Ch 5- Circular Motion Flashcards Preview

Physics 20 > Ch 5- Circular Motion > Flashcards

Flashcards in Ch 5- Circular Motion Deck (5)
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1
Q

Centripital force

A

Center seeking force
Must be included with centripital accel
Net force

2
Q

Periodic motion/ period

A

Repeated motion
Period- seconds/cycle
Frequency- cycles/second (Hz)
Rpm-Hz (divide by 60)

3
Q

Horizontal circle problems

A

Fn=Fg
Fn-Ff=muSFn
Fg-mg

4
Q

Vertical circular problems

A

Top of circle: Fc=Fn(Ft) + Fg
Bottom of circle: Fc=Fn(Ft) + Fg
Min speed?

5
Q

Instantaneous velocity in circular motion

A

The velocity of an object moving in a circle is the tangent line at that point
Same speed, different velocity (direction changing constantly)
When drawing vectors, change in velocity (centripital accel) always points to center of circle (resultant)