Week 2 quiz
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Science Sandbox
Used 1+ times
FREE Resource
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemist performs five trials to measure the boiling point of a liquid. The accepted boiling point is 78.5°C. The data collected is: 79.8°C, 79.7°C, 79.9°C, 79.8°C, 79.8°C. What can best be concluded about these measurements?
The results are accurate but not precise
The results are precise but not accurate
The results are both accurate and precise
The results are neither accurate nor precise
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two students are measuring the density of a liquid. Student A gets values of 1.02, 1.04, 1.03 g/mL, while Student B gets values of 0.89, 1.17, and 1.12 g/mL. The accepted value is 1.03 g/mL. Which statement is correct?
Student A shows high accuracy and high precision
Student A shows high precision but low accuracy
Student B shows high precision but low accuracy
Student B shows high accuracy but low precision
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an experiment, a group of students shoots arrows at a target. Most arrows land far from the center but are clustered together in one corner of the target. What does this indicate about the group’s performance?
High accuracy, low precision
Low accuracy, high precision
High accuracy, high precision
Low accuracy, low precision
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An engineer is designing a tank to hold a precise amount of fuel. If they can only measure one variable with high accuracy, which is most critical to minimize error in the final fuel calculation?
The density of the fuel
The height of the tank
The volume of the tank
The surface area of the tank
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A biology student is tasked with identifying an unknown metal cube by calculating its density. Which measurement is the most important to be both accurate and precise in order to identify the metal correctly?
Mass of the cube
Length of one side of the cube
Volume of the cube
Temperature of the room
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