g is Positive.

The video tutorial explains the concept of gravity, focusing on the acceleration due to gravity, denoted as little g, which is positive 9.81 m/s² on Earth. It addresses common misconceptions about gravity's direction and its effects on objects in free fall and projectile motion. Through experiments and examples, the tutorial clarifies that while the force of gravity acts downward, little g is a positive constant used to calculate gravitational force. The video also distinguishes between the acceleration of an object and the acceleration due to gravity, emphasizing their different roles in physics.

What is the value of the acceleration due to gravity on Earth?

• 9.81 meters per second squared

• 0 meters per second squared

• -9.81 meters per second squared

• 19.62 meters per second squared

Why is the acceleration in the Y direction negative during freefall?

• Because the object is moving upwards

• Because the force of gravity acts downwards

• Because there is no air resistance

• Because the object is at rest

In a vacuum, which force acts on a projectile?

• Gravitational force

• Air resistance

• Frictional force

• Normal force

What is the role of little g in calculating the force of gravity?

• It is the value used to calculate the force of gravity

• It is the speed of the object

• It is the acceleration of the object

• It is the mass of the object

How does the force normal affect an object at rest on a surface?

• It increases the object's acceleration

• It prevents the object from falling

• It changes the direction of gravity

• It decreases the object's mass

What happens to the acceleration of an object when it is at rest on a surface?

• It doubles

• It remains zero

• It becomes negative

• It becomes positive

What is the relationship between the acceleration of an object and the acceleration due to gravity?

• They are inversely proportional

• They are the same

• They are unrelated

• They are different but related through mass