Chemistry, 29.08.2020 21:01 moowalden1239
Donna has observed that her father can control the speed of their grandfather clock by adjusting the height of the weight on the end of the pendulum. Donna thinks that the pendulum will move faster when the weight is lowered, and wants to test her idea. Donna gets a stopwatch and measures the time it takes for the pendulum to swing twenty times when the weight is moved to its lowest position. Donna begins to move the pendulum up by 1cm and continues to measure the time for 20 swings of of the pendulum. Donna records her data (see below).
PositionTime (seconds)
123.23
221.56
320.33
419.00
518.02
Questions:
What is Donna's hypothesis?
What is the test (independent) variable?
What is the outcome (dependent) variable?
What are 2 constants in her experiment?
Answers: 1
Another question on Chemistry
Chemistry, 21.06.2019 18:00
What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon
Answers: 1
Chemistry, 22.06.2019 06:00
An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g
Answers: 3
Chemistry, 22.06.2019 17:40
Areaction in which products can react to re-form reactants is
Answers: 1
Chemistry, 22.06.2019 23:30
The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
You know the right answer?
Donna has observed that her father can control the speed of their grandfather clock by adjusting the...
Questions
History, 26.01.2021 17:50
History, 26.01.2021 17:50
Biology, 26.01.2021 17:50
Biology, 26.01.2021 17:50
SAT, 26.01.2021 17:50
Mathematics, 26.01.2021 17:50
English, 26.01.2021 17:50
Social Studies, 26.01.2021 17:50
