GCSE Physics

• What is the base unit for time in the SI system?

  Second
• What is the base unit for electric current in the SI system?

  Ampere
• What is the base unit for mass in the SI system?

  Kilogram
• Why are base units important in the SI system?

  They provide a consistent way to measure quantities
• What is the base unit for the amount of substance in the SI system?

  Mole
• How do base units contribute to the SI system?

  They serve as the foundation for all measurements
• What is the base unit for luminous intensity in the SI system?

  Candela
• What is the standard unit of length in the SI system?

  Meter (m)
• Why is the meter important for scientific experiments?

  It provides standardized measurements
• What is the base unit for thermodynamic temperature in the SI system?

  Kelvin
• What are the main applications of the meter?

  • Architecture: Designing building layouts
  • Textiles: Measuring fabric length
  • Sports: Marking distances in races
  • Science: Conducting experiments
• What is the standard unit of mass in the SI system?

  Kilogram (kg)
• What are base units in the SI system?

  Fundamental units for measurement standards
• How is the second used in daily life?

  For planning activities
• What are the importance and uses of the second?

  Importance:

  • Provides a universal way to measure time
  • Essential for scheduling activities
  • Used in digital clocks and computer timing

  
  

  Uses:

  • Planning activities in daily life
  • Measuring reaction rates in science
  • Timing races in sports
  • Synchronizing computer functions in technology
• In what daily situations might you use the meter?

  Measuring room sizes and fabric lengths
• What are derived units in relation to base units?

  Units formed from combinations of base units
• How does the meter facilitate international trade?

  It ensures uniform measurement across countries
• Why is the kelvin important in scientific measurements?

  • Provides consistency across scientific fields
  • Starts at absolute zero (0 K)
  • Used in various applications
• What does electric current represent?

  Flow of electric charge through a circuit
• What is absolute zero in kelvin?

  0 K
• What are some uses of the ampere?

  • Powering home appliances (e.g., TVs, refrigerators)
  • Managing smartphone charging
  • Designing circuit breakers
  • Measuring current in scientific experiments
• Why is the ampere important?

  • Standardized measurement for electricity
  • Essential for electronic device design
  • Prevents circuit overloads
• What are some applications of the kelvin scale?

  • Weather forecasting: Measuring air temperature
  • Engineering: Calculating engine heat
  • Scientific research: Conducting experiments at extreme temperatures
  • Manufacturing: Controlling industrial processes
• What role does the second play in technology?

  Synchronizing computer functions
• Why is consistency in measuring time important in scientific experiments?

  It ensures reliable and comparable results
• Why is the kilogram important?

  • Ensures consistency in scientific measurements
  • Useful in everyday activities like cooking
  • Standardizes measurements for global trade
• How is the second utilized in sports?

  Timing races
• What does the kilogram measure?

  Amount of substance in an object
• What does the second (s) measure?

  How long events take
• What does the kelvin measure?

  How hot or cold an object is
• In engineering, how is kelvin applied?

  For calculating engine heat
• What are the base units in the SI system and their symbols?

  • Length: Meter (m)
  • Mass: Kilogram (kg)
  • Time: Second (s)
  • Electric Current: Ampere (A)
  • Thermodynamic Temperature: Kelvin (K)
  • Amount of Substance: Mole (mol)
  • Luminous Intensity: Candela (cd)
• Why is the mole important in chemistry?

  It helps count small particles like atoms
• In what way is the second used in science?

  Measuring reaction rates
• What are the key importance aspects of the mole?

  • Provides a standardized way to count particles
  • Allows measurement of substances in manageable quantities
  • Essential for understanding and balancing reactions
• What is the base unit for length in the SI system?

  Meter
• What happens at absolute zero?

  All atomic movement stops
• How is kelvin used in weather forecasting?

  For measuring air temperature
• How does manufacturing utilize the kelvin scale?

  For controlling industrial processes