Mastering Scientific Notation: Multiply & Convert Challenges
Quiz
•
English, Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A scientist measures the mass of a small particle as 3.5 x 10^-27 kg. If she has 4.2 x 10^3 particles, what is the total mass of all the particles in kg?
2.8 x 10^-24 kg
1.47 x 10^-23 kg
1.05 x 10^-23 kg
5.6 x 10^-22 kg
Tags
CCSS.8.EE.A.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car travels a distance of 1.2 x 10^5 meters in 3.0 x 10^2 seconds. What is the average speed of the car in meters per second?
350 m/s
400 m/s
500 m/s
300 m/s
Tags
CCSS.8.EE.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The population of a small town is approximately 2.5 x 10^4 people. If the population increases by a factor of 1.2, what will be the new population in scientific notation?
2.0 x 10^4
2.4 x 10^4
3.5 x 10^4
3.0 x 10^4
Tags
CCSS.8.EE.A.3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A factory produces 5.0 x 10^6 widgets in a year. If the factory operates for 2.5 x 10^1 years, how many widgets does it produce in total?
2.5 x 10^7
1.25 x 10^8
1.0 x 10^8
5.0 x 10^9
Tags
CCSS.8.EE.A.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A cell phone company sells 3.0 x 10^4 phones in one month. If they sell 1.5 x 10^2 phones each day, how many days did they sell phones?
200
150
250
300
Tags
CCSS.8.EE.A.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The distance from Earth to the nearest star is about 4.2 x 10^16 meters. If a spaceship travels at a speed of 3.0 x 10^5 meters per second, how long will it take to reach the star in seconds?
1.0 x 10^9 seconds
5.6 x 10^12 seconds
1.4 x 10^11 seconds
2.8 x 10^10 seconds
Tags
CCSS.8.EE.A.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A researcher is studying bacteria that reproduce every 2 hours. If the initial population is 1.0 x 10^3 bacteria, how many bacteria will there be after 6 hours in scientific notation?
8.0 x 10^3
1.0 x 10^4
2.0 x 10^3
4.0 x 10^3
Tags
CCSS.8.EE.A.4
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