What did Galileo experiment prove?
What did Galileo experiment prove?
According to the story, Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle’s theory of gravity (which states that objects fall at speed proportional to their mass).
Who dropped a feather and a hammer together?
Commander David Scott
Why do 2 objects fall at the same rate?
The acceleration of the object equals the gravitational acceleration. The mass, size, and shape of the object are not a factor in describing the motion of the object. So all objects, regardless of size or shape or weight, free fall with the same acceleration.
What falls faster an elephant or a mouse?
True or False? Free body diagrams of the Elephant and Mouse show that the mouse quickly reaches terminal velocity, (Terminal Velocity occurs when Fg = Fair) while the elephant continues to accelerate for much longer. The elephant is therefore going faster when it hits the water.
Why is a heavier object harder to accelerate than a lighter one?
Acceleration depends on the force and mass. A heavier object experiences a greater gravitational force than the lighter object does. Heavier objects are harder to accelerate because it has more mass. Gravity and air resistance combine to give a net force on a falling object.
What is the only force that acts on a falling body when it is in free fall?
gravity
How fast is terminal velocity for a human?
about 200 km/h
Why is acceleration constant in free fall?
Freefall is a special case of motion with constant acceleration, because acceleration due to gravity is always constant and downward. Since gravity pulls the object toward the earth with a constant acceleration g, the magnitude of velocity decreases as the ball approaches maximum height.
What is the only force that acts?
Forces and Motion Vocabulary
| A | B |
|---|---|
| strong nuclear force | a powerful force of attraction that acts only on the neutrons and protons in the nucleus to hold them together |
| gravitational force | an attractive froce that acts between any two masses |
| weak nuclear force | an attractive force that acts only over a short range |
Which universal force is weakest?
Gravity is the weakest universal force, but it is the most effective force over long distances.
What are the 5 universal forces?
The forces controlling the world, and by extension, the visible universe, are gravity, electromagnetism, weak nuclear forces, and strong nuclear forces.
What is more powerful love or war?
Love can be more powerful than hate because love can end violence, make others do lovable things, inspire creations. Also since love is a much sweeter emotion, people become more attracted to it. On the other hand, hate can also be more powerful than love. Hate leads to craziness, which in most cases leads to violence.
What are the 4 basic forces?
Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay.
Why is gravity so weak?
According to string theorists’ best ideas, gravity is so weak because, unlike the other forces, it leaks in and out of these extra dimensions. The proof of this might come through experiments that probe the gravitational attraction between objects that are very small distances apart.
Is there a fifth force?
Scientists in Hungary claim to have found a new particle that reveals a fifth force of nature. A team of researchers say they’ve discovered a new force that exists outside the textbook four fundamental forces of nature. In recent years, a group of Hungarian researchers have made headlines with a bold claim.