PHYS-1100 Fall 2009 Exam 1 answer key

PHYS-1100 Fall 2009 Exam 1 answer key - Points awarded for...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Points awarded for a given response in ( ) Partial award is possible as shown on some parts. Only one award per question Question 8 (the missing one ) is a free 6 points 1. If a new distance unit, the smidgen , were to be defined as the distance a beam of light travels, in vacuum, in a time interval of one nanosecond, then a distance of one kilo smidgen would be about the same as a) 300 centimeters b) 300 millimeters c) 300 micrometers (6) d) 300 meters e) 300 kilometers 2. A typical CD-ROM is a plastic disk 12 cm in diameter , and 0.90 mm thick, with a hole in the middle of diameter 15 mm. How many such disks would be needed to have a total volume of plastic of 1 m 3 ? a) about 10 7 disks b) about 10 6 disks (6) c) about 10 5 disks d) about 10 4 disks e) none of the above are even approximately correct 3. The H1N1 influenza virus can be roughly approximated as a sphere 0.12 microns ( μ m) in diameter . How big a container would be needed to contain a mole of these critters? a) something about the size of a chem lab test tube b) something about the size of a beer can c) something about the size of a tailgater's ice-chest (2) d) something about the size of a gasoline tanker truck (6) e) something bigger than a tanker truck 4. Gold, which has a mass of 19.3 g for each cubic centimeter of volume, is the most ductile metal and can be
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

PHYS-1100 Fall 2009 Exam 1 answer key - Points awarded for...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online