Presentation on theme: " 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."— Presentation transcript:
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 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.
http://www.youtube.com/watch?v=LEs9J2IQI ZY--Force and Gravity & Friction http://www.youtube.com/watch?v=LEs9J2IQI ZY--Force http://www.youtube.com/watch?v=yHFtk6Si0 Fk- school house rock http://www.youtube.com/watch?v=yHFtk6Si0 Fk-