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- Physical Science
- Why Do Some Objects Fall Faster Than Others?
- Do Objects Float Better in Salt Water Than in Fresh Water?
Gravity is a major player in the study of physical science. It is, of course, the force of gravity that causes objects to fall. One object always exerts a force of attraction on another object. This force of attraction is a pull, like the pull of gravity.
The larger an object is, the greater is the force of its attraction. Consider the fact that the sun, which is much, much larger than the earth, can, even at 90 million miles away, hold the earth and the other eight planets in orbit.
Scientific Surprise
Astronauts who have walked on the moon feel light and weightless because there is very little gravity holding them down. On the other hand, if they were to go to Jupiter, which has much more gravity than the earth, they wouldn't even be able to lift a foot off the ground.
The moon, on the other hand, is much smaller than the earth, and has only about one-sixth of the gravity of the earth.
It was Italian scientist Galileo Galilei who formulated the laws of accelerated motion and free-falling objects. He found that when an object is dropped and falls to the ground it has a falling rate of 9.8 meters per second, squared.
You may wonder, then, why feathers float gently in the breeze instead of falling to the ground quickly, like a brick does.
Well, it's because the air offers much greater resistance to the falling motion of the feather than it does to the brick. The air is actually an upward force of friction, acting against gravity and slowing down the rate at which the feather falls.
The brick, on the other hand, can cut right through the air as if it didn't exist. Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance.
A feather and brick dropped together. Air resistance causes the feather to fall more slowly.If a feather and a brick were dropped together in a vacuum-that is, an area from which all air has been removed-they would fall at the same rate, and hit the ground at the same time.
Understanding these basic facts will help you to be able to answer the question of why some objects fall faster than others.
You can test the rate at which various objects fall, noting both the mass of each object, and how long it takes for it to fall. Be sure to drop all objects from the same height, and be careful to use only objects that can't break. Record all your information in a journal, and chart your results.
Conduct three trials for each object so that you can calculate an average time.
What else can I help you with?
What things do you need to make an object move faster?
To make an object move faster, you can increase the force applied to it, reduce the opposing forces like friction, aerodynamic drag, or gravity acting against it, and decrease its mass to allow for quicker acceleration. Additionally, optimizing the object's design for minimal resistance and increasing the energy input can also help in making it move faster.
Why do the particles move faster in a vacuum?
In a vacuum, there is no air resistance or friction to slow down the particles, allowing them to move faster without any impediments. This lack of resistance enables the particles to move freely and at their maximum speed.
Why can some people move faster than others?
Some people may have more developed muscle fibers, better coordination, or more efficient running form, allowing them to move faster. Genetics, training, and natural ability all play a role in determining a person's speed and agility.
How and why people things and ideas move?
People, things, and ideas can move through various means depending on the context. People can move by walking, running, driving, or taking transportation. Things can move through physical forces like pushing, pulling, or gravity. Ideas can move through communication, sharing, and spreading through conversation, media, or technology. They move to reach a destination, achieve a goal, or influence others.
Which occurs when air is compressed A. Air Temp rises and air molecules move faster B. Air temp decreases C. Air temp decreases and air molecules move faster D. Air molecules move slower?
A. air temperature rises and air molecules move faster
Why are the others objects move faster than the others?
why are some objects faster than other
Why are some objects move faster than the others?
why are some objects faster than other
Why do things move faster when they are closer to the surface of things?
They don't, they just appear to...an optical illusion.
Why does objecs move faster in hot water than in cold water?
Heat is the vibration of atoms, so atoms move faster. That's why you can clean things easier in hot water and why smells travel faster in a warmer room.
Why do some clouds move faster than others?
Some clouds move faster than others because of differences in wind speed and direction at different altitudes in the atmosphere. Stronger winds can push clouds along more quickly, while lighter winds may cause clouds to move more slowly.
What effect did the steamboat have on economy?
it helped transfer goods and move people faster.
Why some chemical move faster than others?
For liquids, it depends on their viscosity, which is essentially a measure of how "syurpy" something is.
Why do object move in different faster?
Objects may move at different speeds because of how much mass they contain. Some objects also may have more propulsion than others which makes them able to travel faster.
How fast does sound move in solid?
Sound travels 16 times faster in solids then in air.
Why does a crushed antacid pill pill dissolve faster than a whole pill in water?
Brownian motion. Molecules move faster as things warm up. When the molecules move faster around the tablet, more of the tablet is disturbed, and therefore, dissolves quicker.
What resource was first used during the civil war to help move things faster?
By railroads or ships
How did wheel barrows help?
You can move larger or heavier things a greater distance, faster and with less effort.
