It depends what they are measuring. A caliper does better with cylinders and things like that. A ruler does better with a flat distance between two marks.
A caliper is more accurate.
Ruler. Micrometers. Caliper.
use your ruler to measure the sides
It is less than a micrometer but greater than a non vernier caliper or ruler.
It depends on the type of ruler you are using. Depends if you are using a just metric unit ruler or if you are using a yard/meter stick. The measurements should be written along the edge of the ruler.
A ruler is used to make linear measurements like length, width and height.
It depends how accurately you can read the scale. A ruler would only be accurate to 1 mm. If the caliper has a vernier scale it should be ten times better
A caliper is more accurate.
The vernier caliper is more accurate that a plastic ruler. That's because the caliper is designed to be used and effectively read to measure small distances. And it does this better than a "regular" ruler because it has a vernier scale built into it. It's like an "amplified ruler" attached to the device that has increased accuracy. A link is provided to the Wikipedia article on the vernier caliper and to the one on the vernier scale. Check out the pictures and skim the details. You should be able to pick it up with a bit of thought.
ruler filler caliper etc..
Ruler. Micrometers. Caliper.
No. Odometer measure the traveled distance of a wheeled vehicle. A ruler or a vernier caliper would be better for measuring a baseball.
A caliper, a ruler and a tape.
get a ruler,measure it and write it on a piece of paper.
ruler
You measure it. A ruler and a caliper are useful.
just get a ruler and go to town.