Unit 1 Quiz 1 Review

Presentation

•

Chemistry

•

10th - 12th Grade

•

Medium

•

NGSS

HS-LS2-2, HS-ESS1-4

Standards-aligned

John Oglesby

Used 12+ times

FREE Resource

16 Slides • 35 Questions

Chem - Unit 1 Review

Whats on the Quiz?

1 question (5 pts). Independent & Dependent Variables
5 questions (20 pts). Scientific Notation
Counting Significant Figures 3 questions (9 pts)
Sig Figs Calculations 2 questions (10 pts)
Rounding Sig Figs 2 questions (6 pts)
Units of Measure 5 questions (20 pts)
Conversions in metric system 5 questions (20 pts)
Dimensional Analysis. 2 questions (10 pts)

Some text here about the topic of discussion

Multiple Choice

The variable the is changed on purpose is..

Constant

Control

Independent Variable

Dependent Variable

Multiple Choice

The variable that is being tested, counted, or measured and is responding to the independent variable is known as

Control

Constant

Independent Variable

Dependent Variable

Multiple Choice

Mrs. Goodwyn wants to see if studying time affects test scores...She gives all 6 classes the same assignment but assigns different study times. What is the independent variable?

Study time

Test score

Same assignment

Multiple Choice

Mrs. Goodwyn wants to see if studying time affects test scores...She gives all 6 classes the same assignment but assigns different study times. What is the constant?

Study Times

Test Scores

Same Assignment

Multiple Choice

Which brand of paper towel will absorb the most liquid? What is the independent variable?

Brand of paper towel

Amount of water absorbed

Multiple Choice

Mythbusters did an experiment to see if driving with windows down or with the AC on gets better gas mileage. They drove the same car twice down a track, going the exact same distance both times- once with the windows down, once with the AC on. Then they measured the amount of gas used by the car each trip.

What is the dependent variable in this experiment?

the amount of gas used

Using the AC or having 2 windows down.

using the exact same car and the exact same driving distance

Scientific Notation

Multiple Choice

Change from standard form to scientific notation: 12,000,000

12.0 x 10⁷

0.12 x 10⁷

1.2 x 10⁶

1.2 x 10⁷

Multiple Choice

Change from standard form to scientific notation: 450,000

4.5 x 10⁵

45 x 10⁵

4.5 x 10⁴

4.5 x 10⁶

Multiple Choice

Change from standard form to scientific notation: 0.004078

4.078 x 10^-3

4.078 x 10³

40.78 x 10^-4

.4078 x 10^-2

Multiple Choice

Try to change the number back to standard form: 3.97 x 10^-2

0.000397

0.0397

0.0000397

0.397

All non-zero numbers are significant

EG: 932 has three significant figures

54.2 has three significant figures

Multiple Choice

How many significant figures are there in 3987?

Leading Zeroes are never significant

0123 has three significant figures

0.0005 has one significant figure

Multiple Choice

Number of significant figures in 0.0003402 are

Trailing zeros with decimals are significant

100 has one significant figure

100.20 has five significant figures

32.20000 has seven significant figures

Multiple Select

Choose all numbers that have three significant figures

530

503

53.20

0.0520

0.5020

Trailing Zero's when there is no decimal, ARE NOT significant

Fill in the Blanks

Identify, how many significant figures does the following number have?

$32000$

Multiple Choice

How many significant figures: 0.012 km

Multiple Choice

How many significant figures: 450 m

When Multiplying / Dividing measurements

It's all about the number of Significant Figures... and you cant have more than the least

3.50 m x 3.1 m = ?

The answer must be rounded to the least number of significant figures.

3.50 has 3 sig fig's

3.1 has 2 sig fig's

The answer must be 11 m²

When add/subt measurements it's all about the number of decimal places... and you can't have more than the least

3.25 cm + 2.1 cm = ?

The answer must be rounded to 1 decimal place

Answer = 5.4 cm

Multiple Choice

How many Significant Figures in the number below?
0.456

Multiple Choice

How many Significant Figures in the number below?
4,500

Multiple Choice

Solve & Round to Correct Sig Figs.
4.5 + 4.32 =

8.8

8.7

8.0

Multiple Choice

Solve & Round to Correct Sig Figs.
4.5 x 2.34 =

10.52

10.5

Base Units

Volume = Liters = L
Mass = Grams = g
Length = meters = m

The Metric System

Multiple Select

Which units are the BASE units in the metric system? Check all that apply.

Meters

Liters

Grams

Inches

Miles

Converting Units

Changing a Metric Units to another Metric Unit
Moving BIG unit to small Multiply
Moving small to BIG Divide

Multiple Choice

42 L = ? mL

4,200

.0042

4.20

42,000

Multiple Choice

40 mL = ? cL

400

4000

0.4

Multiple Choice

3 cm = ? mm

300

3000

0.3

Multiple Choice

75.2 cm = ? m

0.752

7.52

75.2

752

Dimensional Analysis

Multiple Choice

The length of a desk is 3.5 feet. How many centimeters is the length?

(2.54 cm =1 inch)

120.23

106.68

117.12

Multiple Choice

Convert 300 feet/hour into inches/second

100

1000

Multiple Choice

The human esophagus us about 250 mm log. How long is that in inches?

10.64 in

9.84 in

11.35 in

8.84 in

Multiple Choice

A bicycle has a speed of 6.00 m/s. What is its speed in km/h?

21.6 km/h

16.67 km/h

2.16 km/h

1.67 km/h

Multiple Choice

Jackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the nearest whole number.)

5,280 feet = 1 mile

95 feet per second

59 feet per second

.45 feet per second

40 feet per second

Multiple Choice

How many miles will a person run during a 10.0 kilometer race?

6.2 miles

6.21 miles

1.61 miles

1.6 miles

Multiple Choice

The moon is 250,000 miles from earth. How many feet is that?

47, 348 ft.

47 ft.

1.32 X 10⁹ft.

1.3 X 10⁹ft.

Multiple Choice

How many minutes are in a school year, 187 days?

269,280 min.

16, 200 min.

16, 156 min.

269,000 min.

Multiple Choice

Which conversion factor would be needed?

Multiple Choice

Which conversion factor would be needed?

Chem - Unit 1 Review

Whats on the Quiz?

1 question (5 pts). Independent & Dependent Variables
5 questions (20 pts). Scientific Notation
Counting Significant Figures 3 questions (9 pts)
Sig Figs Calculations 2 questions (10 pts)
Rounding Sig Figs 2 questions (6 pts)
Units of Measure 5 questions (20 pts)
Conversions in metric system 5 questions (20 pts)
Dimensional Analysis. 2 questions (10 pts)

Some text here about the topic of discussion

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