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WorksheetsUnit 0: Essential Skills & Techniques of Science
Total questions: 35
Worksheet time: 9hrs 45mins
How should you WRITE the answer to (7.2 X 1015)(1.7 X 10-28)?
1.224E-12
1.224-12
1.224 X 10-12
Calculate (5.7 X 109)/(6.3 X 1020)
9.05 X 1028
9.05 X 10-12
9.05 X 1012
9.05 X 10-28
What is the correct way to record the length of the red bar shown?
3.4-cm
3.04-cm
3.43-cm
3.425-cm
You are reading the mass of a rock from a digital scale. The display steadily reads 19.7-g for the entire time you are taking the measurement. How should you record this measurement?
19.80-g
19.7-g
19.8-g
19.70-g
You are reading the mass of a rock from a digital scale. The display jumps between 25.3-g and 25.4-g while you are taking the measurement. How should you record this measurement?
25.3-g
25.4-g
25.35-g
25.40-g
What is the proper way to record the length of the black bar?
35-mm
35.0-mm
30.5-mm
30.55-mm
Convert 10.3-g to kg.
0.0103-kg
10,300-kg
103,000-kg
0.000103-kg
Convert 10.3-kg to g.
0.0103-g
10,300-g
103,000-g
0.000103-g
When drawing a complete graph, which of the following is important to include with your graph? Choose all that are correct.
A line or curve of best fit.
Labels on each axis with units.
A title.
A jagged line that "connects the dots".
Why is the graph shown NOT a complete graph? Choose all correct answers.
There is no line nor curve of best fit
One of the axes is missing the odd numbers on its scale.
There is no title.
The person graphing the data did not connect the dots.
The points don't line up properly.
A scientist wants to find the slope of the line of best fit for a set of data points. She has picked the points (10,7) and (8,4). What is the slope of her line of best fit?
1.5
0.67
0.167
6
The graph of a set of data with its line of best fit is shown. If you wanted to find the slope of the line of best fit, why shouldn't you use points A & B?
Thes points are clearly bad data points and should be ignored.
There is no problem using these data points, they will give you the slope of the line of best fit shown.
Neither point is on the actual line, so its slope will not match the slope of the line shown.
There is an odd number of data points, so you can't find the slope of the line show.
For the Rolling a Ball data shown, should you include the point (0,0) as a data point on your graph?
No, because this would mean that in 0-seconds the ball has rolled 0-m and this does not make physical sense for this experiment.
Yes, because this would mean that in 0-seconds the ball has rolled 0-m and this does make physical sense for this experiment.
Yes, because you should always include (0,0) as a data point.
No, because (0,0) is not an actual data point from the experiment.
After drawing a line of best fit for the graph shown, you calculated its slope. What are the units of your slope?
m
m/s
s/m
s
Which of the following is the largest number?
7,500
1.2 X 105
350,000
1.2 X 106
Write 0.000405 in scientific notation.
4.05 X 10-4
4.05 X 104
4.05 X 10-5
4.05 X 104
Write 6.7 X 108 in standard form.
0.000 000 067
6,700,000,000
6.78
670,000,000
Your best friend is trying to write a number in scientific notation. He writes his answer as 43.5 x 106. Why is this
not in scientific notation?
This number is actually written in scientific notation.
The 43.5 must be written as 4.35 and the power of 10 must be changed to a 7.
The number must be written as 43.56 to be in scientific notation.
This is written in standard form.
At its farthest distance from the Sun, the Earth is approximately 9.5 X 107 miles. How would you write this in standard notation?
95,000,000 miles
95,700 miles
950,000,000 miles
9.5 X 107 miles
The atomic radius of a hydrogen atom has been calculated to be 0.000 000 000 005 3 m. How would you write
this in scientific notation?
5.3 X 10-13 m
5.3 X 10-12 m
5.3 X 1012 m
5.3 X 1013 m
(6.7 ×1015)25.7 ×108
What is the answer to the above?
1.27 × 10−23
8.5 × 1037
0.127
8.5 × 10−8
For the Rolling a Ball data shown, what variable belongs on the x-axis when graphing?
Time
Distance Rolled
Diameter of the Ball
Both Time and Distance Rolled
For the Rolling a Ball data shown, what variable belongs on the y-axis when graphing?
Time
Distance Rolled
Diameter of the Ball
Both Time and Distance Rolled
In an experiment a student measured the mass of a given volume of an unknown liquid. The graph of the data and its line of best fit is shown.
Predict the mass of the liquid when its volume is 43-ml.
55 kg
30 kg
33 kg
65 kg
In an experiment a student measured the mass of a given volume of an unknown liquid. The graph of the data and its line of best fit is shown.
What is the slope of the line of best fit?
1.30 kg/ml
4.50 kg/ml
3.00 kg/ml
0.77 kg/ml
In the lab or in the classroom, if a fire erupts, immediately:
tell the teacher
get the fire extinguisher
pour water on the fire
open all the windows
Pranks and practical jokes in the classroom are:
allowed as long as they are funny and no one gets hurt.
allowed if you are done with your work.
never allowed.
allowed if you are alone in the lab.
Which of the following should NOT be worn during a laboratory activity? Choose ALL correct answers!!!
loose clothing
dangling jewelry
sandals
goggles
Personal eyeglasses provide as much protection as ________.
A face shield.
Safety goggles/glasses.
Splash proof chemical goggles.
None of these.
You are starting a lab and you notice the cord on the hot plate looks like the picture on the left. What should you do?
Plug it in and use it since it must have worked before.
Don't use it and tell the teacher immediately.
Plug it in and let the teacher know when they come around during the lab.
Don't plug it in, it is obviously damaged, and share the hot plate with the group beside yours.
How many meters are there in 6.8-cm?
0.068-m
0.0068-m
680-m
6800-m
Convert 35.25-m to millimeters.
35,250-mm
3525-mm
0.3525-mm
0.035 05-mm
A stopwatch reads 07:34.61. What is this in seconds?
454.610-s
454.61-s
202.610-s
202.61-s
A duck-billed platypus has a mass of 2.4-kg. How many grams is this?
2400-g
240-g
0.0024-g
0.024-g
How many kilograms are there in 2,400-g?
2.4-kg
24-kg
2,400,000-kg
240,000-kg
