Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the atom?

• A)electron

• B)neutron

• C)nucleus

• D)proton

The nucleus of the atom contains the greatest concentration of mass of an atom. Which arrow is pointing at the nucleus of Nitrogen?

• A)A

• B)B

• C)C

• D)D

Tags

NGSS.MS-PS1-1

An atoms, electrons surround the nucleus in

• A)random patterns.

• B)specific energy levels.

• C)orbits like the planets.

• D)a "plum pudding" type arrangement.

The nucleus of an atom contains which subatomic particles?

• A)neutrons only

• B)protons and neutrons

• C)neutrons and electrons

• D)protons and electrons

The electron cloud is the predicted location for what? ( One Sentence Minimum)

Tags

NGSS.MS-PS1-1

Which statement about matter is correct?

• A)In matter, molecules never stop moving.

• B)In the solid state, molecules stop moving.

• C)Pressure and temperature do not affect matter.

• D)Liquids have a lower level of energy than solids.

Tags

NGSS.MS-PS1-4

How would you describe the relationship between the mass of a car and its kinetic energy?

• A)As the mass of a car increases, its kinetic energy increases.

• B)As the mass of a car increases, its kinetic energy decreases.

• C)As the mass of a car decreases, its kinetic energy increases.

• D)There is no clear relationship between mass and kinetic energy.

Tags

NGSS.MS-PS3-1

Which point on the pendulum's swing represents the minimum potential energy?

• A)A

• B)B

• C)C

• D)A & C

Tags

NGSS.MS-PS3-2