Part I: Velocity Lab

What is the velocity of a golf ball if
it takes 1.5 seconds to roll 3.0 meters? (Show your work)

Why do you NOT start timing the ball while
it is still rolling down the ramp?

What are replications and why did we do
them?

What is the purpose of the ramp (aka inclined
plane) in this lab?

What trend did we establish in the data?

Part II: Lever Lab

What was the ringstand used for in this
experiment?

What three variables were manipulated in
this lab?

1)

2)

3)

If you have a mass of 30 grams on one side
at a distance 20 cm from the fulcrum, how far down the fulcrum would you
have to place 50 g from the fulcrum for it to balance? (Show your work!)

Why were the products (i.e., mass times
distance) of the two sides of the level not equal to one another most of
the time?

Name a possible source of error in this
lab.

Part III: KE and PE Lab

What variable did we manipulate by using
a marble and a ball bearing?

How much potential energy would a 10 kg
cannon ball have at the top of a 2 m high ramp? (Show your work!)

How much kinetic energy is in a 5 g bullet
moving at 100 m/s? (Don’t forget to convert! And show your work!)

What is one of the first things you would
do when you get a balance out to measure how much something weighs.

Why was the KE always less than the PE?

Name a possible source of error in this
lab.

Part IV: Graphing

Plot the following data series on a graph:

MarbleBall Bearing

HeightPEHeightPE

(cm)(J)(cm)(J)

1051012

20102024

30153036

40204048

On your graph, include the following:

Title

Labeled axes

Key (marble = hollow circles, ball bearing
= solid circles)

Why is the Height of the Ramp on the x-axis?

Why is the Potential Energy of the Ball
on the y-axis?

Why do we draw a single straight line connect
the points?

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