Grade 9 Science Quiz

What is the process of heat transfer through a solid object called?

• Conduction

• Convection

• Radiation

• Reflection

What is the process of heat transfer in a liquid from high temperature to lower temperature called?

• Conduction

• Convection

• Radiation

• Reflection

What is the process of heat transfer through electromagnetic waves without involving particles called?

• Conduction

• Convection

• Radiation

• Reflection

What is the bouncing back of light when it strikes a smooth surface called?

• Reflection

• Refraction

• Conduction

• Radiation

What is the bending of light rays when it travels from one medium to another called?

• Reflection

• Refraction

• Conduction

• Radiation

Which materials allow heat to pass through them easily?

• Aluminum, iron and copper

• Plastic, rubber and wood

• Glass, ceramic and stone

• Paper, cardboard and fabric

Which materials do not allow heat to pass through them easily?

• Aluminum, iron and copper

• Plastic, rubber and wood

• Glass, ceramic and stone

• Paper, cardboard and fabric

What is the term for materials that do not allow heat to pass through them easily?

• Conductors

• Insulators

• Reflectors

• Transmitters

What electromagnetic spectrum can be used in communication?

• Visible light

• Infrared radiation

• Ultraviolet radiation

• X-rays

What is the reason behind particles looking shiny and sparkling when light shines on them?

• Reflection

• Refraction

• Conduction

• Radiation