Gravity and Weight

• What is weight defined as?

  The force acting on an object due to gravity
• Why is gravity close to the Earth significant?

  It creates a gravitational field around the Earth
• What does the weight of an object depend on?

  It depends on the strength of the gravitational field
• How is weight measured?

  Using a calibrated spring-balance
• How can the weight of an object be calculated?

  Weight = mass x gravitational field strength
• What is the formula for weight?

  Weight = mass x gravitational field strength
• What units are used for weight?

  Newtons (N)
• What does the variable 'g' represent in weight calculations?

  The gravitational field strength in newtons per kilogram
• How does the weight of an object relate to its mass?

  Weight is directly proportional to mass
• What is the significance of the center of mass in weight measurement?

  It is the point where the object's weight acts
• What does the center of mass refer to?

  The point where the object's mass is concentrated
• How does the center of gravity relate to weight?

  It is the point where the weight acts on the object
• Why is the concept of weight important in physics?

  It helps understand forces acting on objects
• What is the relationship between weight and gravitational field strength?

  Weight increases with stronger gravitational field strength
• How does weight change in different gravitational fields?

  Weight varies based on the strength of the field
• If an object's mass is 10 kg and the gravitational field strength is $9.8 \text{ N/kg}$, what is its weight?


  $98 \text{ N}$
• How does the concept of weight differ from mass?

  Weight is a force; mass is matter quantity
• What is the standard unit of mass?

  Kilograms (kg)
• Why is it important to consider the center of mass in weight calculations?

  It determines how weight is distributed in an object
• What is the gravitational field strength on Earth?

  $9.8 \text{ N/kg}$
• How does the weight of an object appear to act?

  It appears to act at the center of mass
• What happens to weight if mass is doubled while gravitational field strength remains constant?

  Weight also doubles
• What is the formula for calculating weight in newtons?

  Weight = mass x gravitational strength
• What does the term 'gravitational field strength' refer to?

  The force of gravity per unit mass
• How does the weight of an object change on different planets?

  It changes based on each planet's gravity
• What is the relationship between weight and gravitational pull?

  Weight is the result of gravitational pull
• Why is the concept of weight crucial in physics?

  It helps analyze forces and motion of objects
• How does the center of gravity affect stability?

  Lower center of gravity increases stability