0
Add your answer:
Earn +20 pts
Why does some friction occur with seemingly smoth surfaces?
Some friction will occur with seemingly smooth surfaces because at a molecular level, nothing is smooth.
Does water reduce friction?
Water does reduce friction, as the liquid essentially lubricates the surface between the two objects. However, this only applies to affecting other friction. It has its own friction when objects move through a body of water.
When a machine drills holes in metal some of the work input is used to overcome what?
Friction :) it says so in in my science book.
Friction and speed?
Speed is how fast something is moving. When to things are traveling at the same speed and rubbing together, they can cause friction.
What is a force And what are some examples of force?
A force is a push or pull on an object some ex are friction
What are some examples of rolling friction?
Some examples of rolling friction include a car's tires rolling on the road, a ball rolling on the ground, and a person riding a bike. Rolling friction occurs when an object rolls over a surface and is caused by the deformation and adhesion of the surfaces in contact.
What effect does friction have on a rolling ball?
Friction between the ball and the surface it is rolling on will slow down the ball's motion by converting some of its kinetic energy into heat. As a result, the ball will roll for a shorter distance and with a lower speed compared to a scenario with minimal friction.
Why does a rolling ball stop after some time?
A rolling ball stops due to the presence of friction between the ball and the surface it is rolling on. As the ball rolls, friction gradually slows down its motion by converting its kinetic energy into heat. Additionally, air resistance can also contribute to the ball's deceleration.
What is the cause of rolling friction?
Rolling friction is caused by the deformation of the surfaces in contact with each other, such as tires on a road. As an object rolls, it experiences resistance due to the deformation and recovery of these surfaces, which converts some of the kinetic energy into heat and slows down the motion.
How does frictoin help us in every day life?
There are four types of friction; sliding rolling, fluid and static, so depending on what you are doing friction is going to help you some how.
How is static friction and rolling friction similar?
They are both forms of friction. rolling friction occurs because two objects are rubbing against each other. under a microscope you would see that the two objects have bumps and these bumps run into each other, causing both objects to change velocity. thus rolling friction resists the relative motion of two objects. however, static friction occurs when two objects are pressed against each other and they have the same velocity, the microscopic bumps have time to sink in to each otherand creates a better grip than rolling friction. thus static friction resists any relative motion between two objects and is the reason why pushing a car is sudenly easier when it has some motion.
What are two examples of friction?
Say you are driving a car or riding a motorcycle and you just remove you foot or hand from the accelerator. What will happen? After some time depending on your velocity, the vehicle will stop. Why? Consider your entire vehicle an ideal system meaning that no part provides any sort of friction. Now consider road, road is rough and will definitely provide friction. Since your vehicle's tires are rolling against the road, the road will provide friction in the direction opposite to that of your vehicle's motion. In real situations, both tire and road will contribute to the rolling friction.
What Are some conditions that will change the acceleration of the rolling objects?
Some conditions that can change the acceleration of rolling objects include the object's mass (heavier objects accelerate slower), the force applied to the object (larger force leads to greater acceleration), and the surface friction (higher friction reduces acceleration). Additionally, the shape and size of the object can also affect its acceleration.
Is a bicycle rolling down a hill friction?
Yes, as the bicycle rolls down the hill, there is still some friction present between the wheels and the surface of the hill. This friction helps to slow down the bicycle's descent and eventually bring it to a stop.
What are 3 types of kinetic friction?
Static friction: Acts on an object at rest, preventing its movement when a force is applied. Sliding friction: Occurs when two solid surfaces slide past each other, resisting the motion. Rolling friction: Opposes the motion of a rolling object, such as a wheel or ball, as it moves across a surface.
What transformotion of energy happen in a rolling toy?
Kinetic energy is used to overcome friction and is dispersed as heat; some energy is converted to sound.
How can the magnitude of friction be reduce?
Some ways to reduce the magnitude of friction are to use lubricants as they fill up in the irregularities and make the surface smoother, switch from sliding kinetic friction to rolling kinetic friction and by smooth surfaces that rub against each other.by polishing by streamlining in fluids . by ball bearing
