| Question |
 |
|
| Answer |
|
|
| When calculating angles in circular motion we use units of? |
Radians |
| To convert from degrees to radians we multiply by |
pi/180 |
| To convert todegrees from radians multiply by |
180/pi |
| Angular velocity is.... |
the angle swept out by a radius per unit time, symbol w |
| The units for angular velocity is |
rad/s |
| angular velocity = |
angle change/time |
| angular velocity is also related to |
the frequency of a system |
| angular velocity also = |
2 x pi x f |
| The time period of a system can be eqauted to |
1/f or 2pi/angular velocity |
| The linear speed of an object moving in a circle is related to |
its angular velocity |
| linear speed = |
radius x angular velocity |
| The force on an object moving in a circular path is also called |
centripetal force |
| the size of a centripetal force is given by either |
F=mv^2/r or mrw^2 |
| centripetal acceleration = |
v^2/r or rw^2 |
Biology Lab Midterm
