Scientific method
Define test group
What is a study group that receives a new treatment?
Suzie's great-grandfather has heart failure. As a result, he needs to take 1500 mg of ramipril, but the pills only come with 60 mg of medication each. How many pills does he have to take each day?
What is 25?
What is energy?
What is the ability to do work?
What is the particle spacing of a solid?
What is low/small?
My toaster won't work; how can I test, using the scientific method, if it is my toaster, the outlet, or if my power is out?
What is some creative experiment the students designed specifically?
A student attends 4 years of school, 180 days/yr, for 6 hours each day. How many seconds did this student spend in school?
What is 15,552,000 seconds?
When do I use Q=mcΔT instead of Q=mΔHv or Q=mΔHv?
What is in a single state of matter?
What are the IMFs of a gas? (High, medium, or low)
What is low/small?
Students are placed into a study to see if paying them money incentivizes their ability to do work. What would the control group in this study?
What is the group who receives no money for their work/grades?
Convert a speed of 25 miles per hour into meters per second. (100 cm = 1 m, 1609 m = 1 mi)
What is 11.176 m/s?
What is the specific heat of tantalum if the energy input is 10000J, mass is 256g, and the change in temperature was 280K?
What is 0.1395?
Define matter
What is something that has mass and takes up space?
A research team wants to know if daily screen time affects sleep quality in teenagers. What would an independent variable be?
What is daily screen time?
Danny works as a nurse in the ICU. His patient needs to raise their potassium to maintain heart function. But, they cannot raise it too high, or their heart will stop. There is 0.4 g/mL stock solution of KCl available. How much should Danny give in mL if he needs to give 0.1 kg/lb and the patient is 25 lbs?
What is 6250 mL?
(25 lbs x (0.1 kg/1 lbs) x (1000 g/1 kg) x (1 mL/0.4 g))
What mass of water was raised from 20 to 70 degrees Celsius with energy input of 1000J? (c= 4.184)
What is 4.78 g?
I melted a beaker to a hot plate in college. When my TA had to hammer the glass off of the hot plate with a mallet, was this a physical or chemical change?
What is a physical change?
A research team wants to know if daily screen time affects sleep quality in teenagers. What would a dependent variable be?
What is sleep quality?
Will has a $75.56 grocery budget each week. But recently, pennies were discontinued and he liked to pay only in pennies. He has since switched to dimes. How many dimes should he plan on having on hand if he is $15.72 overbudget each week?
What is 913 dimes?
($75.56+$15.72 = $91.28/week)
($91.28 x (10 dimes / $1) = 912.8 dimes --> 913 dimes)
What amount of energy is released if the temperature of 30 g of tungsten drops from 200 to 20 degrees Celsius? (c= 0.134)
What is 718 J?
A research group studies fatty acids. They needed to protect an alcohol on the chain. When they react the chain to add a silyl group (R3Si) to the chain, is this a physical or chemical change?
What is a chemical change?