PS.5 Energy Summative Review

Multiple Select

Based on the bar graph, select the TWO true statements. (Look closely at the graph)

• Natural gas is the greatest source of electrical energy.

• Coal-Fired provides more than Petroleum-Fired but less than Hydroelectric.

• Nuclear is the greatest source of electrical energy.

• Hydroelectric provides the least electrical energy.

Multiple Select

Select one advantage (good) and one disadvantage (bad) of nuclear energy.

• Good: produces clean energy (no greenhouse gases)

• Bad: produces greenhouse gases

• Bad: produces radioactive waste

• Good: unlimited supply of uranium

Multiple Select

Select all of the nonrenewable energy sources.

• coal

• hydropower (water)

• nuclear

• solar

Multiple Choice

Select the correct statement to explain how heat moves (is transferred).

• from cold hand to hot mug

• from hot mug to cold hand

Multiple Choice

Which type of heat transfer is occurring in the pot with the water circulating up and down. (#3 in the picture)?

• convection

• conduction

• radiation

Multiple Choice

Select the equation that correctly represents total energy (TE).

TE is total energy

KE is kinetic energy

PE is potential energy

• TE = KE - PE

• TE = KE + PE

• TE = KE x PE

Multiple Select

Select ALL examples of mechanical energy.

• fan blades spinning

• water carrying rocks and dirt

• person biking up a hill

• food being digested

Multiple Choice

Sound from your cell phone is an example of ________ energy.

• electrical

• mechanical

• radiant

• thermal

Multiple Choice

Light from your cell phone screen is an example of ________ energy.

• electrical

• mechanical

• radiant

• thermal

Multiple Select

Why do we use the term fossil fuel to describe coal and natural gas, but not nuclear energy, if all three are nonrenewable energy sources?

• Coal and natural gas are "fossil fuels" because they were formed from the remains of prehistoric plants and animals that were buried and compressed over millions of years.

• Nuclear energy should be considered fossil fuel.

• Nuclear energy is generated by nuclear fission.

• Coal and natural gas are generated by fission of uranium.

Multiple Choice

A group of students used temperature probe to record the temperature over time as they heated up the substance on a hot plate. Explain why the temperature stays the same from 20 to 30 seconds.

• The temperature probe stopped working.

• The energy is needed to BREAK bonds between molecules.

• The student stopped the experiment for 10 seconds.

Multiple Choice

Select the temperature at which water boils on the Kelvin scale.

• 100 K

• 212 K

• 373.15 K

Multiple Choice

Heat when your cell phone gets too hot is an example of ________ energy.

• electrical

• mechanical

• radiant

• thermal

Multiple Choice

Energy that travels through the wires of your cell phone is an example of ________ energy.

• electrical

• mechanical

• radiant

• thermal