UCM Concepts
UCM Math
Gravitation Concepts
Gravitation Math
FBD
Drag
Name the Movie
Geo Guesser
100
What does UCM stand for?
Uniform Circular Motion
100
What is the centripetal acceleration on a ball moving in a 1m vertical circle that has a period of 1s?
100
If you move further from the earth's surface what happens to the acceleration due to gravity?
It gets lower
100
What is the force of gravity of a 10kg object that is at seas level?
98 N
100
What is the FBD for a ball rotating in a vertical circle at the bottom of it's path?
100
What are the two names Drag force is also known as?
Air Resistance or Air Friction
100
Star Wars: A New Hope
100
Atlanta
200
What stays constant during UCM?
Tangential Velocity
200
A ventilation fan has blades 0.25 m long rotating at 20 rpm. What is the tangential velocity of each blade tip?
0.52 m/s
200
What is Newton's Universal law of gravitation?
200
Planet Z is 10,000 km in diameter. The acceleration due to gravity on Planet Z is 8.0 m/s2.
What is the mass of Planet Z?
3*1024 kg
200
What is the FBD for a ball rotating in a vertical circle at the top of it's path?
200
What two forces must be equal for a an object to be at terminal velocity?
Drag force and Force of Gravity
200
Wizard of Oz
200
Boston
300
What are 3 examples of forces that can cause centripetal motion?
Normal, Friction, gravity, etc. or a combination of these forces
300
A 0.40 kg object is swung in a circular path and in a vertical plane on a 0.5 m length string. If the tangential velocity at the bottom is 4.0 m/s, what is the tension in the string when the object is at the bottom of the circle?
16.7 N
300
If your mass is doubled what happens to your gravitational force?
it doubles
300
Two spheres with mass mA= 800 kg and mB=600 kg are separated by 0.25 m. What is the net gravitational force (in both magnitude and direction) from them on a 2.0 kg sphere located 0.2 m away from A and 0.15 m away from B?
4.4x10-6 N
300
What is the FBD for a car going over the crest of a circular hill?
300
What are the two drag equations and when do you use each?
300
Fast and Furious (1)
300
Cairo, Egypt
400
What happens to the centripetal force on an object if it moves twice as fast?
The centripetal force quadruples
400
A roller coaster, loaded with passengers, has a mass of 2000 kg; the radius of curvature of the track at the bottom point of the dip is 24 m. If the vehicle has a speed of 18 m/s at this point, what force is exerted on the vehicle by the track?
4.66 * 104 N
400
If your distance from earth is tripled and your mass is halved what happens to your gravitational force?
1/18th as much
400
A 50 kg satellite circles planet Cruton every 6 hours. The magnitude of the gravitational force is 80 N. What is the mass of planet Cruton?
8.6*1024 kg
400
What is the FBD of a roller coaster car going through a vertical loop at the top of the loop?
400
A 3.00-g leaf is dropped from a height of 2.00 m above the ground. Assume the net downward force exerted on the leaf is F = mg - bv, where the drag factor is b = 0.0300 kg/s.
Calculate the terminal speed of the leaf.
0.98 m/s
400
The Dark Knight
400
Cape Town, South Africa
500
What is the normal force on a car going into the bottom of a circular hill?
500
A satellite is in a circular orbit about the Earth at a distance of one Earth radius above the surface. What is the velocity of the satellite?
5,600 m/s
500
If I am orbiting earth and then move to a higher orbit what happens to my velocity?
It decreases
500
A planet requires 300 Earth days to complete its circular orbit about its sun, which has a mass of 6.0 x 1030 kg. What is the orbital radius of the planet?
1.9*1011 m
500
What is the FBD for a mint sitting on rotating turntable?
500
A 0.142-kg baseball has a terminal speed of 42.5 m/s. If a baseball experiences a drag force of magnitude
FD = Cv2, what is the value of the constant C?
7 * 10-4
500
2001 A Space Odyssey
500
Melbourne, Australia