Gravity
Force Lab Worksheet
Objectives:
1.
To be able to understand the Newton’s Third Law of Gravitational
force.
2.
To be able to know the relationship of Mass and Force.
Procedure:
1. Go
to phet.colorado.edu/simulations
2. Select
Physics on the sidebar, Motion, and then Gravity Force Lab.
3. When
the simulation first starts, the objects the humanoids are holding are 38 kg
for the blue one and 25 kg for the red one.
4. Run
the Simulation experiment.
Questions:
l. Qualitative
Observations.
- Move the
masses closer. When they move
closer the force between them becomes?
(Greater/Less/the same)
- Move the
masses further apart. When the
masses move away the force between them becomes? Greater/Less/the same)
- Double Mass
1. When mass 1 is doubled the force
between them becomes? (Greater/Less/the same)
- Cut Mass 2
in half. When the mass is reduced
the force between them becomes?(Greater/Less/the
same)
- In any of
the situations did the forces ever differ in magnitude?
- In any of
the situations did the forces ever not point in opposing directions?
- What
physics LAW explains questions 5 and 6 (either give name or definition).
8.
Does it matter which mass increases?
9.
What type of relationship is there
between Mass and force?
10.
Explain gravitational force.
II.
Quantitative observations.
-Separate Mass 1 and
Mass 2 so that their centers of mass (black
dots) are 6 meters apart.
-Set Mass 2 to 30.0 kg.
-Start Mass 1 at zero
kg. Collect 10 data points with the
gravitational force being your dependent variable and your Mass 1 being
independent.
-Redo the experiment
but set Mass 1 to 30.0 kg and collect data on Mass 2’s relationship to force.
 |
| Image of the Gravity Force Simulation |
References:
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