Question

1. shelley accidentally drops a test tube and it shatters. what two things should she make sure to do? (2 pts)
2. what should you always do at the end of a lab? (1 pt)

part 3 measurement: write the answer for the following questions. you do not have to use complete sentences. (1 pt each)

1. what is the si unit for mass?
2. what is the si unit for length?
3. what is the si unit for temperature?
4. measure the length of the pencil using the ruler below. make sure to include units in your answer.

15.6cm
part 4 data analysis: use the following data to answer questions #30 - 33. point values are indicated next to each question.
two lab groups measure the length of their notebook four different times. here is their data:
group a:
trial 1 trial 2 trial 3 trial 4
26.5 cm 27.5 cm 27.0 cm 27.7 cm
group b:
trial 1 trial 2 trial 3 trial 4
25.5 cm 25.0 cm 23.0 cm 29.5 cm

1. what is the average length of group a’s data? (2 pts)
2. what is the average length of group b’s data? (2 pts)

© it’s not rocket science 2017
1 oz = 28.35g.
19520 oz · 28.35g=(553,392 g)
writing numbers into scientific notation. make sure to show all work and (2 pts each)
time
= 365.25 days
day = 24 hrs
1 min = 60 s
1 hr = 60 min

Explanation:

Step1: Answer question 24

Notify instructor and clean up properly.

Step2: Answer question 25

Clean up the lab area.

Step3: Answer question 26

The SI unit for mass is kilogram (kg).

Step4: Answer question 27

The SI unit for length is meter (m).

Step5: Answer question 28

The SI unit for temperature is kelvin (K).

Step6: Answer question 29

As shown, the length is 15.6 cm.

Step7: Answer question 30

For Group A, sum of data: $26.5 + 27.5+27.0 + 27.7=108.7$ cm. Average = $\frac{108.7}{4}=27.175$ cm.

Step8: Answer question 31

For Group B, sum of data: $25.5 + 25.0+23.0 + 29.5 = 103$ cm. Average = $\frac{103}{4}=25.75$ cm.

Answer:

1. Notify instructor and clean up.
2. Clean up the lab area.
3. kilogram (kg)
4. meter (m)
5. kelvin (K)
6. 15.6 cm
7. 27.175 cm
8. 25.75 cm