Mass and Weight in Different Gravitational Fields

The video tutorial explains the difference between weight and mass. Mass is a scalar quantity representing the amount of matter in an object, while weight is a vector quantity that depends on gravitational field strength. The tutorial uses the example of a person on Earth and the Moon to illustrate how weight changes with gravity, while mass remains constant. The weight equation, weight equals mass times gravitational field strength, is introduced and applied to calculate weight on Earth and the Moon.

What is the main difference between weight and mass?

• Weight is a scalar quantity, while mass is a vector quantity.

• Weight is a vector quantity, while mass is a scalar quantity.

• Both weight and mass are scalar quantities.

• Both weight and mass are vector quantities.

Which of the following best describes mass?

• Mass is the direction of gravitational pull on an object.

• Mass changes depending on the object's location in the universe.

• Mass is the amount of matter in an object, measured in kilograms.

• Mass is the force exerted by gravity on an object.

How does the mass of an object change when it is moved from Earth to the Moon?

• The mass decreases.

• The mass increases.

• The mass remains the same.

• The mass becomes zero.

What is the weight of a 75 kg person on Earth if the gravitational field strength is 10 N/kg?

• 7.5 N

• 750 N

• 7500 N

• 75 N

Why does weight change when moving from Earth to the Moon?

• Because the mass of the object changes.

• Because the direction of gravity changes.

• Because the size of the object changes.

• Because the gravitational field strength is different.

What is the gravitational field strength on the Moon?

• 10 N/kg

• 1.6 N/kg

• 0 N/kg

• 9.8 N/kg

How do you calculate weight using mass and gravitational field strength?

• Weight = Mass + Gravitational Field Strength

• Weight = Mass / Gravitational Field Strength

• Weight = Mass x Gravitational Field Strength

• Weight = Gravitational Field Strength - Mass

What happens to the weight of a person when they move from Earth to the Moon?

• It remains the same.

• It increases.

• It becomes zero.

• It decreases.

Which of the following is true about mass?

• Mass is a vector quantity.

• Mass is measured in Newtons.

• Mass changes with location.

• Mass is a scalar quantity.

What unit is used to measure weight?

• Kilograms

• Meters

• Newtons

• Joules