INTRO TO CIRCULAR MOTION

-Pass in any late field trip
permission slips/ $$.

Today: Review:

How
do we describe circular motion?

What causes objects to move in a circle?

How can we calculate acceleration?

Why is there no such thing as centrifugal force?

Finish
Circular Motion Discovery Lab

Homework:

Concept
Sheets

Tomorrow: Review free fall, make
amusement park equipment.

Reminder: Leave 8:15 am
Thur, bring own lunch and money, Mr. T assigns busses, weather looks good so
far!

Circular Motion Discovery Lab

Swing a mass on a string
around in a circle, while being held by another mass:

Vary the hanging mass/weight,
swinging mass, and circle radius. (3 each)

Use the hanging mass to
calculate the centripetal force (weight).

Use the circumference and the
period to calculate the linear velocity.

Find the relationship between
velocity and force. (same mass, radius)

Find the relationship between
radius and velocity. (same weight, mass)

Find the relationship between
mass and velocity. (same weight, radius).

Hang Swing Total Circle OneRev Centr Linear

Mass Mass Time Radius Period Force Circumference Velocity