Projectile
Circular
Gravitational
Wildcard
Mr Hong Trivia
100
The term for the curved path that a projectile follows through the air
What is trajectory?
100
What is mv2/r?
What is Fc?
100
Newton's thought experiment on orbiting satelites.
What is a cannonball shot a the right height, angle, and speed?
100
A baby attached to a rope is swung horizontally in a uniform circular motion. Using the Doppler effect, how would the screams of the baby change for a stationary observer?
What is aaaAAAaaaAAAaaaAAA?
100
His daughter's name
Who is Emi Hong?
200
The formula for the range of a projectile.
x = uxt
200
The definition of period and its formula.
What is time taken for one revolution and T=2πr/v ?
200
What is C?
200
A planet has a mass of 4.39e78 kg, with a radius of 9.1e33 m, A child throws a rock at 10m/s at an angle of 60°. This planet rotates around a star that is 2.0e56 m away from the planet. find the speed of the rock relative to the star after 2s of flight in the solar system.
There is not enough information lmao
200
His current favourite singer/musician.
Who is Taylor Swift?
300
How does the range of a projectile change with an increase in the launch angle, assuming the initial velocity remains the same?
What is an increase in range?
300
Direction of torque
What is out of page?
300
Orbital velocity equation
300
Location of the lowest acceleration due to gravity.
Where is the equator?
300
Instruments he can play
What are saxophone, guitar, piano?
400
How is curvature of a projectile’s trajectory related to circular motion?
Gravitational force in a projectile is equivalent to centripetal force in circular motion.
400
A 7kg infant in a stroller weighing 3 kg, is headed straight at a brick wall 20 metres away. Turning sharply at 15 m/s, producing 80N of force, following a circular motion. Does the infant hit the wall?
Why does the baby hit the wall?
400
What is D?
400
If the magnitude of centripetal force on an object remains the same but the radius of its path is increased, what will be the resulting effect on its period?
What is an increase in period?
400
The university he attended
Where is University of Sydney?
500
Projectile X is launched from a height.
Projectile Y is launched from the ground with the same angle and initial velocity.
Compare the trajectories and list the factors influencing the path.
X has a further range and max height.
Factors: introducing an initial height thus increasing time of flight.
500
A 5kg baby is sliding from a major highway via a curved bank at 89.995 degrees (important) from the horizontal. The radius of the curve is 2500m.
What is the maximum velocity of the baby for it to safely go around the curve to 2 decimal places?
What is 3726.47m/s?
500
Astronauts orbiting Earth feel weightlessness even though gravitational accerlation is not zero. Explain.
What is freefalling?
500
The amount of work done on a 100 kg object undergoing uniform circular motion parallel to the earth's surface with a constant velocity of 20 m s-1 and at a radius of 0.5 m
What is none?
500
His wife's name.
Who is Mrs Quek?