Introduction to the Force of Gravity and Gravitational Mass

The video tutorial covers the concept of gravity, explaining the force of gravity and its synonymous term, weight. It distinguishes between gravitational and inertial mass, noting their experimental equivalence. The accepted value for acceleration due to gravity on Earth is discussed, emphasizing its vector nature and downward direction. The tutorial also explains the SI unit for force, the Newton, and introduces Newtonian mechanics. Finally, it covers the English unit for force, the pound, and its historical context.

What is the force of gravity also known as?

• Mass

• Weight

• Inertia

• Acceleration

Which type of mass is used in the equation for the force of gravity?

• Molecular mass

• Atomic mass

• Gravitational mass

• Inertial mass

What is the accepted value for the acceleration due to gravity on Earth?

• 9.81 meters per second squared

• 10 meters per second squared

• 8.9 meters per second squared

• 9.5 meters per second squared

What is the base SI unit for force?

• Pound

• Newton

• Kilogram

• Slug

What does Newtonian mechanics describe?

• Quantum particles

• Macroscopic objects

• Light waves

• Subatomic particles

What is the English unit for force?

• Newton

• Kilogram

• Pound

• Slug

How many slugs are equivalent to one BLOB?

• 10

• 12

• 20

• 15