Energy Transformations and Systems Quiz

In an open energy system, energy:

• Cannot enter or leave the system

• Can both enter and leave the system

• Can only enter the system

• Can only leave the system

Tags

NGSS.HS-ESS2-4

Which of the following is an example of a closed energy system?

• The Earth's atmosphere

• A thermos flask keeping coffee hot

• An open fireplace

• A car engine

When representing energy transformation in a bar graph, the height of each bar typically indicates the:

• Type of energy

• Amount of energy

• Duration of energy transformation

• Efficiency of energy transformation

In a pie chart representation of energy transformation, what does each slice of the pie usually represent?

• The duration of each type of energy

• The efficiency of each energy transformation

• The proportion of each type of energy

• The total amount of energy

Which of the following energy transformations occurs in a hydroelectric dam?

• Chemical to electrical

• Mechanical to electrical

• Solar to electrical

• Thermal to mechanical

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

An example of chemical to thermal energy transformation is:

• A battery powering a flashlight

• Burning wood in a fireplace

• A solar panel generating electricity

• A wind turbine generating electricity

Which of the following is NOT an example of an open energy system?

• A boiling pot of water without a lid

• The Earth receiving sunlight

• A closed and insulated refrigerator

• A plant undergoing photosynthesis

Tags

NGSS.MS-LS1-6

In a bar graph showing the energy transformation in a car engine, what would the bars most likely represent?

• The speed of the car at different times

• The efficiency of the engine at converting fuel to motion

• The amount of chemical, thermal, and mechanical energy at different stages

• The temperature of the engine at different stages

Tags

NGSS.MS-PS3-4

If a pie chart shows the energy transformation in a solar panel, what might a large slice of the pie indicate?

• A high efficiency of converting solar to electrical energy

• A large amount of solar energy being wasted

• A large proportion of solar energy being converted to electrical energy

• A small amount of thermal energy being produced

Tags

NGSS.HS-PS3-3

Which of the following is an example of an open energy system?

• A closed and insulated refrigerator

• A boiling pot of water without a lid

• A closed classroom

• A thermos flask keeping coffee hot

Tags

NGSS.MS-PS3-5