Quiz on Energy and Materials

Which one of the following is a type of potential energy?

• Mechanical

• Movement

• Heat

• Light

In a home security intruder alarm, which one of the following is the output device?

• Pressure pad

• Motion sensor

• Audible alarm

• Proximity switch

What is the definition of a composite material?

• A material made from two or more different materials to improve its properties

• A material that reacts to changes in the environment

• A material that has the ability to repair itself if cracked under stress

• A material that is made from only recycled or recyclable materials

Which of the following is not a coated metal?

• Anodized aluminium

• Chrome plated steel

• Stainless steel

• Plastic dip-coated mild steel

Discuss why developed and developing countries are moving away from fossil fuels to provide their supply of electricity?

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Explain two positive environmental impacts of using rechargeable batteries over single use batteries?

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Name two smart materials and state the stimuli that trigger reactions.

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Describe two different ways that the functionality of textiles can be improved.

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Which of the following materials is considered a smart material?

• Aluminium

• Thermochromic pigment

• Glass

• Concrete

What is the primary characteristic of a smart material?

• It is lightweight and durable

• It can change its properties in response to external stimuli

• It is made from recycled materials

• It is resistant to corrosion