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Circular Motion
Newton's Law of Universal Gravitation
Motion in Space
Torque and Simple Machines
Sig Figs
100
The force that keeps planets in orbit and pulls objects towards the ground.
What is gravitational force?
100
Kepler's First Law states.
What is each planet travels in an elliptical orbit with the sun as a focal point?
100
The ability of a force to rotate an object around an axis.
What is torque?
100
12
What is two?
200
This force keeps an object moving in a circular path.
What is centripetal force?
200
True or False: Gravitational forces act between all masses.
What is true?
200
Kepler's Second Law states.
What is a planet sweeps an equal area in equal time intervals?
200
The distance from the force to the axis of rotation.
What is lever arm?
200
140
What is two?
300
The main difference between tangential and centripetal acceleration.
What is tangential acceleration is due to a change in speed, centripetal acceleration is due to a change in direction?
300
True or False: Gravity is a field force.
What is true?
300
Kepler's Third Law states.
What is T^2 is proportional to r^3.
300
Torque is ____ when clockwise and ______ when counterclockwise.
What is - and +?
300
1,400.00
What is six?
400
Find the centripetal acceleration given: vt= 9.0m/s r= 1.0m
What is 81m?
400
What is the gravitational force given: m1= 150kg, m2= 120kg, r= 1,600,000m
What is 4.7x10^(-19)?
400
Weight and weightlessness are caused by this.
What is gravity?
400
0.0010080
What is five?
500
What is the centripetal force given: m= 20.1kg vt= 3.07m/s r= 4.56m
What is 41.5N?
500
The gravitational constant is.
What is 6.673x10^(-11)?
500
What is the period given: r1= 350m m= 250kg
What is 3.2x10^8s?
500
What is torque given: F1= 15N, F2= 11N, d1=0.14m, d2=0.070m
What is -2.9Nm?
500
1,000,900.00
What is nine?