# Which of the following variables will have a direct effect upon the amount of air resistance experienced by an object?

## Which of the following variables will have a direct effect upon the amount of air resistance experienced by an object?

To keep the topic simple, it can be said that the two most common factors that have a direct effect upon the amount of air resistance are the speed of the object and the cross-sectional area of the object.

## Can you conclude that a car is not accelerating if its speedometer indicates a steady 60 km h?

3. Can you conclude that a car is not accelerating if its speedometer reads a steady 60 km/hr? Explain your answer. You cannot make this assumption because the direction of travel of the car could be changing which means that it is accelerating.

## What are the forces acting on a golf ball travel upward and rightward through the air?

According to Newton’s law of universal gravitation, every mass in the universe attracts every other mass with a force proportional to the product of their masses and inversely proportional to the square of the distance between them. Therefore,The forces acting upon the golf ball are: gravity and air resistance.

## Which of the following graphs best represents an object moving in the positive direction at a constant speed?

An object moving in the positive direction at constant speed will be represented on a v-t graph by a horizontal line (slope = a = 0 m/s/s) positioned in the + velocity region.

## Do heavier objects fall faster than lighter ones when starting from the same position?

Earth pulls on everything the exact same amount. Everything gets accelerated towards the Earth exactly the same way. The force that objects feel may be different because they have different masses, but the acceleration on Earth they experience is exactly the same.

## What happens to the air resistance when the speed of the object increases?

The force of air resistance is approximately proportional to the speed of the falling object, so that air resistance increases for an object that is accelerating, having been dropped from rest until terminal velocity is reached.

## How can something be accelerating when not speeding up or slowing down?

Yes, an object can be accelerated without speeding up or slowing down. We know that acceleration is referred as the rate of change of velocity and the velocity is the speed in a particular direction and is a vector quantity. So, if the velocity can either changes its speed or direction, there is some acceleration.

## How do you know if acceleration is speeding up or slowing down?

If acceleration points in the same direction as the velocity, the object will be speeding up. And if the acceleration points in the opposite direction of the velocity, the object will be slowing down.

## Why does acceleration not mean speeding up?

Acceleration means that an object changes it speed, its direction, or both. How are speeding up and slowing down described? When you think of something accelerating, you probably think of it as speeding up. But an object that is slowing down is also accelerating.

## What is true about inertia?

Inertia is a force which keeps stationary objects at rest and moving objects in motion at constant velocity. Inertia is a force which brings all objects to a rest position. All objects have inertia. A more massive object has more inertia than a less massive object.

## How does a moving object stop on its own?

Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance). Even air causes friction. Friction creates heat.

## What forces are equal in size but opposite in direction?

Balanced forces: Balanced forces are those that are opposite in direction and equal in size. Balanced forces are considered to be in a state of equilibrium.

## What has a direct effect on air resistance?

It can therefore be said that the two most common factors that have a direct effect upon the amount of air resistance are the speed of the object and the cross-sectional area of the object. Ergo, both increased speeds and cross-sectional areas will result in an increased amount of air resistance.