WorksheetsPhysicalScience_Chapter01_MidtermReview
Total questions: 25
Worksheet time: 15mins
Scientific theories can be changed or replaced when
new technology is invented
new discoveries are made that contradict what scientists previously understood
scientists decide to work on different problems.
scientists make models of events or objects.
All of the following are parts of the scientific method except:
changing results to fit your hypothesis.
developing a conclusion.
carrying out the experiment.
testing a hypothesis
All of the following terms describe the scientific method EXCEPT:
testable
repeatable
universal
biased
to measure an object's mass we use a:
scale/balance
beaker
graduated cylinder
thermometer
A set of precise measurements are:
measurements with the correct number of significant figures.
measurements that contain at least three significant figures.
close to the true value.
very close to each other.
Which metric unit would be best used to measure the height of a person?
millimeters
meter
kilogram
inches
Which metric unit would best used to measure the mass of a person?
pound
meter
kilogram
liter
Convert 1,250 millimeters to meters.
125 m
12.5 m
1.25 m
0.125 m
Which graph best shows a change in data over time?
bar graph
line graph
pie chart
all of the above
Which type of graph best shows a comparison of several items or events, and can be used to count?
bar graph
line graph
pie chart
all of the above
Which type of graph best shows data that are parts of a whole?
bar graph
line graph
pie chart
all of the above
Which of the values below represents the measurement 5,800,000,000 cm in scientific notation?
5.8 x 109 cm
58 x 109 cm
5.8 x 108 cm
58 x 107 cm
How many significant figures are in the measurement 73.070 g?
two
three
four
five
Accuracy is judged by:
how close a value is to the true value
the precision of the tool used for measurement.
the reputation of the scientist.
none of the above
The graph below represents the distance traveled by a car over the course of ten hours.
Based on this graph, determine the time required for this car to travel 270 kilometers.
6 hours
6 minutes
5 hours
7 hours
How many significant figures are in 50,200?
two
three
four
five
Which of the values below represents the measurement 0.0000043 g in scientific notation.
4.3 x 107 g
4.3 x 106 g
4.3 x 10-6 g
4.3 x 10-7 g
A scientific law is:
the same as a hypothesis.
a description of a natural event.
an explanation of a scientific observation.
the conclusion of a scientific experiment.
Mr. Cawley is trying to re-design the way students in class share and average their data from laboratory investigations. He has developed four ideas and written them below. Consider the scientific method, then review the proposals, and identify which would best for precision and accuracy.
each class shares only their data with each other, because less students will be involved.
all class periods share their data, because more data gathered produces a more reliable data set.
each class shares only their data with each other, because the odds of collect correct data improve.
all class periods share their data, because the procedure for data collection might be different between laboratory groups
A student’s height is 123 cm. Their height in meters is:
0.0123 m
0.123 m
1.23 m
12.3 m
Which metric prefix represents a value that is 1/100th of the base unit?
nano-
micro-
milli-
centi-
A loaf of bread has a mass of 1,362 g. The mass in kilograms is:
1.362 kg
1,362 kg
0.1362 kg
0.01362 kg
The speed of light is approximately 3 x 108 m/s. Which of the values below represents this measurement in standard notation?
300,000 m/s
3,000,000 m/s
30,000,000 m/s
300,000,000 m/s
A scientific theory is an explanation that:
has been published in a journal or book.
someone proposes without any scientific evidence to support it.
has been tested and verified by many scientists.
cannot be changed.
Which metric prefix represents a value that is 1,000 x the base unit?
deka-
hector-
kilo-
milli-
