SI units
The unit for time
What is a second?
*Originally a convenient subdivision of a solar day, it is now defined as the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom
The rate of change of position
What is velocity?
The component of the net force pointing toward the center of a circular path
What is the centripetal force?
The force that prevent an object from penetrating a surface
What is the normal force?
A mathematical object with magnitude and direction
What is a vector?
The unit for distance
What is the meter?
Originally one ten-millionth of the distance from the equator to the North Pole, it is now defined as distance traveled by light in a vacuum during a time interval of 1/299,792,458 of a second.
The rate of change of velocity
What is acceleration?
What is v^2 / R?
The force provided by a rope or string
What is tension?
The colloquial name for the magnitude of the force due to gravity
What is weight?
The unit for mass
What is a kilogram?
Originally the mass of one liter of water, it is now defined in terms of Planck's constant (which has a value of 6.626 × 10^-34 J*sec)
The functional dependence of position on time (under constant acceleration)
What is quadratic?
The tangential speed of an object at radius R while rotating at angular frequency ω
What is Rω ?
The two forces acting on a ball flying through the air
What are air resistance and gravity?
The perfect game for demonstrating projectile motion and collisions
What is Angry Birds?
The unit for force
What is a Newton?
While velocity is a vector, its components are this mathematical object
What is a scalar?
As you increase the orbital radius of a planet (around a star), this happens to the frequency of the orbit.
What is decreases?
The net force on an object with zero velocity
What is unknown?
The net work done by the gravitational force in the case of a circular orbit
What is zero?
The units for G in Newton's law of universal gravitation
What are N * m^2 / kg^2 or m^3 / kg / s^2?
The maximum range of a projectile fired at 20 meters/second
What is ~40 meters?
The minimum radius of a circular rollercoaster loop to not exceed 10 g acceleration when entering at 30 meters/second
What is ~9 meters?
The mass of an object that is accelerating at 20 m/s2 under a net force of 10,000 N
What is 500 kg?
The airspeed of an unladen swallow
Which one? African or European?