of atoms in the material

what happens when you go from picture a to picture b?

• the force doesn't change

• the bars go from attracting to repelling

• the bars go from repelling to attracting

The picture below shows a Lodestone. Which of the following statements is true about Lodestones?

• lodestones are man made magnets done in the shape of stones

• lodestones are naturally occurring permanent magnets

• lodestones are naturally occurring temporary magnets