Semester 2 Review Physical Science

How many groups are in the periodic table of elements?

• 8
• 9
• 16
• 18

How many periods are in the Periodic Table?

• 2
• 6
• 7
• 9

What type of chemical bond is characterized by the transfer of electrons between atoms?

• covalent
• ionic
• neutron
• proton

The density of water is ___ gram(s) per cm³ and any substance with a density greater than that will _____ in water.

• 1, sink
• 1, float
• 2, sink
• 2, float

Protons are held together in the nucleus of an atoms by the _________ force.

• weak nuclear
• electromagnetic
• strong nuclear
• gravitational

Anything that takes up space and has mass is called _______.

• matter
• chemistry
• physics
• ideas

Freezing and condensation are examples of _____ changes in matter.

• physical
• chemical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A measure of the average kinetic energy of the atoms and molecules in a substance is known as _______.

• temperature
• mass
• heat

The density of a cube-shaped object that weighs 100 g and takes up 10 cm³ of space is

• 0.1 g/cm3
• 10 g/cm3
• 1000 g/cm3

The atomic number of an element refers to the number of ______ in the nucleus of its atoms.

• protons
• electrons
• neutrons