 Homework: Read pgs. 51-53: Review notes: and begin Force packet- pages 1-4 due for check in on Tuesday  Do Now: Write down homework, put force packet.

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Presentation transcript:

 Homework: Read pgs : Review notes: and begin Force packet- pages 1-4 due for check in on Tuesday  Do Now: Write down homework, put force packet away, Open notebooks to page. 10  Today I will… create a diagram that demonstrates why objects accelerate during free fall…  Identify Newton’s 3 Laws of motion

 The greatest velocity a falling object reaches- when the force of air resistance equals the weight of the object.  Air resistance increases with Velocity ◦ A falling object will eventually fall fast enough that the upward force-air resistance and downward force –gravity become equal. (**REMEMBER**)When forces are balanced  no acceleration  the velocity (speed) remains constant (even).

 2C: How would your weight change on the surface of an Earth- Sized Planet whose mass was greater than Earth’s? Why? ◦ Your weight would be greater because the gravitational force is greater  3A.Why does an object accelerate when it falls toward the Earth’s surface? ◦ Gravitational force causes the object to accelerate toward the Earth  3B: How does the mass of an object affect its acceleration during free fall?  An objects mass has no effect on its acceleration during free fall.

 ZY--Force and Gravity & Friction ZY--Force  Fk- school house rock Fk-