Gravity-Why do things Fall

What is the force that pulls objects towards the center of the Earth?

Gravity

Magnetism

Friction

Electricity

Which scientist is famous for discovering the law of universal gravitation?

Isaac Newton

Albert Einstein

Galileo Galilei

Nikola Tesla

What is the acceleration due to gravity on Earth?

9.8 m/s^2

5.6 m/s^2

12.3 m/s^2

3.2 m/s^2

What happens to the weight of an object when it is taken to the Moon?

It decreases

It increases

It remains the same

It becomes zero

Which of the following factors affect the strength of gravity between two objects?

Mass of the objects

Distance between the objects

Temperature of the objects

Color of the objects

If an object is dropped from a height, how does its potential energy change as it falls?

It decreases

It increases

It remains the same

It becomes zero

What is the formula to calculate the force of gravity between two objects?

F = (G * m1 * m2) / r^2

F = (m1 * m2) / r^2

F = (G * m1 * m2) / r

F = (m1 * m2) / r

Why do objects fall towards the ground instead of floating in the air?

Due to the force of gravity

Due to air resistance

Due to magnetic attraction

Due to electrostatic forces

What is the relationship between mass and gravitational force?

Directly proportional

Inversely proportional

No relationship

Exponentially proportional

Why do astronauts experience weightlessness in space?

Because they are in freefall around the Earth

Because there is no gravity in space

Because they are far away from Earth's gravitational field

Because their mass decreases in space

Gravity-Why do things Fall

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