Comparing Mass and Weight

The video explains that the mass of an object remains constant regardless of its location, such as on Earth or the moon. However, the weight of an object varies depending on the gravitational pull at its location. The metric unit of weight is the Newton, which is a measure of force. On Earth, a 1-kilogram mass weighs 9.8 Newtons. While scientists use Newtons to describe weight, everyday usage often involves metric units of mass or English units like pounds.

What remains unchanged when an object is moved from Earth to the moon?

• Its weight

• Its mass

• Its volume

• Its density

Why does a soccer ball weigh less on the moon than on Earth?

• The moon has more gravity than Earth

• The moon has less gravity than Earth

• The soccer ball loses mass on the moon

• The soccer ball gains mass on the moon

What is the metric unit used to measure weight?

• Kilogram

• Newton

• Pound

• Gram

How much force does Earth's gravity exert on a 1-kilogram mass?

• 15 Newtons

• 9.8 Newtons

• 20 Newtons

• 5 Newtons

Which of the following is NOT a common unit for describing weight?

• Pounds

• Ounces

• Kilograms

• Liters