GCSE Physics Quiz on energy

What gives off infrared radiation?

• All objects

• Only hot objects

• Only cold objects

• Only living organisms

What is a vacuum?

• A space filled with air

• A space where no matter exists

• A type of cleaner

• A space with only liquids and gases

What surfaces are good absorbers of infrared radiation?

• Shiny, reflective surfaces

• Transparent surfaces

• Dark, matte surfaces

• Smooth surfaces

What surfaces are slow to emit infrared radiation?

• Dark, matte surfaces

• Light, shiny surfaces

• Transparent surfaces

• Rough surfaces

What surfaces are good reflectors of infrared radiation?

• Dark, matte surfaces

• Light, shiny surfaces

• Transparent surfaces

• Rough surfaces

Where does conduction occur?

• In gases

• In liquids

• In solids

• In vacuums

Where does convection occur?

• In solids

• In liquids and gases

• In vacuums

• In plasmas

What is a poor conductor called?

• Conductor

• Insulator

• Emitter

• Absorber

Why does a fluid become less dense when it is heated?

• The particles contract

• The particles expand

• The fluid freezes

• The fluid evaporates

What 3 things can increase the rate of evaporation?

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