1.
The metric system of measurement is based on the number
a.
1.
b.
10.
c.
12.
d.
100.
2.
The basic unit of length in the metric system is the
a.
foot.
b.
meter.
c.
mile.
d.
kilometer.
3.
How many meters are there in a kilometer?
a.
10
b.
100
c.
1,000
d.
10,000
4.
The kilogram is the basic metric unit of
a.
length.
b.
mass.
c.
weight.
d.
volume.
5.
Mass and weight are different because
a.
mass depends on the force of gravity.
b.
weight depends on the force of gravity.
c.
weight depends on the amount of matter an object contains.
d.
mass does not depend on the amount of matter an object contains.
6.
The amount of space an object takes up is its
a.
volume.
b.
density.
c.
mass.
d.
length.
7.
If a shoe box measures 6 cm high, 7 cm wide, and 20 cm long, what is its volume?
a.
420 cm
b.
420 cm3
c.
840 cm3
d.
840 cm
8.
To calculate the density of an object, you would
a.
divide its mass by its length.
b.
divide its mass by its volume.
c.
divide its volume by its mass.
d.
multiply its mass by its volume.
9.
The SI unit of time is the
a.
second.
b.
minute.
c.
hour.
d.
day.
10.
The SI unit of temperature is the
a.
metric degree.
b.
degree Fahrenheit.
c.
degree Celsius.
d.
kelvin.
11.
A metal washer has a mass of 0.27 g and a volume of 0.1 cm3. What is its density?
a.
0.027 g/cm3
b.
0.37 g/cm3
c.
2.7 g/cm3
d.
2.7 g/cm2
12.
If scientists cannot obtain exact numbers, they may rely on a(n)
a.
calculation.
b.
estimate.
c.
guess.
d.
assumption.
13.
The closeness of a measurement to its true value is its
a.
significant figures.
b.
estimate.
c.
accuracy.
d.
precision.
14.
You measure the length of a string three times and get values of 34.0 cm, 34.1 cm, and 34.2 cm. The actual length is 39.0 cm. What can you say about your measurements?
a.
They are accurate but not precise.
b.
They are precise but not accurate.
c.
They are both accurate and precise.
d.
They are neither accurate nor precise.
15.
To determine how close to the true value an experimental value is, you would use
a.
a precision calculation.
b.
a median.
c.
significant figures.
d.
a percent error calculation.
16.
A line graph shows
a.
changes in the responding variable only.
b.
changes in the manipulated variable only.
c.
how the responding variable changes in response to the manipulated variable.
d.
how the manipulated variable changes on its own.
17.
The horizontal axis of a graph runs
a.
left to right.
b.
up and down.
c.
vertically.
d.
diagonally.
18.
The most important lab safety rule is
a.
always wear a lab apron.
b.
always wear safety goggles.
c.
design and conduct your own experiments without asking your teacher.
d.
always follow your teacher檚 instructions and textbook directions exactly.Science Help [please help me]?
1) 10
2) Meter
3) 1,000
4) Weight(maybe)
5) Weight depends on the force of gravity.
6) mass.
7) 840cm3
8) b
9) b
10) b
11) d
12) b
13) c
14) b
15) a
16) b (maybe)
17) a.
18) b
this is so easy -.-; how can ya not do it.Science Help [please help me]?
zzzzz
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