Elementary Energy Poll

Energy is needed to do which of the following?

• Make things move

• Make things grow

• Make heat and light

• All the above

Newton's First Law of Motion states that an object in motion stays in motion unless an outside force changtes its motion.

If you kick a ball, what force makes the ball stop?

• Gravity

• Friction

• Both Gravity and Friction

• Neither Gravity nor Friction

Why do most apples appear red to us?

• Read apples absorb the color red and reflect other colors

• Red apples reflect the color red and absorb the other colors

• Red apples reflect ultraviolet ratdiation

• Red apples absorb infrared radiation

Which of the following increases friction?

• Freezing rain on a road

• Wax on skis

• Air blowing up on an air hockey table

• Rubber soles on shoes

When you turn on a lamp, the electricity changes into what forms of energy?

• Light and Heat

• Sound and Light

• Electrical and Light

• Heat and Electrical

When you place a metal spoon in a pot of boiling water, the handle of the spoon becomes very hot even though it isn't touching the heat source. What kind of heat transfer is taking place?

• Conduction

• Convection

• Radiation

• All of the above

Why are some energy sources called renewable?

• They are clean and free to use.

• They take a long time to replenish by nature.

• They do not produce pollution.

• They can be replenished by nature in a short time.

In the United States, which energy source produces the most electricity?

• Solar

• Wind

• Petroleum

• Natural Gas

Which energy source provides most of our transportation needs?

• Solar

• Petroleum

• Biomass

• Coal

Which energy source means heat from inside the Earth?

• Hydropower

• Geothermal

• Coal

• Natural Gas