1st Semester Final Review

The SI base unit for length is _____.

• meter

• liter

• gram

• joule

The SI base unit for mass is the __________.

• kilogram

• meter

• liter

• joule

An object with a mass of 26.94 g and a volume of 2.568 cm³ has a density of _____.

• 10.49 g/cm³

• 0.09532 g/cm³

• 69.18 g/cm³

• 9.0 g/cm³

The product of 2 x 10⁴ cm and 4 x 10^-12 cm is _________.

• 8 x 10^-8 cm²

• 5 x 10 ^-9

• 8 x 10^-16 cm³

• 2 x 10^-8 cm

Dimensional analysis is a method of problem solving that focuses on the __________ used to describe matter.

• units

• numbers

• math

• equations

Tags

NGSS.MS-PS3-4

The number 1,270,000 written in scientific notation is _________.

• 1.27 x 10⁶

• 12.7 x 10⁵

• 127 x 10⁴

• .127 x 10⁷

The positive particle that is located in the nucleus of an atom is called a _______.

• proton

• neutron

• electron

• quark

The neutral particle found in the nucleus of an atom is the ___________.

• neutron

• proton

• electron

• quark

The number of protons in a neutral atom is equal to the number of _____________.

• electrons

• neutrons

• nuclei

• quarks

The sum of the number of protons and neutrons in an atom is the ________.

• mass number

• atomic number

• atomic mass

• atomic average