GCSE Physics: Energy, Heating, COnduction TestLife 11+ online Physics Quizzes Quiz 1 Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 1 / 15 What is the role of an insulator in heat transfer? Transfers energy efficiently Conducts heat well Conducts heat poorly Speeds up heat transfer An insulator is a material that resists the flow of heat and conducts it poorly, making it useful for preventing heat transfer. 2 / 15 Which of the following best describes the process of conduction? Heat transfer through the movement of fluid Heat transfer through direct contact between particles Heat transfer through a vacuum Heat transfer by radiation from a hot object Conduction is the transfer of heat through direct contact between particles, commonly occurring in solids. 3 / 15 Why does heat move from hot to cold? Heat seeks to reach equilibrium Hot particles lose energy as they cool Cold particles have more energy Cold objects attract heat Heat moves from hot to cold because particles with higher energy transfer energy to those with lower energy, seeking equilibrium. 4 / 15 Which material would be considered the best thermal conductor? Glass Wood Plastic Copper Materials like copper are good thermal conductors because they allow heat to pass through them efficiently. 5 / 15 What happens to particles in a solid as they are heated? They move apart They stop moving They vibrate faster They slow down When heated, particles in a solid gain energy and vibrate more vigorously, increasing the rate of heat transfer. 6 / 15 What is the formula for calculating energy transferred in heating? E = mcΔT E = mc² E = mv² E = mgh The formula ( E = mcDelta T ) calculates the energy transferred during a change in temperature, considering mass, specific heat capacity, and temperature change. 7 / 15 Which of the following would be a good insulator? Aluminium foil Rubber Copper Glass Good insulators, like rubber, prevent the transfer of heat due to their low thermal conductivity. 8 / 15 When does the peak intensity of radiation shift towards shorter wavelengths? When the object cools to room temperature When the object's mass increases When the object's temperature increases When the object's temperature decreases As an object’s temperature increases, the peak wavelength of emitted radiation shifts toward shorter wavelengths, meaning higher frequencies. 9 / 15 What is meant by a “perfect black body”? It transmits all radiation without absorbing It absorbs all radiation and reflects none It absorbs some radiation and transmits some It reflects all radiation and absorbs none A “perfect black body” is an ideal object that absorbs all incoming radiation without reflecting or transmitting any. 10 / 15 Why is loft insulation effective in homes? It blocks sound waves It traps air reducing heat loss It prevents moisture from entering It allows heat to pass through easily Loft insulation is effective because it traps air, which reduces heat loss by conduction and convection. 11 / 15 If a 30 W heater runs for 5 minutes, how much energy does it provide? 1500 J 300 J 9000 J 150 J A 30 W heater provides energy based on power and time, calculated using ( text{Energy} = text{Power} times text{Time} ). 12 / 15 What happens to the temperature rise if the same heat energy is applied to a block of double the mass? It will increase four times It will halve It will double It will remain the same If heat energy is applied to a mass that is doubled, the temperature rise will decrease because the same energy is distributed over a larger mass. 13 / 15 Which method of heat transfer occurs in gases and liquids but not in solids? Radiation Conduction Convection Reflection Convection is a method of heat transfer that occurs in fluids (liquids and gases) through the movement of particles, not possible in solids. 14 / 15 What does thermal conductivity indicate? The mass of a material The rate of light transmission through a material The material's ability to emit radiation How well a material conducts heat Thermal conductivity measures how well a material conducts heat; materials with higher conductivity transfer heat more effectively. 15 / 15 When viewed through an infrared camera, which parts of a house would appear blue? Well-insulated parts Wooden surfaces Poorly insulated parts Metal surfaces Infrared cameras detect heat; well-insulated parts appear cooler (blue) because they lose less heat, while poorly insulated areas appear warmer. Your score is Quiz2 Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 1 / 10 Which materials would be effective for making a thermal flask? Glass with a vacuum between layers Stainless steel inner lining Plastic outer shell Cotton filling inside the flask Check Thermal flasks are effective when made with materials like stainless steel, plastic, and glass with a vacuum between layers, which help to minimize heat transfer. 2 / 10 Which statements about specific heat capacity are correct? Metals typically have low specific heat capacities Substances with high specific heat capacities heat up slowly It is the energy required to raise 1 kg of a substance by 1°C Water has a low specific heat capacity Check Specific heat capacity measures the energy needed to raise the temperature of 1 kg of a substance by 1°C. Substances with high specific heat capacity heat up slowly, while metals generally have low specific heat capacities. 3 / 10 Which factors would decrease the amount of heat loss in a house? Using materials with lower thermal conductivity Increasing the thickness of insulation Painting the walls a light color Increasing the number of windows Check Decreasing heat loss in a house can be achieved by using thicker insulation materials and those with lower thermal conductivity, which slow the transfer of heat. 4 / 10 Which are properties of a perfect black body? Emits the maximum possible amount of radiation Transmits all incoming radiation Absorbs all incoming radiation Reflects all incoming radiation Check A perfect black body absorbs all incoming radiation without reflecting or transmitting any. It also emits the maximum amount of radiation possible. 5 / 10 Which of the following methods can be used to reduce heat loss from a building? Using a heater with a higher power rating Installing a radiator Double glazing windows Loft insulation Reducing heat loss in buildings can be achieved through double glazing, loft insulation, and other methods that trap air or reduce thermal conductivity. 6 / 10 Which of these changes occur when an object is heated? Particles expand Energy is transferred to the surroundings Particles move faster Particles move closer together Check When an object is heated, its particles gain energy, move faster, and may expand.The energy is also transferred to the surroundings, raising the temperature. 7 / 10 Which conditions increase the rate of infrared radiation emission from a surface? Darker surface Shiny surface Larger surface area Higher temperature Check The rate of infrared radiation increases with higher temperatures, darker surfaces (which absorb and emit more heat), and larger surface areas (which emit more radiation). 8 / 10 Which of the following materials are considered insulators? Wood Glass Plastic Silver Check Insulating materials, such as glass, wood, and plastic, do not conduct heat well and help to reduce heat loss. 9 / 10 Which factors affect the rate of heat transfer by conduction? Thermal conductivity of the material Density of the material Thickness of the material Color of the material Check The rate of heat transfer by conduction is affected by factors like the thickness of the material, its thermal conductivity, and density. Thicker materials and those with lower conductivity slow down heat transfer. 10 / 10 Which of the following are good conductors of heat? Aluminium Rubber Copper Plastic Check Good conductors of heat, like copper and aluminium, allow heat to pass through them easily due to their high thermal conductivity. Your score is
