The measure of friction is the amount of energy lost by heating through contact. This energy is generally lost through abrading the surfaces, or at least re-arranging the surface molecules.
Thus it will absorb kinetic energy, and the object will slow down.
Usually, friction will slow an object down. Here is a counter-example: if you drop something on a conveyor belt (or a similar moving object), friction between the object and the conveyor belt will make the object speed up, until it reaches the speed of the conveyor belt. Two details are worth noting:
1. In the above example, you can also say that the object still slows down, if you take its speed in relation to the conveyor belt.
2. In any case, energy is wasted, in the sense that kinetic energy is converted into heat.
NO! Friction con not speed up an object but it can slow down one. :)
Slow down
Yes
The friction can make you slow down , but if you lose friction you will go at a faster rate of speed
Friction always works against the velocity and so it always works to slow down an object.
GravityGravity can do all three to an object, the best example of this would be tossing a ball straight up in the air: 1) It initially slows down to a halt at the highest point of ascent, 2) Then speeds up as it falls 3) And of course it changes directions at the top. FrictionFriction, however, is a different matter. Friction that deals with motion (dynamic friction) always acts in the opposite direction of motion; therefore, it cannot accelerate an object in the same direction as it is moving. Due to this, friction can only slow down an object. Can it reverse the direction of motion? Since it cannot speed up an object, it cannot make an object move after friction has slowed it down to a standstill like gravity can from the example above. Thus, in conclusion: gravity can slow down, speed up an object and change its direction; however, friction can only slow down an object.
Friction causes object in motion to slow down. As friction increases, it takes more and more energy for an object to keep its inertia (momentum) and it begins to slow down.
Friction causes the bike to slow down.
Friction will reduce an object's speed.
The friction can make you slow down , but if you lose friction you will go at a faster rate of speed
Friction always works against the velocity and so it always works to slow down an object.
GravityGravity can do all three to an object, the best example of this would be tossing a ball straight up in the air: 1) It initially slows down to a halt at the highest point of ascent, 2) Then speeds up as it falls 3) And of course it changes directions at the top. FrictionFriction, however, is a different matter. Friction that deals with motion (dynamic friction) always acts in the opposite direction of motion; therefore, it cannot accelerate an object in the same direction as it is moving. Due to this, friction can only slow down an object. Can it reverse the direction of motion? Since it cannot speed up an object, it cannot make an object move after friction has slowed it down to a standstill like gravity can from the example above. Thus, in conclusion: gravity can slow down, speed up an object and change its direction; however, friction can only slow down an object.
friction
true. Friction DOES slow things down. In fact, if there was no friction once something started moving it wouldn't be able to stop Friction can slow the things down. It's true.
Friction causes object in motion to slow down. As friction increases, it takes more and more energy for an object to keep its inertia (momentum) and it begins to slow down.
Friction actually tries to slow objects down. You have to add more force or try having less mass.
Friction actually tries to slow objects down. You have to add more force or try having less mass.
Friction causes the bike to slow down.
Friction will slow down the moving object
Friction will slow down the moving object