Energy Question Preview (ID: 38839)


Energy Transfer And Transformation. TEACHERS: click here for quick copy question ID numbers.

What type of power plant transforms from Earth's core into electrical energy?
a) Geothermal
b) Hydroelectric
c) Nuclear
d) Mechanical

Windmills are used to convert wind energy into a useful form. What would be the best order of change to make this happen?
a) wind ---- mechanical --solar
b) wind --- mechanical-- electrical
c) wind-- thermal -- mechanical
d) wind --- solar -- electrical

What is the energy transformation that takes place with a box fan?
a) chemical ---- electrical
b) electrical --- mechanical
c) electrical --- sound
d) mechanical --- electrical

On a hot sunny day, rooms on the bottom floor of a house are much cooler than the attic. Which form of thermal energy flow causes this to occur?
a) conduction
b) radiation
c) convection
d) solar

On a hot sunny day you jump into a pool. The water is feels very cold at the bottom of the pool. Which form of thermal energy transfer causes this to occur?
a) solar
b) conduction
c) radiation
d) convection

When you are sitting in your car listening to your radio. what form of energy are your ears reacting to?
a) sound
b) light
c) heat
d) electrical

You notice that the bottom of your computer seem very warm after watching your favorite movie on Netflix. Which of the following best explains why?
a) the movie creates energy when it is turned on
b) some of the energy from the batteries is changed into heat
c) some of the energy from the batteries is reacting to friction
d) the movie receives heat energy from the person watching it

The photovoltalic cells on a calculator charge the battery by absorbing?
a) heat
b) solar
c) sound
d) mechanical

Jack rapidly rubs the palms of his hands together. What sequence describes the best path of energy transformation?
a) chemical ---mechanical-- heat
b) mechanical --- heat-- chemcial
c) heat -- mechanical -- chemical
d) mechanical --- nuclear --- heat

A foot warmer brick is placed in the bed to warm up your sheets on a cold night. Which form of energy transfer will best enable your feet to be nice and toasting as you go to bed.
a) conduction
b) radiation
c) convection
d) Mechanical

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