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Circles
Units
Concepts
Formulas
Misc.
100
A line from the center of a circle to its edge
What is radius
100
The most common units of time
What are seconds
100
Increasing this number will cause the centripetal acceleration to decrease
What is radius
100

This formula describes the force of gravity between two objects

What is Fg=Gm1m2/r^2

100

This force acts as the centripetal force for the moon as it orbits the earth...

What is the gravitational force?

200
The formula for centripetal acceleration.
What is a=V^2/R
200

The units for G

What are Nm^2/kg^2

200
Without a net force inwards, objects will travel in this manner
What is a straight line
200

If tangential velocity is NOT given, this can be used to calculate it.

What is 2πr/T?

200

This is constantly changing when traveling in a circle even if the speed is not

What is velocity

300
This must be present for circular motion to occur
What is centripetal force
300

The most common units for centripetal acceleration

What is meters per second squared

300
Points in the same direction as a net force
What is acceleration
300

Critical speed at the top of a loop

What is Sqrt(rg)?

300

This force is the centripetal force for a car rounding a sharp, flat curve...

What is friction force

400
The direction of the net force in circular motion
What is towards the center
400

The most common unit for radius

What is meters

400
This line describes the direction of motion when traveling in a circle
What is a tangent line
400

Used to find gravitational acceleration of a satellite

What is g=GM/r^2

400

This value impacts how slippery a banked curve may be....

What is the coefficient of static friction

500
This causes an object traveling in a circle to move in a straight line tangent to the circle when the centripetal force is removed.
What is Inertia
500

The most common unit for speed in circular motion...

What is m/s

500
Will result in quartering the force of gravity between two objects
What is doubling the distance
500

To find the centripetal force of a conical pendulum (pig lab), you must identify these relationships (technically two answers)

What is TcosΘ=mg, so T=mg/cosΘ and (mg/cosΘ)sinΘ=(mv^2)/r

500

The force(s) that allows roller coasters to travel through the top of a loop at anything above the critical speed is...

What are the force of gravity and the normal force?