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11stst Six Weeks Review Six Weeks Review11stst Six Weeks Review Six Weeks Review
TEKS CHECK #1 TEKS CHECK #1
Conclusion: Hearing aids are an effective way to treat hearing loss.
A study was conducted to test the effectiveness of hearing aids. People with different types of hearing loss were included in the study. Which question would help in determining whether the conclusion above is valid?
A. What was the average age of the people in the study?B. What was the most common occupation of people in the
study?C. How many people were included in the study?D. How many people in the study had vision problems?
CHow many people were included in
the study?
Ap=mv
40x40=1600 kgm/s
• If your speed was 10 miles/hr and you sped up to 50 miles/hr in 20 hours, what was your acceleration?
– A. 2 m/s2– B. 10 m/s2– C. 20 m/s2– D. 25 m/s2
A50-10/20=2 m/s2
• Which student had the greatest momentum during football practice?
– A. James is a 100 kg running at 5.0 m/s– B. Teddie is 189 kg running at 5.3 m/s– C. Jordan is 123 kg running at 6.5 m/s– D. Blake is 115 kg running at 4.9 m/s
Bp=mv
189x5.3=1001.7
• What is the slope of a distance vs time graph?
– A. Speed– B. Acceleration– C. Momentum– D. Force
Aspeed!
Bp=mv
Bs=d/t
CThe
measurements are both precise and
accurate.
BGraduated cylinders are
more precise. You only need a container that goes to 50
mL, because you are
measuring 42.5 mL.
B 19.42 mL
B The
measurements were precise, but
not accurate.
D 10/14 = .714
km/hour
B M-is the most
constant speed (straight line)
B 240/3=80
C 190/2.5=76 m/s
B 15-6 /3 = 3 m/s2
341.8 g
A 36/4 = 9 m/s2
C Pointing away from you and
your partner
Who do you call in the case of an emergency?
• A. Ghost Busters• B. Ms. Kimm• C. Your teacher• D. Just Run!!
C your Teacher!!
What piece of lab safety equipment should you use if a
chemical gets in your eye? • A.
• B.
• C.
• D.
C C- Eyewash
station
C Running will feed oxygen to the fire.
A Report this data.
Why should you not wear contacts in lab?
• A. They don’t match your lab coat.• B. Danger fumes could get trapped
under the lenses and damage your eye.
• C. Goggles look way cooler.• D. Goggles will allow you to see
better than contacts.
B Dangerous fumes can get trapped
under the contact lenses.
C You can get a
chemical burn.
What should you do to your hair and sleeves before
starting an experiment? • A. Roll them up so they won’t catch on
fire or get dangerous chemicals on them.
• B. Cut them.• C. Tear them.• D. Roll them down so they won’t catch
on fire or get dangerous chemicals on them.
A Roll them up so they won’t catch on fire or
get dangerous chemicals on them.
C Data does not support
the hypothesis.
C Flush eyes with
water.
What types of safety equipment could be used
to put out a fire?
• A. Fire blanket, Fire extinguisher, Safety shower
• B. Fire blanket, Fire extinguisher, eyewash station
• C. Fire extinguisher, Fire hose, Salt• D. Fire blanket, Fire extinguisher,
Fire hydrate
AFire blanket, Fire
extinguisher, Safety shower
D To reduce
chance of error
DThe students are using one measuring device
(buret), which measures in small
increments.
1 2
Measures in smaller increments.
1 2
What is the purpose of the scientific method?
• A. to collect and analyze data• B. to form a hypothesis• C. to test a hypothesis• D. to ask a question
Cto TEST the HYPOTHESIS
What do gloves protect you from?
• A. Dangerous fumes• B. the Boogie man• C. Dangerous chemicals• D. Bacteria
CDangerous chemicals
Which of these pieces of equipment does NOT
measure volume of liquids?
• A.
• B.
• C.
• D.
DTest tubes do not measure volume;
there are no lines one them.
JNo one has proven
that dogs are happy if they wag their
tales.
Which statement can not be tested?
• A. Squirrels are better pets than racoons.
• B. Squirrels usually hibernate around the winter months.
• C. Racoons are more likely to eat insects than squirrels.
• D. There are more squirrels in the fall than there are in the summer.
ARacoons being a better pet is an
opinion.
BRemember…you want
the HARMLESS substance to be the one you’re pouring
into.
After you ask a question, what is the
next step?• A. Design an experiment• B. Collect and Analyze data• C. Form a hypothesis• D. Test your hypothesis
CForm a
hypothesis.
Which of these can NOT be tested?
• A. Cars are faster if they have more horsepower in their engines.B. Cars are better than trucks, because they look better.C. Trucks have larger engines than cars, because they are bigger in size.D. There are more truck models designed than car models.
B“Cars are
better than trucks” is an
opinion.
AFor chemicals, you only need
goggles, gloves, and an
apron.
In lab, if you are working with fire, paper, and a sharp object,
what signs should you be looking for?
• A. clothing protection safety, eye safety, hazardous chemical safety.
• B. clothing protection safety, eye safety, or sharp object safety.
• C. Clothing protection safety, eye safety, open flame safety, and sharp object safety
• D. Clothing protection safety and eye safety
What is the first step of the scientific method?
–A. State your hypothesis
–B. Make an analysis–C. Ask a question
CAsk a question.
AAsk your
instructor—always!
Which of these can NOT be tested?
• A. There are more breeds of cats than there are dogs. B. Cats eat more soft foods due their teeth structure and digestive system.C. Dogs run faster than cats, because their limbs are longer. D. Dogs are a man’s best friend.
DDogs are a man’s best friend is an
opinion.
ARepeat the experiment.
You are working with your lab partner, and your lab partner burns
his hand. How do you apply first aid?
–A. Apply direct pressure–B. Apply cold water and inform your instructor
–C. Use the safety shower–D. Apply cold compresses
Bgraduated cylinder
Cchemical burns
The detective found Mr. Boggs body on the floor. He gathered his material, conducted his
investigation, recorded his data, and presented his conclusion to the media. What step of the scientific method did he forget to
follow?
• A. form a hypothesis• B. perform the experiment• C. communicate results• D. collect data