
Redemption for Opener 8/29/16
Physics
10th - 11th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A ton of TNT will release 4.2 × 109 J (joules). Express this energy in megajoules.
4.2 x 1015 MJ
4.2 x 103 MJ
4.2 x 10-15 MJ
4.2 x 10-3 MJ
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In SI units, a parsec equals 3.086 × 1016 m. Express this distance in kilometers.
3.086 x 1019 km
3.086 x 1013 km
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The entire floor area of the Pentagon equals 0.344 279 km2 . Express this area in square millimeters.
3.442 79 x 10-6 mm2
3.442 79 x 105 mm2
3.442 79 x 1011 mm2
3.442 79 x 10-13 mm2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the number with 3 significant figures.
.003
20300
800
310
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Round the following number to 4 significant figures: 324 654.743
324 600.000
324 600
4.743
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