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Measurement and Scientific Methods

Total questions: 40

Worksheet time: 2hrs 35mins

Name
Class
Date
1.

The SI unit of mass is...

a)

pound

b)

kilogram

c)

gram

d)

ounces

2.

57.0 cm = ________ m

a)

5700 m

b)

0.57 m

c)

570 m

d)

5.7 m

3.

The average kinetic energy in an object...

a)

weight

b)

temperature

c)

heat

d)

volume

4.

What is the correct measurement of significant figures?

a)

21 mL

b)

21.4mL

c)

23 mL

d)

21.50 mL

5.

Which student was most precise? The actual mass of a beaker is 49.35 grams. Students performed three trials to measure the mass of the beaker.

a)

Bri

Trial 1: 49.00g

Trial 2: 48.89g

Trial 3: 48.50g

b)

Kyle:

Trial 1: 49.25g

Trial 2: 50.00g

Trial 3: 50.05g

c)

Cash:

Trial 1: 51.02g

Trial 2: 51.98g

Trial 3: 50.60g

d)

Emory:

Trial 1: 48.52g

Trial 2: 48.00g

Trial 3: 49.30g

6.

A 15.3 g substance has a volume of 3.2 cm^3. What is the density of the substance to the correct significant figures? Density = Mass/Volume

a)

0.209 g/cm^3

b)

5.0 g/cm^3

c)

4.78 g/cm^3

d)

4.8g/cm^3

7.

334 kg = __________ dg

a)

0.0334 dg

b)

3,340,000 dg

c)

334,000 dg

d)

0.334 dg

8.

What is this measurement in meters and significant figures?

a)

2.32 m

b)

0.0230 m

c)

0.023 m

d)

0.0232 m

9.

Scientists report mass in what measurement?

a)

gram

b)

kilogram

c)

Newton

d)

pound

10.

What is this measurement to the correct significant figures?

42.67g + 40.987g

a)

84 g

b)

83.7 g

c)

83.66 g

d)

83.65 g

e)

83.657 g

11.

The volume of a solid is measured in what unit?

a)

mL

b)

L

c)

cm3

d)

cm

12.

Amount of space an object occupies...

a)

volume

b)

mass

c)

temperature

d)

width

13.

Calculate to the correct significant figures: 0.08/0.568

a)

0.1408

b)

0.14

c)

0.1

d)

0.140

14.

Which is true?

a)

Graduated cylinders measure volume; the amount of matter in an object

b)

Graduated cylinder measure volume; the amount of space an object occupies

c)

Graduated cylinders measure liquids; the amount of mass in an object

d)

Graduated cylinders measure mass; the amount of kinetic energy in an object

15.

Calculate to the correct significant figures:

(4.5 X 105) (6.30 X 108)

a)

28.35 X 1013

b)

2.8 X 1014

c)

28 X 1013

d)

2.84 X 1014

16.

Calculate to the correct significant figures:

(3.978 X 103) / (5 X 105)

a)

8 X 10-3

b)

8.0 X 10-3

c)

8 X 10-2

d)

7.96 X 10-2

17.

Calculate to the correct significant figures.

9.872 - 8.4

a)

1.472

b)

1.47

c)

1.5

d)

1.4

e)

1.40

18.

Convert 2.5 hours to seconds.

a)

9000 s

b)

900 s

c)

0.00069s

d)

90,000 s

19.

Convert 0.75 miles to kilometers.

a)

0.00075 km

b)

1.2 km

c)

0.47 km

d)

750 km

20.

Convert 3.5 pounds to kilograms.

a)

0.0035 kg

b)

3500 kg

c)

1.6 kg

d)

7.7 kg

21.

What is the difference between accuracy and precision in dimensional analysis?

a)

Accuracy is the closeness of a measured value to the true value, while precision is the closeness of measured values to each other.

b)

Accuracy is the closeness of a measured value to the median value, while precision is the closeness of measured values to the mode value.

c)

Accuracy is the closeness of a measured value to the average value, while precision is the closeness of measured values to each other.

d)


Accuracy is the closeness of a measured value to the maximum value, while precision is the closeness of measured values to the minimum value.

22.

Temperature is measured in ____ in lab, however, the SI unit for temperature is ___

a)

degrees Celsius, degrees Fahrenheit

b)

degrees Fahrenheit, degrees Celsius

c)

degrees Celsius, Kelvin

d)

Kelvin, degrees Celsius

23.

Tom observed the average speed of a snail in his yard to be 0.45 cm/s. What is the snail's speed in m/min?

a)

16.2 km/min

b)

0.75 km/min

c)


0.27 m/min

d)

0.0125 km/min

24.

Round the following to 3 significant figures: 370862

a)

371

b)

371000

c)

370.

d)

370000

25.

Measure as accurately as possible and to the correct significant figures.

a)

29 cm

b)

29.0 cm

c)

29.15 cm

d)

29.2 cm

26.

8.14 × 32 =

Answer to the correct significant figures.

a)

300

b)

260.5

c)

260.48

d)

260

27.

0.0600

How many significant figures?

a)

1

b)

3

c)

4

d)

5

28.

To change 5 milligrams to grams, you...

a)

multiply by 1000

b)

divide by 1000

c)

multiply by 100

d)

divide by 100

29.

 

To Convert 43 m to cm, you

a)

multiply by 100

b)

divide by 100

c)

multiply by 1000

d)

divide by 1000

e)

multiply by 10

30.

(9.432 × 10-32) / (2.37 × 10 14) =

Calculate to the correct significant figures.

a)

3.98 X 10-18

b)

4.0 X 10-46

c)

3.98 X 10-46

d)

4.0 X 10-18

31.

What is a measure of the amount of matter in an object?

a)

Density

b)

Mass

c)

Volume

d)

Weight

32.

Ashley measured the volume of a penny as 0.5 cm3. She looked up and found the actual volume of a penny should be 0.4 cm3. What is Ashley's percent error in her measurement?

a)

20 %

b)

25 %

c)

15 %

d)

80 %

33.

When adding numbers, what is the rule for significant figures?

a)

round to the lowest significant figures

b)

round to the lowest decimal place

c)

round to the total number of numbers you see

d)

round to the tenths place

34.

Using the temperature scale on the left of the thermometer, what is the correct temperature measured to the correct significant figures?

a)

24.0 C

b)

24 C

c)

23.99 C

d)

25 C

35.

Lynn measured the speed of a toy car. She measured the distance the car traveled as 3.25 meters and the time it took the car to travel as 2.3 seconds. What is the cars speed calculated to the correct significant figures?

Speed = distance/time

a)

1.413043478 m/s

b)

1.41 m/s

c)

0.71 m/s

d)

1.4 m/s

e)

1 m/s

36.

0.00450 X 1014 written correctly

a)

4.5 X 1011

b)

4.50X 1017

c)

4.50X 1011

d)

4.5 X 1017

37.

Measuring tool A allows us to make more precise measurements than measuring tool B.

a)

True

b)

False

38.
Round 1009 to three sig figs
a)
100
b)
101
c)
1010
d)
1000
39.
How many significant figures does the following number have: 1740200
a)
2
b)
1
c)
3
d)
5
40.

Which Student is the most Precise?

a)

Student A

b)

Student B

c)

Student C

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