Circular Motion
What is the equation for centripetal acceleration?
ac = v2/r
What is the equation for the Universal Law of Gravitation?
Fg = G x (M1M2 / d2)
How many solo albums has Harry Styles released?
Three
Give an example of oscillatory motion
Possible answers: mass on a spring, pendulum, tuning fork vibrating, car antenna vibrating, etc
If the particles of the medium are vibrating to and fro in the same direction of energy transport, then the wave is a ____ wave.
Longitudinal
What is the equation for centripetal force?
Fc = m x (v2/r)
Suppose that two objects attract each other with a gravitational force of 16 N. If the mass of object 1 was doubled, and if the distance between the objects was tripled, then what would be the new force of attraction between the two objects?
3.6 N
What is baby Yoda's real name?
Grogu
A pendulum makes exactly 40 vibrations in 20.0 s. Its period is ____. (Be cautious of the units.)
0.5 s
The main factor which effects the speed of a sound wave is the ____.
properties of the medium
If the velocity of a car going around a curve is doubled, and the radius increased by 1/3, what is the new centripetal force acting on the car?
Centripetal Force = 3x greater
Calculate the attractive force between 2 physics students that each have a mass of 70 kg if they are a distance of 5 m apart.
1.31 x 10-8 N
How many stars are in our solar system?
Just one - the Sun
If a wave’s frequency becomes larger, what happens to its wavelength?
It becomes smaller
A periodic and repeating disturbance in a lake creates waves which emanate outward from its source to produce circular wave patterns. If the frequency of the source is 2.00 Hz and the wave speed is 5.00m/s then the distance between adjacent wave crests is ___ meter.
2.5 m
A roller coaster car loaded with passengers, has a mass of 500.0 kg; the radius of curvature of the track at the bottom point of a dip is 12.0 m. The vehicle has a speed of 18.0 m/s at this point. What is the centripetal force?
13,500 N
Calculate the weight of a 70 kg physics student on the surface of the moon. The moon has a mass of 7.34 x 1022 kg and a radius of 1.71 x 106 m.
117 N
What Netflix show takes place in Hawkins, Indiana?
Stranger Things
What is the frequency of a wave that has a speed of 0.4 m/s and a wavelength of 0.020 meter?
20 Hz
What is the acceleration of a piece of dust on an old-fashioned record album, 15 cm from the center, if the record is spinning at 33.3 rpm
19.2 m/s2
Using the data given below, calculate the gravitational force between the Sun and Pluto.
Pluto mass: 1 x 1023 kg
Sun mass: 1.991 x 1030 kg
Average distance between Sun and Pluto: 5.91 x 1012
G = 6.67 x 10-11 N m2/kg2
3.8 x 1017 N
What was the highest-grossing movie of all time?
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