Which concept refers to the SI unit of work or energy?
A) Escape energy B) Gravitational potential energy C) Work-energy theorem D) Joule Answer: D Explanation: Joule refers to the SI […]
Physics, Work, Energy & Power
Physics
Physics, Work, Energy & Power
Which physics term describes a force whose work depends on path and can dissipate mechanical energy?
A) Spring constant B) Potential energy reference C) Nonconservative force D) Negative work Answer: C Explanation: Nonconservative force refers to […]
Physics, Work, Energy & Power
Which physics term describes energy associated with position in a gravitational field?
A) Work-energy theorem B) Joule C) Gravitational potential energy D) Escape energy Answer: C Explanation: Gravitational potential energy refers to […]
Physics, Work, Energy & Power
Which physics term describes energy transferred by a force acting through displacement?
A) Elastic potential energy B) Power C) Mechanical work D) Watt Answer: C Explanation: Mechanical work refers to energy transferred […]
Physics, Work, Energy & Power
Which physics term describes the minimum energy needed to overcome gravitational attraction without further thrust?
A) Kinetic energy B) Work-energy theorem C) Escape energy D) Hooke's law Answer: C Explanation: Escape energy refers to the […]
Physics, Work, Energy & Power
Which physics term describes the SI unit of power?
A) Mechanical advantage B) Elastic potential energy C) Watt D) Energy conservation Answer: C Explanation: Watt refers to the SI […]
Physics, Work, Energy & Power
Which physics term describes useful output energy divided by input energy?
A) Energy transfer B) Positive work C) Efficiency D) Mechanical energy Answer: C Explanation: Efficiency refers to useful output energy […]
Physics, Work, Energy & Power
Which radiation has a shorter wavelength than visible violet light?
A) Infrared B) Microwaves C) Ultraviolet D) Radio waves Answer: C Explanation: Ultraviolet lies beyond violet on the short-wavelength side. […]
Physics, Work, Energy & Power
Which renewable resource taps heat from within Earth?
A) Geothermal energy B) Solar photovoltaic energy C) Wind energy D) Tidal energy Answer: A Explanation: Geothermal systems use Earth’s […]
Physics, Work, Energy & Power
Which scientific term best matches this description: Highest-energy, shortest-wavelength light, usually thought of as any light having energies greater than about 500 keV (hundreds of times the energy of visible light)?
A) X-rays B) gamma rays C) element D) helium Answer: B Explanation: The highest-energy, shortest-wavelength light, usually thought of as […]