Instructions
1) Type in your first and
last name in the “Name” box in the top-left corner.
2) Next type in your
teacher’s name in the “ID” box.
3) Then type in your school’s name in the
“Email” box.
4) Select the best answer for each question.
5) When you are finished
click the “Grade and Submit” button.
6) The grade will be emailed to your
teacher.
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1.
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A team of doctors developed a new type of cough syrup. This liquid medicine is
highly effective, but it is very important to take the correct amount. The correct dosage is
exactly 5 mL taken three times a day with food. Which tool would best help people measure
out the correct amount to use? a. | graduated cylinder | c. | A balance | b. | thermometer | d. | Microscope |
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2.
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A battery is designed to provide improved power supply in areas with extremely
low temperatures. Which test best determines if a prototype meets this goal?
a. | compare the power of the prototype to the power of other batteries under normal
conditions | b. | compare the power storage of the prototype to that of a standard battery at cold
temperatures | c. | compare the cost of materials for the prototype to the cost of the materials for a
standard battery | d. | compare the lifetime of the prototype to that of a standard battery in a wide range
of climate conditions |
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3.
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Scientists are designing a new antacid. The purpose of an antacid is to
neutralize stomach acid to help you feel better when you have an upset stomach. Which tool would best help scientists determine if the new antacid
is effective in neutralizing stomach acid? a. | Microscope | c. | litmus paper | b. | thermometer | d. | graduated
cylinder |
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4.
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A student built a prototype of a device that measures the acidity level of
water.
How can the student best test this device?
a. | Place a sample of pond water in the device to measure the acidity. Then also test the
acidity by using a pH strip. If the two measurements match, then it is working. | b. | Purchase a similar
device from another company. Disassemble their device to see how it was made. If their design is the
same as your design, then this is a good test. | c. | Place a magnet next
to the device, and attempt to attach the magnet to it. If the magnet sticks to the device, then the
device is functioning normally. | d. | Put batteries into
the device, press the power button, and see if it will power up. If yes, it is working correctly. If
no, it is not working correctly. |
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5.
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Imagine that you are testing a prototype of a new type of glue for
paper.
What would be the most logical way to test it?
a. | Place some glue on two pieces of metal. Then put these two pieces of metal together
to see if they will stick to one another. | b. | Place 0.5 grams on a single sheet of paper.
Then heat the paper to observe what happens to the glue. | c. | Place some glue on
two pieces of paper. Then put these two papers together to see if they will stick to one
another. | d. | Place some glue on two pieces of wood. Then put these two pieces of wood together to
see if they will stick to one another. |
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6.
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An engineering company is testing a new gasoline-electric hybrid motorcycle
prototype that is designed to use much less gasoline than regular motorcycles. Which procedure would best
confirm that the machine is working correctly?a. | Compare the color of paint on the new motorcycle with the colors on regular
motorcycles. | b. | Drive the hybrid motorcycle as fast as possible to determine its maximum
speed | c. | Contrast the gas mileage of the new motorcycle with a the gas mileage of a
regular motorcycle | d. | Place the new hybrid motorcycle in a museum so
that people can admire it |
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7.
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Medical researchers are designing a new medicine prototype to help relieve
symptoms of the common cold. In order to get the best results it is very important to take the
correct amount. The correct dosage is exactly 0.5 grams. Which tool would best help people measure out the correct amount to
use? a. | graduated cylinder | c. | thermometer | b. | A balance | d. | Microscope |
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8.
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A company designed a robotic lawn mower prototype to mow lawns without any human
supervision. They intend to sell this machine to landscaping companies and lawn and gardening stores.
Which of the following would be the BEST method to test this prototype?
a. | Place the mower on a field of freshly cut grass. Leave the machine there for three
hours. Return to the field later to pick up the mower. | b. | First: identify a need. Second: Develop several
designs, Third: Build a prototype, Fourth: Test the prototype, Fifth: Modify and retest the
prototype | c. | Design a computer simulation of the robotic lawn mower. Practice cutting the grass in
this simulated environment for one hour. | d. | Take the machine to a grassy field. Turn it on,
leave it there, and come back in two hours to see if the grass is
mowed. |
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9.
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A company makes a prototype of a new insulating material that covers the
electrical wires. The insulating material is designed to keep the wire cool when electricity is
conducted through it.
What tool should be used to test the insulating material to be sure that
it works properly?
a. | electromagnet | c. | hot plate | b. | thermometer | d. | spring scale |
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10.
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A company is working on a design for a new kind of air conditioning unit for
houses that will keep people’s homes cool but will also use less electricity than existing
units. Identify two
tools that they will most likely use when testing this prototype.a. | flask and a hot plate | c. | graduated cylinder and electromagnet | b. | spring scale and pH
Indicator | d. | thermometer and
ammeter |
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