Which light bulb saves more energy, CFLs or incandescent light bulbs?
CFLs
200
What is a renewable energy source?
A renewable energy source can be used again and again.
200
Which is better to use hydro or nuclear energy?
Hydro energy is better to use.
200
What can save more energy instead of driving a car?
walking, cycling, train, bus
300
Which renewable energy source is most used today?
hydro
300
Is sound kinetic or potential energy?
Sound is a form of kinetic energy.
300
Why do we have to save energy?
so we can live
400
Name three nonrenewable energy sources.
coal, oil, gas, natural gas, nuclear
400
Name three things that use energy in your kitchen.
Stove, refrigerator, lights, dishwasher
400
When a phone charger is plugged into an outlet but not plugged into a phone is it still using energy?
Yes it is. Unplug things even when they aren't being used.
500
Name three renewable energy sources.
solar, wind, biomass, water (hydro)
500
Name three kinetic and three potential forms of energy.
Some kinetic forms of energy are motion, sound, radiant, thermal and electric. Some potential forms of energy are chemical, nuclear, and gravitational.
500
How can we help save energy?
turning lights off, use washing machine when it is full, use lights only at night, have the heater on when it is really cold, use electric cars