Unit 1 & 2 Exam Review

1. 1. Which of the following is NOT an example of matter?

• Air

• Light

• Water

• A rock

2. 2. A student measures the mass of an object to be 50.0 grams and its volume to be 10.0 cm³. What is the density of the object?

• 0.2 g/cm³

• 5.0 g/cm³

• 60.0 g/cm³

• 500.0 g/cm³

3. 3. Two objects have the same mass but different volumes.
   Which object is more dense?

• The object with the larger volume.

• The object with the smaller volume.

• They have the same density.

• Density cannot be determined from this information.

5. 4. Which correctly describes matter?

• Anything that occupies space (volume) and has mass (made of atoms)

• Anything that can be seen

• Includes concepts like time

• Energy and gravity are examples of matter

Tags

NGSS.MS-PS1-5

5. 5. Your friend is trying to determine the identity of an unknown material, their data is shown in the attached table. They used the water displacement technique to collect volume data, and measured the object's mass on a scale. What is the density of the object?

• 2 g/mL

• 0.5 g/mL

• 5 g/mL

• 2.5 g/mL

6. 6. Your eccentric neighbor has a metal detector and found a mysterious metal object. They collected the following data with a scale and water displacement, and did some research on common metals. What is the identity of this mysterious material?

• Aluminum

• Copper

• Lead

• Iron

Tags

NGSS.MS-PS1-2

7. 7. Which of the following is an intensive property that could be used to identify a substance?

• Shape

• Size

• Density

• Weight

8. 8. A sample of a substance is cut in half. Which of the following properties will change?

• Density

• Color

• Melting point (temp where it changes from solid to liquid)

• Mass

9. 9. Which of the following is NOT an extensive property of matter?

• Mass

• Length

• Density

• Weight

10. 10. An intensive property ... (select all that apply)

• ...stays consistent when a substance is divided.

• ...increases with the size of the sample

• ...is unique for different types of materials (for example, density)

• ...can be used to identify unknown materials