- What is the gravitational acceleration on Earth?
- Do heavier objects fall faster?
- What happens to acceleration due to gravity on a planet as it becomes larger?
- Why does force equal mass times acceleration?
- What is the difference between force and acceleration?
- What acceleration does gravity cause?
- Does acceleration increase with height?
- Does acceleration depend on force?
- Does weight affect acceleration?
- How does acceleration depend on the net force?
- Who calculated the acceleration of gravity for Earth?
- Does weight depend on the acceleration due to gravity?
- What causes a free falling object to accelerate?
- Does air resistance affect acceleration?
What is the gravitational acceleration on Earth?
Do heavier objects fall faster?
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.
What happens to acceleration due to gravity on a planet as it becomes larger?
According to Newton’s law of universal gravitation two bodies exert a force on each other proportional to the product of their masses and inversely proportional to the square of the distance between them. So big mass –> big acceleration due to gravity.
Why does force equal mass times acceleration?
Newton’s second law is often stated as F=ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a). This means the more mass an object has, the more force you need to accelerate it. And the greater the force, the greater the object’s acceleration.
What is the difference between force and acceleration?
Direct and Inverse Relationships Newton’s second law shows that there is a direct relationship between force and acceleration. The greater the force that is applied to an object of a given mass, the more the object will accelerate. For example, doubling the force on the object doubles its acceleration.
What acceleration does gravity cause?
A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth). This numerical value for the acceleration of a free-falling object is such an important value that it is given a special name.
Does acceleration increase with height?
The acceleration of an object changes with altitude. … As the distance is tripled, the gravitational acceleration decreases by a factor of 9, and so on. At the surface of the Earth, the acceleration due to gravity is roughly 9.8 m/s2 (32 ft/s2). The average distance to the centre of the Earth is 6,371 km (3,959 mi).
Does acceleration depend on force?
The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased.
Does weight affect acceleration?
Engineers will often talk of “power to weight ratio” – because in the early phase of having enough grip this determines acceleration. As the acceleration is slower with a heavier car of the same power, you have to accelerate for longer (more time) to cover the same distance so you use more fuel.
How does acceleration depend on the net force?
Newton’s second law of motion states that acceleration is directly proportional to net force when mass is constant… and that acceleration is inversely proportional to mass when net force is constant… and that net force is directly proportional to mass when acceleration is constant…
Who calculated the acceleration of gravity for Earth?
Henry CavendishNewton’s Law of Universal Gravitation The universal gravitational constant was discovered experimentally in 1798 by English physicist Henry Cavendish. It is measured in Newton-square meters per square kilogram (N-m^2/kg^2) and is equal to 6.67 * 10^-11 N-m^2/kg^2.
Does weight depend on the acceleration due to gravity?
Weight is a measure of the force of gravity pulling down on an object. It depends on the object’s mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth.
What causes a free falling object to accelerate?
The force of gravity causes objects to fall toward the center of Earth. The acceleration of free-falling objects is therefore called the acceleration due to gravity.
Does air resistance affect acceleration?
With air resistance, acceleration throughout a fall gets less than gravity (g) because air resistance affects the movement of the falling object by slowing it down. How much it slows the object down depends on the surface area of the object and its speed.