# What factors affect the speed of an object?

The factors affecting the terminal speed of a falling object include:

• its mass.
• its surface area.
• the acceleration due to gravity, g.
• Furthermore, what are the factors affecting the velocity of a river?

Factors Affecting a River’s Velocity. The velocity of a river is determined by many factors, including the shape of its channel, the gradient of the slope that the river moves along, the volume of water that the river carries and the amount of friction caused by rough edges within the riverbed.

What is the velocity of a stream?

Stream velocity is the speed of the water in the stream. Units are distance per time (e.g., meters per second or feet per second). Stream velocity is greatest in midstream near the surface and is slowest along the stream bed and banks due to friction.

What factors affect stream flow?

Natural mechanisms

• Runoff from rainfall and snowmelt.
• Evaporation from soil and surface-water bodies.
• Transpiration by vegetation.
• Ground-water discharge from aquifers.
• Ground-water recharge from surface-water bodies.
• Sedimentation of lakes and wetlands.
• Formation or dissipation of glaciers, snowfields, and permafrost.
• ## What are the factors that affect velocity?

Were they correct in telling us that mass doesn’t affect velocity or vice versa. Also what other factors can influence the velocity of the car rolling freely down the inclined plane, other than the surface, incline, air resistance, and mass.

## What factors affect the speed of a falling object?

The factors affecting the terminal speed of a falling object include: its mass. its surface area. the acceleration due to gravity, g.

## What are the factors affecting friction?

The smoothness of the contacting surfaces influences friction. If two surfaces are rough than if they are smooth, then is important to action witha greater force. Friction does not depend on the amount of surface area in contact between the moving bodies or (within certain limits) on the relative speed of the bodies.

## What factors affect air resistance?

When air resistance acts, acceleration during a fall will be less than g because air resistance affects the motion of the falling objects by slowing it down. Air resistance depends on two important factors – the speed of the object and its surface area. Increasing the surface area of an object decreases its speed.

## Do heavier objects fall faster than lighter ones?

Heavier objects do not fall faster than lighter objects when they are dropped from a certain height IF there is no resistance from the air. So, if you were in a vacuum, the two things would fall at the same rate.

## What affects the terminal velocity of an object?

Terminal Velocity. As the object falls, the force of gravity initially causes it to continuously speed up as predicted by Isaac Newton. As it gets faster and faster, the air drag force increases until eventually, the air drag force is exactly equal to the force of gravity, and there is no net force acting on the object

## What are the factors that affect the value of acceleration due to gravity?

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.

## How Does height affect the speed of an object?

To investigate into how the height of a ramp affects the speed of a toy car rolled down it. Because the higher the ramp the more Gravitational Potential Energy(GPE), the more GPE the more kinetic energy converted and the car faster it will go. So that as the ramp increases, the velocity will also increase.

## How does mass affect the speed of a falling object?

Target response: Both objects fall at the same speed. Mass does not affect the speed of falling objects, assuming there is only gravity acting on it. The horizontal force applied does not affect the downward motion of the bullets — only gravity and friction (air resistance), which is the same for both bullets.

## What determines the mass of an object?

The weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton. Density is mass/volume.

## What affect the acceleration?

The object might speed up, slow down, or change direction. It could even change both speed and direction. He also realized that mass also affects acceleration. The mass of the object and the force exerted on it determine how great an object’s acceleration is.

## What factors affect how much an object’s momentum changes?

The mass of an object multiplied by it’s velocity. Mass, speed and direction (if direction is important). What factors affect how much an object’s momentum changes? The change in momentum depends on the force that acts and the length of time it acts.

## How far does the blood need to fall until it reaches its terminal velocity?

• Properties of Human Blood. • Blood falling through air increases velocity until force of air resistance that opposes the drop equals downward gravitational pull – at that point, it reaches terminal velocity. • Estimate for maximum terminal velocity for free falling drop of blood was 25.1 ft per second (McDonell)

## Can an object at rest have momentum?

The momentum of any object that is at rest is 0. Objects at rest do not have momentum – they do not have any “mass in motion.” Both variables – mass and velocity – are important in comparing the momentum of two objects.

## What directions do the forces of air resistance and weight act on a falling object?

Falling objects. When an object is dropped it gets faster and faster as it falls. This happens because their weight (the force of gravity) pulls them down towards the centre of the Earth. As they fall through the air, they also experience an upward force called air resistance (drag).

## How does gravity affect the acceleration of an object?

Because a = g, a heavier object doesn’t fall faster than a lighter one. Gravity gives any freely falling body the same acceleration downward (g near the surface of Earth), assuming that no other forces, such as air resistance, are present.

## How can you increase the momentum of an object?

Mass and velocity are both directly proportional to the momentum. If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum.

## What happens to objects when they collide?

This law describes what happens to momentum when two objects collide. The law states that when two objects collide in a closed system, the total momentum of the two objects before the collision is the same as the total momentum of the two objects after the collision.

## How does mass affect the terminal velocity?

Air resistance affects terminal velocity within Earth’s atmosphere. terminal velocity is when frictional forces balance gravitational forces. Two objects of different mass only fall at the same rate in a vacuum. Terminal velocity is the point at which the drag force equals the force of gravity.

## How does the mass affect acceleration?

Mass does not affect the acceleration due to gravity in any measurable way. The two quantities are independent of one another. Light objects accelerate more slowly than heavy objects only when forces other than gravity are also at work. When this happens, an object may be falling, but it is not in free fall.

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