7th Grade Scientific Notation: Adding & Converting Values

Quiz
•
English, Mathematics
•
7th Grade
•
Hard
Anthony Clark
FREE Resource
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. Convert this mass to scientific notation if it is increased by 2.1 x 10^-27 kg. What is the new mass in scientific notation?
5.6 x 10^-27 kg
3.0 x 10^-27 kg
4.5 x 10^-27 kg
6.1 x 10^-27 kg
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The distance from Earth to a nearby star is approximately 4.2 x 10^16 meters. If another star is 3.8 x 10^16 meters away, what is the total distance to both stars in scientific notation?
4.0 x 10^16 meters
7.5 x 10^16 meters
8.0 x 10^16 meters
9.0 x 10^16 meters
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A virus can replicate itself 1.5 x 10^6 times in one hour. If it replicates for 2 hours, how many times will it replicate in scientific notation?
3.0 x 10^7
3.0 x 10^6
1.5 x 10^6
6.0 x 10^6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A cell has a volume of 2.5 x 10^-9 liters. If you have 4 cells, what is the total volume of the cells in scientific notation?
1.0 x 10^-8 liters
1.0 x 10^-7 liters
2.5 x 10^-9 liters
5.0 x 10^-9 liters
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The speed of light is about 3.0 x 10^8 meters per second. If a spaceship travels for 5 seconds, how far does it travel in scientific notation?
2.5 x 10^9 meters
1.0 x 10^8 meters
1.5 x 10^9 meters
4.0 x 10^9 meters
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A small comet has a mass of 1.2 x 10^12 kg. If it gains an additional mass of 3.4 x 10^11 kg, what is the total mass of the comet in scientific notation?
1.2 x 10^12 kg
2.0 x 10^12 kg
1.54 x 10^12 kg
1.8 x 10^12 kg
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The population of a small town is 2.5 x 10^4 people. If the population increases by 1.5 x 10^4 people, what is the new population in scientific notation?
3.5 x 10^4
2.0 x 10^4
4.0 x 10^4
5.0 x 10^4
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