Lab to be done in the room.

Directions:
1.    Open the Forces 1D simulation on the PhET website (http://phet.colorado.edu).
2.    Click the “Graph Acceleration” button towards the bottom of the webpage.
3.    Turn friction in toolbar to “Off”.
4.    In the Applied Force box on the left of the screen enter “100”.
5.    First choose the refrigerator as your object. Click “Go”.
6.    Click “pause” after 4 seconds.
7.    Observe the acceleration graph and record the acceleration measurement shown on the graph.
8.    Change object to the crate. Repeat steps 5 - 7 for the remaining objects.

Copy this table in your Notes:

Object

Mass of Object (kg)

Acceleration (m/s2)

Observations of  acceleration

Objects to be used include the Refrigerator, File cabinet, Sleepy dog, Textbook

Questions to answered and handed in:
1.  What is the graph telling you?
2.  Which object has the most inertia?
3.  Does friction stay the same over all the objects?
4.  What happens if the object moves at a constant speed?



   



       

Using the factors that affect motion and the word list you developed yesterday; write a conclusion that describes the relationship between mass and acceleration.