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?

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

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

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

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