Ch 1-5 Exam (natural science)
Study online at https://quizlet.com/_c4hl46
1. What two terms can be used to refer to a scientific idea theory and law of nature
or set of ideas that is supported by many observations
and experiments?
2. In 2020 during the height of the Covid-19 pandem- people who received the
ic, Sinovac Research and Development Co. devised a placebo (no dose)
phase III clinical trial of the SARS-CoV-2 vaccine in
adults. The purpose of this study was to evaluate the
efficacy, safety and immunogenicity of the experimen-
tal vaccine in healthy adults aged 18-59 years. Which
of the following best describes the control group for
this experiment?
3. You come back from camping, an activity you partici- walking barefoot around
pate in often. You discover that you have a rash on the the campsite may give me
soles of your feet--again! You think back to when you rash
had seen it once before--it was after camping at the
same site. Keeping in mind the scientific method, you
create a hypothesis. What would be the best hypothe-
sis?
4. A study is done on 100 ulcer patients to test the hy- TG: 5 patients with ulcers;
pothesis that Gastrocillin, a new antibiotic, will treat CG: 45 patients with ul-
ulcers. The treatment group (TG) of 50 receives Gas- cers.
trocillin; the control group (CG) of 50 receives a sugar
pill. What result would indicate that the hypothesis is
supported?
5. Does the process of science yield definitive answers? No, because in science all
ideas are subject to revi-
sion.
6. Identify patterns.
1/7
, Ch 1-5 Exam (natural science)
Study online at https://quizlet.com/_c4hl46
In which step of the scientific method does one look
for regularities or repetitions in collected data?
7. What did Dr. Warren believe was causing stomach ul- Helicobacter pylori
cers?
8. When we modify some aspect of our world and take carrying out an experi-
note of the outcome we are ment.
9. To test the "excess acid" hypothesis for ulcers, doctors That the set taking sugar
gave one set of ulcer patients antacids and the other pills had more ulcers.
set sugar pills. If the "excess acid" hypothesis was sup-
ported by the study, what would the outcome of the
study show?
10. Phrenology is an example of pseudoscience because
the "facts" about it are not
true.
11. You journey to another planet that is twice as massive That you weigh more than
as the Earth but that has the same diameter. You step on Earth because this
onto its surface with your bathroom scale in hand, and planet is more massive
you weigh yourself on the scale. What will you find? than Earth.
12. You walk around a track holding a very full cup of When you walk along the
coffee at a constant speed of 2.5 mph. Think about straight part of the track at
Newton's First Law. By this law when is the coffee least 2.5 mph.
likely to spill?
13. If an object changes its speed or direction, what can That an unbalanced force
you be certain of? is present.
14. Think back to the cart and pulley demonstration and It will be four times less
Newton's second law. A cart with mass m is connected because mass and accel-
2/7
Study online at https://quizlet.com/_c4hl46
1. What two terms can be used to refer to a scientific idea theory and law of nature
or set of ideas that is supported by many observations
and experiments?
2. In 2020 during the height of the Covid-19 pandem- people who received the
ic, Sinovac Research and Development Co. devised a placebo (no dose)
phase III clinical trial of the SARS-CoV-2 vaccine in
adults. The purpose of this study was to evaluate the
efficacy, safety and immunogenicity of the experimen-
tal vaccine in healthy adults aged 18-59 years. Which
of the following best describes the control group for
this experiment?
3. You come back from camping, an activity you partici- walking barefoot around
pate in often. You discover that you have a rash on the the campsite may give me
soles of your feet--again! You think back to when you rash
had seen it once before--it was after camping at the
same site. Keeping in mind the scientific method, you
create a hypothesis. What would be the best hypothe-
sis?
4. A study is done on 100 ulcer patients to test the hy- TG: 5 patients with ulcers;
pothesis that Gastrocillin, a new antibiotic, will treat CG: 45 patients with ul-
ulcers. The treatment group (TG) of 50 receives Gas- cers.
trocillin; the control group (CG) of 50 receives a sugar
pill. What result would indicate that the hypothesis is
supported?
5. Does the process of science yield definitive answers? No, because in science all
ideas are subject to revi-
sion.
6. Identify patterns.
1/7
, Ch 1-5 Exam (natural science)
Study online at https://quizlet.com/_c4hl46
In which step of the scientific method does one look
for regularities or repetitions in collected data?
7. What did Dr. Warren believe was causing stomach ul- Helicobacter pylori
cers?
8. When we modify some aspect of our world and take carrying out an experi-
note of the outcome we are ment.
9. To test the "excess acid" hypothesis for ulcers, doctors That the set taking sugar
gave one set of ulcer patients antacids and the other pills had more ulcers.
set sugar pills. If the "excess acid" hypothesis was sup-
ported by the study, what would the outcome of the
study show?
10. Phrenology is an example of pseudoscience because
the "facts" about it are not
true.
11. You journey to another planet that is twice as massive That you weigh more than
as the Earth but that has the same diameter. You step on Earth because this
onto its surface with your bathroom scale in hand, and planet is more massive
you weigh yourself on the scale. What will you find? than Earth.
12. You walk around a track holding a very full cup of When you walk along the
coffee at a constant speed of 2.5 mph. Think about straight part of the track at
Newton's First Law. By this law when is the coffee least 2.5 mph.
likely to spill?
13. If an object changes its speed or direction, what can That an unbalanced force
you be certain of? is present.
14. Think back to the cart and pulley demonstration and It will be four times less
Newton's second law. A cart with mass m is connected because mass and accel-
2/7
