weight and mass

• How does weight differ from mass?

  Weight can change based on location, mass cannot
• Does mass change based on location?

  No, mass always stays the same
• What are the two units of weight mentioned?

  Newtons (N) and pounds (lb)
• How does the mass of a brick compare to a feather?

  A brick has more mass than a feather
• How much does a 1 kg book weigh on Earth in pounds?

  Approximately 2.2 lb
• What is a gram used for?

  Measuring lighter items
• In which countries is the pound (lb) commonly used?

  UK and USA
• Can weight change depending on location in the universe?

  Yes, weight can change based on location
• How many grams are in a kilogram?

  1000 grams
• If a textbook weighs 2 kilograms, how many grams does it weigh?

  2000 grams
• What does weight depend on?

  Gravity
• What is weight defined as?

  The force of gravity pulling down on an object
• What does mass measure?

  How much matter something contains
• What is the definition of mass?

  Amount of "stuff" in an object
• If a brick weighs less on the Moon, what does this imply about its mass?

  The mass remains the same on both Earth and Moon
• How much does a 1 kg book weigh on Earth in Newtons?

  Approximately 10 N
• What is the definition of weight?

  How heavy something feels
• What are the key differences between mass and weight?

  • Mass: Amount of "stuff" in an object, constant everywhere
  • Weight: How heavy something feels, depends on gravity
• How does the weight of a 1 kg mass vary by location?

  It varies depending on the local gravity
• How can grams and kilograms be compared to money?

  • A gram is like a penny
  • A kilogram is like a thousand pennies (or $10)
• Why does a brick weigh less on the Moon compared to Earth?

  Because the Moon's gravity is weaker than Earth's
• How does mass change when moving from Earth to the Moon?

  Mass remains the same everywhere
• In what units is mass measured?

  Grams or kilograms (kg)
• What does a Newton (N) represent?

  A unit of force showing gravity's pull
• Do the units of mass change based on location?

  No, they always stay the same
• If a brick has a mass of 1 kg on Earth, what is its weight?

  About 10 N
• What factors affect the weight of an object?

  • Local gravitational strength
  • Mass of the object
• What is the weight of a 1 kg brick on the Moon?

  About 1.7 N
• How does weight differ from mass?

  Weight changes with gravity, mass does not
• How does the weight of an object change when moving from Earth to the Moon?

  Weight decreases due to weaker gravity
• Why do you weigh less on the Moon?

  Because of weaker gravity on the Moon
• What are the two units of mass mentioned?

  Grams and kilograms