Massive Marbles Analysis

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Presentation transcript:

Massive Marbles Analysis

Review: What was the one thing we changed on purpose for this experiment? What is the scientific name for the thing changed on purpose?

Review: What two outcomes were we measuring for this experiment? What is the scientific name for the measured outcome?

Review: What things did we keep the same for all trials? What is the scientific name for things kept the same?

Look at this data: Independent Variable Dependent Variable 5 g (1 marble) Avg Push Distance 12.5 cm 10 g (2 marbles) 26.9 cm 15 g (3 marbles) 51.2 cm

Look at this data: What is your claim? What happens to the push distance when the mass of marbles is increased? What could be the explanation for this phenomenon?

Look at this data: Independent Variable Dependent Variable cm/sec 5 g (1 marble) Avg Speed 8.3 cm/sec 10 g (2 marbles) 8.7 cm/sec 15 g (3 marbles) 8.5 cm/sec

Look at this data: What is your claim? (hint: The wobble in this data could be caused by human error. How could we get better data?) What happens to the speed when the mass of marbles is increased? What could be the explanation for this phenomenon?

Big Ideas: (write these down) More Mass creates More Force 3. Using Machines to measure and doing MANY repeated trials makes better data. 2. More mass does not change speed (because gravity pulls equally on everything)