Energy
_____ is the ability to make something move, happen or change.
energy
Resources used to produce heat...
FUELS: coal, natural gas, oil
What energy transformations occur in a television?
electric to light and sound
it is an abundant resource.
path that starts and stops at the same place
circuit
Where does energy come from?
examples: sun, light, heat, electric, solar, sound, wind, water, fossil fuels
Ms. Jones is building a snowman. She notices that every time she makes a snowball, her hands get cold. Why?
Heat from her hands is transferred to the snowball.
What energy transformation takes place in a light bulb?
electric energy to light
Coal improves the quality of life because...
it is a fuel resource.
Which component of a complete circuit creates the electric current that flows through the circuit?
battery
Name some nonrenewable resources.
coal, oil, petroleum, natural gas
Items that convert electric to heat energy only...
toaster, heater, iron
Which items main purpose is to transform electrical energy to heat energy?
iron, heater, toaster
Wind energy is good because...
renewable; produces electricity; doesn't produce pollution.
Which component of a complete circuit stops the electric current that flows through the circuit?
switch
Name some renewable resources.
Wind, water, sunlight
heat
Why is a microwave a correct example of an energy transformation?
Changes the form of energy.
Which fuels can be conserved by replacing its resources with renewable resources?
coal and oil
Which component of a complete circuit moves the electric current that flows through the circuit?
wires
Name different types of energy we learned about.
light, sound, heat, wind, solar, etc.
A restaurant manager requires his staff to warm serving plates in the oven before serving some of the meals. Why does the restaurant manager most likely require plate warming?
To keep the food warmer longer.
What energy transformations take place in a television?
electrical to sound, light, and heat
Why is alternative energy important?
replaces or supplements other fossil fuel sources.
Which statement best describes the role of the light bulb in a complete circuit?
The light bulb changes electrical energy into light and heat energy.