Unit 1 Test

Which property is used to determine if an object is made of pure silver (Ag)?

• The solubility of the object.

• Test to see if the object is chemically reactive.

• The density of the object and compare the known density of pure silver.

• Compare the mass of the silver object to the mass of a piece of pure silver.

Fresh milk has several parts that a farmer can separate and sell. A farmer removes the top layer of fat from fresh milk. Why is the layer of fat on top?

• The fat does not mix well with the other parts of the milk.

• The fat has a lower density than the other parts of the milk.

• There is less fat in compared to other parts of the milk.

• There other parts of the milk come out of the cow before the fat.

Tags

NGSS.MS-PS1-2

The diagram below shows 20 grams of two different materials, A and B, on a laboratory balance. What property is the difference between cube A and cube B?

• Density

• Mass

• Phase

• Shape

If you were to take a radio to the moon, which of the following would correctly describe its changes to its mass and weight?

• Its mass and weight would not change.

• Its mass would increase, and its weight would remain the same.

• Its weight would increase, and its mass would remain the same.

• Its weight would decrease, and its mass would remain the same.

Tags

NGSS.MS-PS2-4

Using the student's measurements, what is the best determination that can be made about the objects? The formula for density is D = M / V.

• The objects are different substances because their masses are different.

• The objects are different substances because their densities are different.

• The objects are different substances because their volumes are different.

• The objects are the same substance because they have the same density.

Tags

NGSS.MS-PS1-2

Which of the following is most likely to change scientific knowledge?

• More expensive experiments.

• More links added to the internet.

• Improved methods for conducting opinion polls.

• New data or interpretations of the natural world.

Which of the pictures demonstrates a state of matter without a fixed shape or a fixed volume?

• J

• K

• L

• M

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which state of matter are the molecules spaced farthest apart?

• Solid

• Liquid

• Gas

• All are equal

Tags

NGSS.MS-PS1-1

Which statement about mass and weight is correct?

• “Mass” is the scientific term for “weight.”

• Weight directly measures force while mass directly measures amount of matter.

• Weight has units of kilograms or grams. Mass has units of Newtons.

• The mass of an object depends on the size of the object, but the weight of an object does not.

Tags

NGSS.MS-PS2-4

Which of the pictures demonstrates a state of matter with a fixed shape and a fixed volume?

• J

• K

• L

• M

Tags

NGSS.MS-PS1-4