When atoms join to make a new molecule:
A) They become one large atom.
B) The electrons and protons swap position.
C) Energy is absorbed or released in the process.
D) The nucleus of the larger atom absorbs the smaller atom.
[Ques. 2] If someone works with electricity, which of the following measurements may be used?
A) Kilocalories and therms B) Foot-pounds and Newton meters
C) BTUs and calories D) Amperes and watts
[Ques. 3] How does natural gas move through pipelines from the well head to the end user thousands of miles away?
A) Natural gas moves naturally through the pipes because it is lighter than air.
B) Solar energy is used to operate electric fans that help move the gas through the pipelines.
C) Large compressor pumping stations move the gas through the pipelines under high pressure.
D) Natural gas moves through the pipelines due to the extreme pressure on natural gas underground.
[Ques. 4] A technician pushes a 50-lb box 4 feet in 2 seconds. The rate of work is:
A) 50 lb. B) 50 lb 4 ft = 200 ft-lb.
C) 4 ft-lb. D) 200 ft-lb/2 s= 100 ft-lb/s.
[Ques. 5] Kinetic energy is:
A) Purely theoretical.
B) Stored energy.
C) Energy in motion.
D) An energy source with promise that has not found practical application.
Quick Reply
