WorksheetsEnergy Week 5 Assessment (Practice)
Total questions: 15
Worksheet time: 9mins
What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?
thermal to electrical
mechanical to thermal
electrical to thermal
electrical to sound
Produced when a rise in temperature causes atoms and molecules to move faster and collide with each other.
thermal energy
conduction
convection
radiation
conductor
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
mechanical energy to chemical energy
thermal energy to mechanical energy
chemical energy to mechanical energy
mechanical energy to thermal energy
What is the energy transformation that occurs in an electric pencil sharpener?
mechanical energy to electrical energy
electrical energy to mechanical energy
radiant energy to sound energy
chemical energy to mechanical energy
The roller coaster cart has the most kinetic energy at position-
W
X
Y
Z
Which items would have this energy transformation: chemical energy -> thermal and light energy?
tanning bed
candle burning
wind turbine turning
solar calculator
What kind of energy is represented in the picture?
Thermal
Chemical
Sound
Kinetic
What energy transformation occurs as howler monkeys loudly call to each other in the forest?
Chemical --> Mechanical --> Sound
Chemical --> Sound --> Thermal
Sound --> Chemical --> Radiant
Mechanical --> Chemical --> Sound
Chemical, gravitational, and elastic are examples of types of what?
systems
potential energy
kinetic energy
engines
What is the SI unit of energy?
foot-pound
newton
watt
joule
An object moving in a gravitational field is observed to speed up. Explain why.
The object has gained electrical potential energy.
The object is falling in the gravitational field, so it has gained kinetic energy
The object has gained chemical potential energy.
.The object is rising in the gravitational field, so it has lost kinetic energy.
