Sustainability & Energy

Weather and climate are the same thing?

• True

• False

• Not sure

Which of the following best describes the greenhouse effect on Earth?

• The greenhouse effect is the ‘trapping’ of some of the Earth’s infrared radiation in the atmosphere.

• The greenhouse effect gives the sky its blue colour and the sea its blue-green colour

• The greenhouse effect is the result of industrial pollution and human-caused fires.

• The greenhouse effect is caused by the hole in the ozone layer.

Which answer best completes the following sentence correctly? The greenhouse effect is necessary for life on Earth because:

• it provides the carbon dioxide necessary for plants to photosynthesise.

• it provides us with the oxygen gas we need for life

• it shields us from the Sun’s ultraviolet radiation.

• it helps keep the temperature of the Earth not too hot and not too cold.

The invisible carbon dioxide released when coal, oil, and gas are burned is the single most important contributor to climate change.

• True

• False

• Not sure

The invisible carbon dioxide released when coal, oil, and gas are burned is the single most important contributor to climate change.

• True

• False

• Not sure

This type of radiation from the sun is related to climate change:

• Infrared

• Ultraviolet

• X-rays

• Not sure

Which answer best completes this sentence correctly? Solar panels do not contribute to the enhanced greenhouse effect while they are being used because:

• they do not produce any carbon dioxide gas while operating.

• they do not produce any waste heat energy while operating.

• they are very efficient.

• they absorb heat energy

For a solar panel installed on an Australian home that has a sloping roof, the position of the solar panel on the roof that would deliver the greatest electrical power is:

• vertical, on the top edge of the roof, pointing due south.

• horizontal, on the top edge of the roof.

• lying against one of the sloping faces that points towards the east.

• lying against one of the sloping faces that points towards the north.

Energy sources that can be replenished by nature in a relatively short period of time are called renewable energy forms.

• True

• False

• Not sure

The particles in a solid that is heating up move farther and farther apart because:

• the particles slow down.

• the particles begin to lose their shape.

• the particles have more energy and bump into each other more often

• the particles repel each other more intensely.