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Air Resistance and Free Fall Experiment

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Questions and Answers

What experiment can be conducted in a glass jar to prove that the paper and the stone would fall at the same rate?

Removing the air from the glass jar

What does Eq.(9.9) state regarding the acceleration experienced by an object during free fall?

Acceleration is independent of mass

Define free fall.

Free fall is the motion of an object under the influence of gravity only, without any other forces acting on it.

Who is known for dropping different objects from the top of the Leaning Tower of Pisa to demonstrate that objects fall at the same rate regardless of their mass?

Galileo Signup and view all the answers

How are the equations for uniformly accelerated motion of objects affected when acceleration, a, is replaced by g?

All equations become valid Signup and view all the answers

What is acceleration due to gravity?

Acceleration due to gravity is the acceleration experienced by an object in free fall near the surface of the Earth, which is approximately 9.8 m/s^2. Signup and view all the answers

Explain the concept of inertia.

Inertia is the resistance of an object to changes in its motion. Greater mass leads to greater inertia. Signup and view all the answers

How is velocity related to acceleration in vertical motion?

In vertical motion, velocity changes due to the acceleration caused by gravity. When an object is thrown upwards, the velocity decreases until it reaches 0 at the highest point. Signup and view all the answers

How does the force of gravitation between two objects change when the distance between them is reduced to half?

The force of gravitation between two objects quadruples when the distance between them is reduced to half. Signup and view all the answers

Gravitational force acts on all objects in proportion to their masses. Why then, does a heavy object not fall faster than a light object?

Although the gravitational force is proportional to mass, the acceleration due to gravity is the same for all objects, regardless of mass. Signup and view all the answers

What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 10^24 kg and radius of the earth is 6.4 × 10^6 m.)

The magnitude of the gravitational force is 9.8 N. Signup and view all the answers

Describe how inertia plays a role in the motion of objects in the context of gravitation and free fall.

Inertia is the tendency of objects to resist changes in their motion. In the context of gravitation and free fall, inertia causes objects to maintain their velocity unless acted upon by an external force, such as gravity. Signup and view all the answers

Explain the concept of acceleration due to gravity and how it affects the motion of objects in free fall.

Acceleration due to gravity is the acceleration experienced by an object in free fall due to the gravitational force of the earth. It causes objects to fall towards the earth with a constant acceleration of approximately 9.8 m/s^2. Signup and view all the answers