I used to weigh...
...but now I weigh...
That's a long way from here...
Go Go Gadget Gravity!
You spin me right round...
Chuck Norris doesn't do trivia. Nothing he does is trivial.
100
This is the relationship between gravitational force and mass.
What is directly proportional? F ~ m1m2
100
This the relationship between gravitational force and distance.
What is an inverse square relationship? Force is inversely proportional to the square of the distance. F ~ 1/d^2
100
What is Newton's law of universal gravitation?
What is F = Gm1m2 / d^2
100
A car is traveling on a circular track. Friction points inward and causes it to go in a circle. In this case, friction is a ___________ force while the "force" experienced by the driver is the ______________ force.
A car is traveling on a circular track. Friction points inward and causes it to go in a circle. In this case, friction is a CENTRIPETAL force while the "force" experienced by the driver is the CENTRIFUGAL force.
100
Chuck Norris does not sleep. ___ ______.
Chuck Norris does not sleep. He waits.
200
I used to weigh 100 lbs. Then I went on a strict cupcake diet and tripled my mass. This is what I weigh now.
What is 300 lbs?
200
The new space station will orbit 1 Earth radius above of the surface of the Earth. That's a long way from here...this is how much my weight would change there.
What is 1/4 as much because the distance doubled?
200
In order to calculate force in Newtons while measuring masses in kilograms and distance in meters, this is value of the gravitational constant we need to include (G).
What is G = 6.67 x 10^-11?
200
Centripetal forces act toward the center of a circle. Centrifugal forces push outward from the circle. Which is not really a force and why?
CentriFUGAL is NOT A FORCE! It feels like it is only because an object's inertia is trying to make it go straight ahead.
200
Chuck Norris sleeps with a night light. Not because Chuck Norris is afraid of the dark, .....
Chuck Norris sleeps with a night light. Bot because Chuck Norris is afraid of the dark, but because the dark is afraid of Chuck Norris.
300
I used to weigh 200 lbs, then I traveled to a planet the same size, but twice as dense (twice as much mass in the same amount of space). This is what I weigh now.
What is 400 lbs?
300
A deep space rover is sent to a planet that has the same mass as Earth. When it lands the rover that normally weighs 100 lbs on Earth now weighs 400 lbs. What is the radius of this planet compared to the Earth?
What is 1/2 the radius of Earth because the rover weighs 4 times as much?
300
This is the gravitational force between two 2 kg physics books placed 2 m apart. (G=6.67 x 10^-11)
What is 6.67 x 10^-11 N?
300
A ball is being twirled on a string horizontally. Draw a diagram showing the path of the ball if the string breaks.
What is...directly forward, tangent to the circular path?
300
Fear of spiders is aracnophobia, fear of tight spaces is claustrophobia, fear of Chuck Norris is called...
Logic.
400
I used to weigh 150 lbs on Earth. I went to planet J-ski which has 1/10 the mass of Earth. This is how much I weigh now.
What is 15 lbs?
400
The radius of the Earth is 6,400,000 m and the ISS orbits about 340,000 m above that. If an astronaut weighed 150 lbs on Earth, what would they weigh on the space station?
What is 135 lbs? 6,740,000 m / 6,400,000 m = 1.05 x farther away. 1 / d^2 = 1 / 1.05^2 = 0.90 or 90% of their weight. 150 lbs x 90% = 135 lbs.
400
The newest Mars orbiter (100 kg) has to slingshot around the moon (7.36x10^22 kg) on its way to Mars. How much gravitational force is exerted on the orbiter if it passes within 3 x 10^6 m?
What is 54.5 N?
400
The force, and therefore the acceleration, of an object in circular motion always acts in this direction.
What is inward? Toward the center of the circle. CENTRIPETAL FORCE!
400
Chuck Norris doesn't need twitter...
Chuck Norris doesn't need twitter......he's already following you.
500
I used to weigh 200 lbs on Earth. On the 3 year journey to to Galgazar I ate nothing but freeze dried apricots and Tang and lost 1/2 of my body mass. Galgazar is 1.5 Earth masses and about 3 times the radius of Earth. This is how much I weigh on the surface.
What is 16.7 lbs?
500
How high does a satellite have to be off the Earth's surface to weigh 1/2 as much as it did on the surface.
What is 1.4 radii from center of the Earth, or 2.56 million meters. 1/2 = 1/d^2 2 = d^2 sqrt(2) = d
500
Both the sun and moon cause tides. Which has a greater effect and how many times greater? Mass of Earth = 5.98 x 10^24 kg Mass of Moon = 7.36 x 10^22 kg Mass of sun = 1.97 x 10^30 kg Distance Earth to moon = 3.84 x 10^8 m Distance Earth to sun = 1.50 x 10^11 m G = 6.67 x 10^-11
The sun has 175x the pull of gravity than the moon. Sun F = 349 x 10^20 N Moon F = 2 x 10^20 N
500
Explain why centrifugal force is not real.
INERTIA makes us want to move in a straight line.
500
Chuck Norris' tears cure cancer. Too bad he ___ ______ ____.
Chuck Norris' tears cure cancer. Too bad he he has never cried.
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