Physical Science Exam

Water, H2O, is a molecule made of oxygen and hydrogen. The bonds that hold water molecules together are due to shared electrons, and known as __________ bonds.

• covalent

• dependent

• ionic

• nuclear

Tags

NGSS.MS-PS1-1

Magnesium, calcium, and strontium are examples of ____________.

• non-metals

• alkali metals

• transition metals

• alkaline earth metals

An atom with an atomic number of 12 and a mass number of 25 can best be described by which of these?

• An atom that contains 12 protons and 13 neutrons.

• An atom that contains 13 protons and 12 neutrons.

• An atom that contains 12 protons and 25 neutrons.

• An atom that contains 25 protons and 12 neutrons.

Tags

NGSS.MS-PS1-1

Check out the picture of the periodic table of elements. Follow the arrow from left to right. What is an important trend you would notice about the elements as you move from left to right?

• The elements change from gases to solids.

• The elements change from solids to liquids.

• The elements change from metals to nonmetals.

• The elements change from not very reactive to very reactive.

Chlorine is the atomic number 17 in the periodic table of elements. What information does the atomic number give you about the element chlorine?

• An atom of chlorine has 17 protons+

• An atom if chlorine has 17 protons⁺ and electrons^-

• An atom of chlorine has 17 protons+ and 17 neutrons+

• Chlorine atoms have 17 of each of the three subatomic particles, protons, neutrons, and electrons

All matter is made of:

• Atoms

• Mass

• Stuff

• volume

Tags

NGSS.MS-PS1-1

mechanics is the study of

• motion

• the affect of gravity on still objects

• system's surroundings

• why things move

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

objects remain at rest and objects in motion continue in a straight line at a constant speed unless acted on by an external force

• Newton's 1st

  Law of Inertia

• Newton's 2nd

  Law of accelerated motion

• Newton's 3rd

  Law of Action-Reaction

• Law of Gravity

What are the two branches of physical Science?

• Chemistry

• Physics

• Algebra

• Calculus

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

a measurable quantity that requires two pieces of info to be completely described:

Direction and Magnitude

• vector

• scalar

• Acceleration

• Motion