Unit 2 Review Metals, Nonmetals, Metalloids, & Density

Based on the physical properties of metals, nonmetals, and metalloids, which observation is correct?

• Fluorine is malleable, and lithium conducts electricity.

• Phosphorus is malleable and conducts electricity.

• Lithium is malleable and conducts electricity.

• All three elements are malleable and conduct electricity.

A student who is feeling cold rubs her hands on her bare arms. What energy transformation is the student using to feel warmer?

• Mechanical to thermal

• Light to thermal

• Thermal to chemical

• Electrical to thermal

Tags

NGSS.MS-PS3-5

Which inclined plane requires the most amount of force to move an object?

• A

• B

• C

• They all require the same amount of force.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

At what time interval was the toy stopped?

• 0-2 s

• 2-5 s

• 5-7 s

• 7-12 s

Tags

NGSS.MS-PS3-1

Which claim is supported by the information about sodium and chlorine?

• Table salt is an element.

• Table salt is a compound.

• Table salt is a mixture of elements.

• Table salt has similar properties to sodium.

Tags

NGSS.MS-PS1-1

A student is examining an object in science class. It is a pale yellow, brittle solid, with no shine. The sample is most likely a

• nonmetal

• metalloid

• metal

• semi-conductor

Which of the following best replaces X in the table above?

• Malleability

• Reactivity

• Oxidation

• Density

What is the approximate density of the cube? A student needs to find the density of a cube. Each side of the cube measures 3 cm and the mass of the cube is 12 g.

• 0.4 g/cm³

• 2.25 g/cm³

• 4.0 g/cm³

• 5.0 g/cm³

What is the density of the rock sample shown in the illustration above?

• 1.43 g/cm³

• 36 g/cm³

• 40 g/cm³

• 5.0 g/cm³

What is the density of the metal sample rounded to the nearest tenth?

• 3.6 g/cm³

• 3.8 g/cm³

• 5.0 g/cm³

• 8.2 g/cm³

Tags

NGSS.MS-PS1-2