What is the purpose of a conversion factor?

Physics Measurement and Significant Figures Quiz

Quiz
•
Science
•
8th Grade
•
Medium
Ahmed Nour
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To decrease the measurement value
To increase the measurement value
To make units cancel
To change the measurement system
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many significant figures are in the measurement 138.2 mm?
2
3
4
5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding 3.86 m and 2.4 m, rounded to the correct significant figures?
6.2 m
6.3 m
6.4 m
6.5 m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about significant figures?
All zeros are significant
Only nonzero digits are significant
All nonzero digits are significant
The last digit is always significant
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does precision refer to in measurements?
How close a measurement is to the true value
The degree of exactness of a measurement
The average of multiple measurements
The range of possible values
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for converting 90 km/h to m/s?
90 km/h * 0.621371
90 km/h * 3600 s/h
90 km/h * 0.27778
90 km/h * 1000 m/km
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the uncertainty in the measurement (14.6 ± 0.2) cm?
0.1 cm
0.2 cm
0.4 cm
0.3 cm
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