Module 1 Test Review

1

100

__________ is the study of matter and the changes it undergoes. 

Chemistry

200

 the metric unit for volume equal to one cubic decimeter

Liter

300

the number of all known digits reported in measurements plus one estimated digit

significant figures

400

a unit defined by a combination of base units

derived unit

500

___________ is a measure that reflects the amount of matter in a given sample. It differs from ___________ which takes into account not only the amount of matter present, but also the Earth's gravitational pull on matter. 

Mass, Weight

2

100

What is the correct representation of 702.0g in scientific notation?

a. 7.020x10²   b. 7.02x10³

c. 70.20x10²   d. 70.20x10¹

a. 7.020x10² 

200

(6.23 × 10⁶ kL) + (5.34 × 10⁶ kL)

1.157x10⁷

300

(4.68 × 10^–5 cg) + (3.5 × 10^–6 cg)

5.03x10^-5

400

(8.42 × 10⁸ kL) ÷ (4.21 × 10³ kL)

2x10⁵

500

(3.33 × 10^–4 m) × (3.00 × 10^–5 m)

9.99x10^-9

3

100

How many significant figures are there in a distance measurement of 20.070 km?

A) 2 

B) 3 

C) 4 

D) 5  

D. 5

200

Round the answer for the problem to the correct number of significant figures.

4.35 dm × 2.34 dm × 7.35 dm

74.8 dm

300

Round the answer for the problem to the correct number of significant figures.

4.78 cm + 3.218 cm + 5.82 cm

13.82 cm

400

Round the answer for the problem to the correct number of significant figures.

38,736 km ÷ 4784 km

8.097 km

500

(8.4 × 10⁶ L) ÷ (2.4 × 10^–3 L)

3.5x10⁹

4

100

a visual display of data

graph

200

the amount of mass per unit volume

density

300

An object with a mass of 7.5 g raises the level of water in a graduated cylinder from 25.1 mL to 30.1 mL. What is the density of the object?

1.5g/ml

400

Students used a balance and a graduated cylinder to collect the data shown below. Calculate the density of the sample. If the accepted density of this sample is 6.95 g/mL, calculate the percent error.

Volume and Mass Data:

Mass of sample 20.46 g 

Volume of water 40.0 mL 

Volume of water + sample 43.0 mL

1.87% is the percent error

500

(4.8 × 10⁵ km) × (2.0 × 10³ km)

9.6x10⁸

5

100

_________________ expresses any number as a number between 1 and 10 (known as a coefficient) multiplied by 10 raised to a power (known as an exponent).

Scientific Notation

200

______________ is a systematic approach to problem solving that uses ______________(ratio of equivalent values) to move from one unit to another.

Dimensional Analysis, Conversion Factor

300

(3.57 × 10² mL) – (1.43 × 10² mL)

2.14x10²

400

(9.87 × 10⁴ g) – (6.2 × 10³ g)

9.25x10⁴

500

tell me a joke to make me laugh

laughter