Chapter 1 Flashcards
1
Q
Tool to accurately measure small objects
A
Micrometer
2
Q
How to read micrometer
A
- gap is opened wide and then closed around object to be measured
- read highest scale division that can be seen on fixed scale
- take the reading from the rotating scale and divide it by 100
- add the two together
- that is the reading in mm
3
Q
time for one oscillation
A
period
4
Q
period
A
time for one oscillation
5
Q
density =
A
density = mass/volume
6
Q
how to measure volume
A
regular solid: width x height x depth
irregular solid : displacement can
7
Q
simplest method of finding mass
A
beam balance
8
Q
an object will float if….
A
it has a lower density than the medium
9
Q
an object will sink if…
A
it has a higher density than the medium
10
Q
Giga (G)
A
10^9
11
Q
Mega (M)
A
10^6
12
Q
Kilo (k)
A
10^3
13
Q
Deci (d)
A
10^ -1
14
Q
Centi (c)
A
10^ -2
15
Q
Milli (m)
A
10^ -3
16
Q
Micro ( μ)
A
10^ -6
17
Q
What is zero error
A
Any indication that a measuring system gives a false reading when the true value of a measured quantity is zero
18
Q
Define density
A
Density is mass per unit volume
