Units 1, 2, & 3 Review

Using significant figures, calculate the following: 15.094 + 30.03 =

• 45.12

• 45.1

• 45.124

• 45.13

You take 30.0 mL of water from a graduated cylinder and add it to a beaker of water below. What is the new volume of water in the beaker?

• 50.0 mL

• 60.0 mL

• 40.0 mL

• 70.0 mL

How many sig figs should be in your answer when you divide 6.8 by 33.456?

• 2

• 1

• 3

• 4

How many sig figs are in the number 0.00907?

• 3

• 2

• 4

• 5

Convert 456 hours to seconds.

• 1641600 seconds

• 1600000 seconds

• 1650000 seconds

• 1630000 seconds

Convert 786.5 miles to kilometers (1 km = 1094 yd.; 1 mi = 1760 yd.) Round to two decimal places.

• 1265.14 km

• 1200.00 km

• 1300.50 km

• 1400.75 km

Water has a density of 1g/mL. Which of these objects will sink in water? Object 1: mass= 75g Volume= 85mL Object 2: mass= 89g Volume= 86mL Object 3: mass= 34g Volume= 57mL

• Object 1

• Object 2

• Object 3

Tags

NGSS.MS-PS2-2

Which of the following is a physical property?

• Melting

• Burning

• Souring

• Tarnishing

What state of matter is the least likely to resist compression?

• Solid

• Liquid

• Gas

• Plasma

Which of the following is a homogeneous mixture?

• H2O

• Chicken Noodle Soup

• NaCl Solution

• Sand in a beaker