Energy
BONUS! 500 points!
The ability to do work.
What is the gravitational constant for earth?
v
What is speed (in physics)?
The energy associated with the position of an object and the forces acting upon it.
What is potential energy?
16,000 deciJoules is equal to this many HectoJoules.
The three main types of energy.
What are kinetic energy, potential energy, and radiant energy?
The equation that relates mass, kinetic energy, and speed of an object.
What is KE = (1/2)mv2?
The energy of an entire object moving.
What is whole-body kinetic energy?
BONUS! 500 points!
The four fundamental forces in nature.
What are gravitational, weak nuclear, electromagnetic, and strong nuclear forces?
The kinetic energy of a 5.0 kg object moving at 4.0 m/s.
What is 80 J?
1 Newton x 1 meter
What is 1 Joule?
The equation that relates mass, potential energy, and height.
What is PE = mgh
The type of motion demonstrated when an object moves in space, changing its position.
What is translational motion?
This force holds galaxies together and determines planetary orbits.
What is the gravitational force?
A man holds a 0.025 kg penny out from the top of the Empire State Building. The building is 381 m tall. This is the amount of energy the penny has.
What is 93 J?
The energy lost by one object equals the energy gained by the other.
What is the law of conservation of energy?
The equation that relates mass, energy, and the speed of light.
What is E=mc^2?
The type of motion in a circle with the center of the circle OUTSIDE of the object.
What is circular motion?
These two forces are unlimited in their maximum range.
What are gravitational and electromagnetic forces?
A 5.0 g arrow is shot at 60. m/s. This is its energy.
What is 18 J?
The man who determined that matter can be converted into energy, and vice versa.
Who is Albert Einstein?
What is speed of light?
The type of energy resulting from an object spinning or rolling around an internal axis.
What is rotational kinetic energy?
This force attracts electrons to atomic nuclei and binds atoms together into molecules.
What is the electromagnetic force?
A racecar speeds around the track at 50. m/s. If we know the car has a kinetic energy of 3,037.5 kJ, this is the mass of the car.
What is 1500 kg?