physics paper 1

• What are two energy resources that are renewable


  biofuel and geothermal
• what is a good factor of a reliable resource 


  It is predictable
• Give two reasons why people might not like having wind turbines near their homes


  • visual pollution

  • noise pollution
• What is the effect of burning less fossil fuel?


  It leads to less carbon dioxide released.
• What happens to gas consumption when fossil fuel use decreases?


  Gas consumption remains the same.
• How does burning less fossil fuel impact carbon dioxide emissions?


  It results in less carbon dioxide released into the atmosphere.
• What is the relationship between fossil fuel use and greenhouse gases?


  Less fossil fuel use leads to less greenhouse gases.
• What is the effect of reduced greenhouse gases on global warming?


  It leads to less global warming.
• How does less fossil fuel consumption affect acid rain?


  It results in less acid rain.
• What is the impact of reduced fossil fuel use on environmental pollution?


  It leads to less environmental pollution.
• What is a negative consequence of increased nuclear fuel use?


  More hazardous waste is produced.
• Why does the battery in the phone need recharging?


  the store of chemical energy in the battery has reduced
• Not all of the g.p.e. has been transferred to kinetic energry during an experiment, why


  some energy is wasted
• Explain how lubricating the wheels of the skateboard can increase the speed 


  reduces the amount of friction so more energy is usefully transferred
• Suggest why some ceiling lights do not have an earth wire


  the casing is not made of metal so there is little to no chance of electric shock
• Write down the equation that links charge flow, current and time


  charge flow = current × time
• Describe how the movement of the copper particles in the wire changes when copper melts


  the particles vibrate about a fixed position regular arrangement
• Which type of radiation is the most penetrating

  gamma
• Which type of radiation is the most ionising


  alpha
• Which type of radiation has the longest range in air?

  gamma
• Explain why the total positive charge in every atom of an element is always the same


  positive charge is provided by protons and every atom of the same element contain the same number of proton