8th Grade Scientific Notation: Adding & Dividing Challenges
Quiz
•
English, Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Anthony Clark
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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^-9 kg. If she has 5.0 x 10^3 particles, what is the total mass of all the particles in kg?
3.5 x 10^-6 kg
1.0 x 10^-4 kg
5.0 x 10^-3 kg
1.75 x 10^-5 kg
Tags
CCSS.8.EE.A.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car travels a distance of 2.4 x 10^5 meters in 1.2 x 10^2 seconds. What is the average speed of the car in meters per second?
2500.0 m/s
1500.0 m/s
2000.0 m/s
3000.0 m/s
Tags
CCSS.8.EE.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The population of a small town is approximately 1.2 x 10^4 people. If the population increases by 3.5 x 10^3 people, what is the new population in scientific notation?
1.0 x 10^4
1.8 x 10^4
1.2 x 10^4
1.55 x 10^4
Tags
CCSS.8.EE.A.4
4.
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 10^2 bacteria, how many bacteria will there be after 6 hours?
2.0 x 10^2
4.0 x 10^2
16.0 x 10^2
8.0 x 10^2
Tags
CCSS.8.EE.A.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A satellite is orbiting Earth at an altitude of 4.0 x 10^7 meters. If it needs to descend to an altitude of 1.0 x 10^6 meters, how much lower does it need to go in meters?
1.0 x 10^6 meters
5.0 x 10^7 meters
2.0 x 10^7 meters
3.9 x 10^7 meters
Tags
CCSS.8.EE.A.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A factory produces 2.5 x 10^4 widgets per day. How many widgets does the factory produce in 30 days?
5.0 x 10^5
2.5 x 10^5
7.5 x 10^5
1.0 x 10^6
Tags
CCSS.8.EE.A.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A comet travels at a speed of 2.0 x 10^4 km/h. How far does it travel in 3.0 x 10^2 hours?
1.2 x 10^7 km
8.0 x 10^5 km
6.0 x 10^6 km
4.5 x 10^6 km
Tags
CCSS.8.EE.A.4
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