1. Forces
Grab a laptop.

2. Grab a laptop
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3. Introduction to Forces
Contact
Normal
Net
Balanced/Unbalanced
Friction
Elastic
Tension
Strong
Weak
Non-Contact
Electrostatic
Gravitational
Magnetic
-Using the PHET simulations and the net, choose four forces and find a simulation that is an example of each.
-Give a brief description of how the simulation is an example of each force.

4. Forces introduction cont.
Using the PHET simulations and the net, you’ll describe four types of forces and how the simulations are examples of each.

5. No laptops for now.

7. Forces
A push or pull on an object.

8. Contact Force Non-Contact Forces
Gravitational—Force exerted because of mass.
Electrostatic
Magnetic
Normal—Force that prevents separate masses from occupying the same physical space.
Net—All forces acting on an object.
Friction—Force that opposes motion between two objects that are in contact.
Balanced/Unbalanced
Elastic
Tension
Strong
Weak

9. Balanced/Unbalanced Balanced Unbalanced
When all forces acting on matter cancel out.
Results in objects either being stationary (still) or motion if unbalanced.
Unbalanced
When a forces acting on a object are not cancelled out and the object is in motion.

10. Elastic
When a force is exerted on an object but the object can return to its original shape.
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11. Tension Force exerted on an object as it is pulled on opposite ends.
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12. Electrostatic
Force exerted because of the electrical charge objects have.
Results in an attraction or repulsion between two (or more) objects.
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13. Magnetic Force exerted due to magnetic field.
Can also result in attraction or repulsion.
Results from the alignment of spinning electrons within a material.

14. Strong/Weak Strong Weak
Force that holds protons and neutrons together (Nuclear Energy)
Weak
Force responsible for radioactive decay

15. Time Make sure these assignments are finished and turned in:
Temperature Research
Metric Research
Graphs: tile and carpet
Shuttle Data Graphs