WorksheetsTransfer of Energy
Total questions: 15
Worksheet time: 4hrs 45mins
The transfer of energy between objects of different temperatures is called :
heat
air conditioning
magnetism
electricity
The English unit for measuring heat which is equivalent to burning a wooden stick match is called the
REM
BBC
BTU
QUAD
The metric unit for measuring heat energy which is equal to raising the temperature of one gram of water one degree Celsius is called the :
QUAD
BTU
Joule
Calorie
Which of these units is equivalent to burning 40 million tons of coal ?
a QUAD
a BTU
a joule
a calorie
The relationship between heat and other forms of energy is called :
convection
distillation
magnetism
thermodynamics
True or False : Energy can neither be created nor destroyed. It can only change form.
True
False
Which of these is not an example of an energy transformation ?
riding a bike
a light bulb
a fan
studying for a test
Another name for "wasted heat energy" which occurs during every energy transformation is called :
entropy
efficiency
magnetism
thermodynamics
Which of these energy conversion will give off the most wasted heat when travelling to school ?
riding your bike (chemical to mechanical)
taking the school bus (chemical to mechanical)
A comparison (expressed as a percent) between the useful energy produces and the total amount of energy put into a system is called :
efficiency
calorimetry
thermodynamics
entropy
What is the efficiency of a 100 watt light bulb which produces only 10 watts of useful light ?
10 %
25 %
50%
75%
Which of these light bulbs is the most energy efficient ?
incandescent
Halogen
CFL
LED
True or False : A 100% efficiency rating can occur during an energy transformation
True
False
