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Teas Test > Basic Sceintifc Measurements And Measurements Tools 4.1 > Flashcards

Basic Sceintifc Measurements And Measurements Tools 4.1 Flashcards

1
Q

The nurse asks you to stand on a scale to determine your weight. Which of the following units would be used to express your weight?

Meters
Amperes
Seconds
Kilograms

A

Kilograms

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2
Q

You are weighing NaCl in a chemistry lab. You only need 0.0008 g NaCI. Your professor has asked that when you record numbers and units in your notebook, you keep within the preferred range of 0.01 to 1,000. Which of the following is how you would write 0.0008 g NaCI in your notebook?

0.8 mg
8 mg
0.8 kg
8 kg

A

0.8 mg

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3
Q

To measure 0.0008 g of NaCI, which of the following is the correct instrument to use?

Triple beam balance
Analytical balance
Graduated Cylinder
Metric Ruler

A

Analytical balance

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4
Q

Which of the following is the best instrument for measuring 231 ul of blood?

A 1-mL pipette
B Volumetric pipette
C Volumetric flask
D Micropipette

A

D Micropipette

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5
Q

Which of the following instruments would you use to measure the distance of two square blocks from your house?

A Surveyor’s wheel
B Measuring tape
C Sonar
D Flashlight

A

Surveyor’s wheel

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6
Q

Which of the following is not a base unit of the SI system of measurements?

Meter
Kilogram
Liter
Second

A

Liter

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7
Q

Hecta, milli, kilo, centi
Which of the following places the above prefixes in sequential order, from largest to smallest?

A Hecta, kilo, centi, milli
B Kilo, centi, hecta, milli
C Kilo, hecta, centi, milli
D Hecta, milli, kilo, centi

A

C Kilo, hecta, centi, milli

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8
Q

Which of the following is approximately the mass of an Asian elephant?

A 54,000 kg
B 5,400 g
C 5,400 kg
D 0.5400 g

A

C 5,400 kg

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9
Q

Which of the following is the final volume shown in the pipette?

A 20.0 kg
B 20.0 ml
C 19.8 mL
D 19.8 L

A

B 20.0 mL

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10
Q

You fire a laser beam from Earth to the moon. The returning beam is recorded 2.56 seconds later. (The speed of light is approximately 299,792 km/s.)
Which of the following is the distance between Earth and the moon using the laser beam data?

A 767,468 km
B 383,734 m
C 383.734 km
D 149.896 km

A

C 383.734 km

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11
Q

Kilo
Hectá
Deca

Deci
Centi
Milli
Micro

A

Kilo. 1,000
Hecta 100
Deca. 10

      1

Deci. 0.1
Centi. 0.01
Milli. 0.001
Micro. 0.0001

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12
Q

Which of the following values is appropriate for the height an adult human?
A. 1.5 mm
B. 1.5 cm
C 1.5 m
D. 1.5 km

A

1.5 m

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13
Q
  1. Which of the following is the meaning of the prefix
    “kilo”?

A 1,000
B. 100
C. 0.01
D. 0.001

A

1,000

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14
Q
  1. Which of the following tools could be used to measure the volume of a liquid sample?
    A. Triple-beam balance
    B. Flask
    C. Meterstick
    D. Ruler
A

Flask

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Teas Test (29 decks)

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