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Scientific Notation Word Problems
Test Description: Deals with word problems
Instructions: Answer all questions to get your test result.
1) The bedroom of our house is 1,200 cubic meters. We know that there are 3.4 x 10^9 particles of dust per cubic meter. Write how many particles of dust are present in the bedroom of our house.
A
3.4 x 10^9 particles
B
4.08 x 10^12 particles
C
3.52 x 10^-7 particals
D
4.08 x 10^11 particles
2) Find out the weight of 6 billion dust particles, if a dust particle has a mass of 7.53 x 10^-10 g.
A
4.518 x 10^0 grams
B
6 x 10^9 grams
C
4.518 x 10^-3
D
7.96 x 10^18
3) Last month, my friend bought a computer. If it can perform 4.66 x 10^8 calculations per second, what is the performance of the computer in one minute?
A
7.77 x 10^6 calculations
B
2.796 x 10^10 calculations
C
4.66 x 10^9
D
4.66 x 10^8 calculations
4) In Australia, the people use approximately 2,240,000,000 pounds of bread in a year. How can we write this number in scientific notation?
A
2.24 x 10^9
B
2.24 x 10^7
C
22.4 x 10^10
D
.224 x 10^10
5) If a satellite travels 62.7 x 10^9 miles from Earth, write this in correct scientific notation
A
6.27 x 10^8
B
6.27 x 10^10
C
.627 x 10^11
D
6.27 x 10^9
6) 0.000065 is the wave length of yellow light. Can you express the measurement using scientific notation?
A
6.5 x 10^5
B
6.5 x 10^-5
C
65 x 10^-6
D
.65 x 10^-6
7) If the speed of light is 3 x 10^8 meters/second, how many seconds does it take light to reach the Earth, if the sun is 1.5 x 10^11 meters from Earth?
A
2 x 10^-3 seconds
B
1.503 x 10^11 seconds
C
1.497 x 10^11 seconds
D
5 x 10^2 seconds
8) Through research, scientists found that the body of a 200 lb person consists of 3.2 x 10^-5 lbs of zinc. In the bodies of 1,500 such people, how much zinc is present?
A
4.8 x 10^-2 lbs
B
9.6 x 10^0 lbs
C
2.13 x 10^-8 lbs
D
1.5 x 10^3 lbs
9) If we suppose that the volume of Lake Rason is approximately 2.56 x 10^5 km^3 and Lake Rason is 20 times the volume of Lake Rushy, write the volume of Lake Rushy (approximately).
A
1.28 x 10^4 volume
B
2.56 x 10^6
C
5.126 x 10^5 volume
D
2.56 x 10^5
10) Scientists discovered that the size of the Antarctic Ocean is 2.033 x 10^7 Km^2. How big is the Arctic Ocean, if the Arctic Ocean is ¾ of the size of the Antarctic Ocean?
A
5.12 x 10^7
B
2.72 x 10^7
C
2.032 x 10^7
D
2.033 x 10^7
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