Table of Contents
- 1 Can there be frictional force between two surfaces when there is no relative motion between the two give an example to illustrate your answer?
- 2 Can there be friction without movement?
- 3 Which force opposes motion between two surfaces in direct contact?
- 4 What happens to friction when two objects?
- 5 What are the 2 factors that affect the friction force between 2 surfaces?
- 6 What is termed as the friction between two solid object when at rest?
Can there be frictional force between two surfaces when there is no relative motion between the two give an example to illustrate your answer?
If there is no relative motion between objects in contact, then the friction force (if there is one) is the static force of friction (FS). An example is a box that remains at rest on a ramp.
Can there be friction without movement?
Friction is the force resisting motion between surfaces. There is no requirement that surfaces should already be moving i.e. friction does exist for stationary objects, it is called Static friction.
Can there be frictional force between two surfaces?
If two surfaces are in contact and moving relative to one another, then the friction between them is called kinetic friction. For example, friction slows a hockey puck sliding on ice.
Is there a friction force when object is at rest?
The force required to overcome the friction when trying to set a body at rest in motion is called static friction. Friction acts on objects at rest too. When they are at rest relative to one another, it’s static friction.
Which force opposes motion between two surfaces in direct contact?
Friction is the force that acts to resist sliding between two surfaces that are touching. It can slow down or stop the motion of an object.
What happens to friction when two objects?
For instance, when two objects rub together, friction causes some of the energy of motion to be converted into heat. This is why rubbing two sticks together will eventually produce a fire. That’s why lubricants, or liquids, are often used to reduce the friction — and wear and tear — between moving parts.
When two objects in contact are not moving it means that there is no force between them?
when two objects are in contact with each other and are at rest, then the friction force is zero, because the direction of friction force is always parallel to the surface of contact, and when the two bodies are in contact and also at rest than only two forces act on the body i:e, weight of the body which is downward …
What if there was no friction force?
In a world without friction, the object would continue to slide forever, if not acted on by another force. It states that an object at rest will stay at rest unless acted on by another force, and an object in motion will stay in motion unless acted on by another force.
What are the 2 factors that affect the friction force between 2 surfaces?
The factors that affect the friction between two surfaces are the weight of the object and the coefficient of friction of the surface.
What is termed as the friction between two solid object when at rest?
Because the friction thus far described arises between surfaces in relative motion, it is called kinetic friction. Static friction, in contrast, acts between surfaces at rest with respect to each other. The value of static friction varies between zero and the smallest force needed to start motion.
Does frictional force always oppose motion?
The force of friction always opposes motion or tendency of motion. Hint: Friction is a force which is known as an opposing force to the motion as its direction is opposite to the direction of motion . It is not mandatory that it always results as an opposing force to motion as it helps to walk.