Question 3 (Multiple Choice Worth 5 points)
IM DRAWING IT
First, look at the upper scale which shows 10 mm, 20 mm, 30 mm, etc. Between which two marks is the length?
10 and 20?
wait no 0 and 8?
Yes. We know we have 7.?
Now to find the decimal part, see which tick mark of the vernier coincides with a tick mark of the 10, 20, 30 scale.
The tick marks of the vernier are the bottom marks. They are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and they mean tenths of mm.
Correct. That means 7.5 mm
ah ok so that would be the total answer correct?
Yes. You read the full mm units in the upper scale and the tenths of mm in the lower scale.
i clicked on the answer 7.5 and it said it was wrong:_(
I don't understand how that can be. The length is 7.5 mm
i know i have no idea either
Wait. I just noticed that the scale above starts to the right of the left caliper. Maybe it's 1 mm to the right, so the distance is really 8.5 mm.
ahh i was looking at that wrong too...