Sbac

What is the name of letter D?

• Amplitude

• Crest

• Trough

• Wavelength

Tags

NGSS.MS-PS4-1

The diagram shows the arrangement of electrons in a neon atom. How many protons are present in this atom's nucleus?

• 10

• 8

• 2

• There is not enough information to answer this question.

Tags

NGSS.MS-PS1-1

The table shows the number of neutrons, protons, and electrons for two atoms. How are the two atoms alike?

• They have the same charge.

• They have the same mass number.

• They have the same atomic number

• They are atoms of the same element.

Tags

NGSS.MS-PS1-1

In the diagram, the arrows labeled III point to the atom's ______________.

• Protons

• Neutrons

• Nucleus

• Electrons

Tags

NGSS.MS-PS1-1

List the steps of the scientific method

d

e

f

c

b

a

Ask a question

Form a hypothesis

Analyze results

Communicate results

Draw conclusions

Conduct experiment

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Sulfur is a nonmetal. Of the following, the physical characteristic that is most

likely to describe a sample of sulfur is —

• a shiny appearance

• brittleness

• malleability

• ductility

How many of each atom are in the compound above?

• 1 magnesium atom, 2 iron atoms, and 4 oxygen atoms

• 3 magnesium atoms, 2 iron atoms, and 4 oxygen atoms

• 6 magnesium atoms, 6 iron atoms, and 12 oxygen atoms

• 3 magnesium atoms, 6 iron atoms, and 12 oxygen atoms

Tags

NGSS.MS-PS1-1

Potassium nitrate is a compound used in some fertilizers. Its chemical formula

is KNO3. How many TOTAL atoms are in each unit of potassium nitrate?

• 2

• 5

• 3

• 9

Tags

NGSS.MS-PS1-1

Look at the pictures above. A shows the bag before the vinegar and baking soda are mixed together, and B shows it after they are mixed together. In which picture do the contents of the bag have the greater mass?

• The mass is greater in A—before they are mixed.

• The mass is greater in B—after they are mixed.

• The mass is the same in both.

• The mass depends on the temperature.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5