Science...Please help

posted by .

What is friction?
Can you give me some examples?

-THANK YOU FOR ALL YOUR HELP!

friction: Ever have a pinwheel and move it through the wind? Friction makes the wheel turn.

Ever on a bike an press the brake? Friction makes the wheel stop.

Friction is the force where it stops things from moving

For example , if your trying to move a table and the table cannot move , well that's friction which is stopping you from moving it

You can notice the change in friction when sliding on a patch of ice that suddenly ends. The small layer of water between the ice and your feet reduces the friction, but the friction of the new surface is much greater, causing you to lose your balance.

A meteor mets the friction of the air, causing it to heat up and glow.

I hope this helps a little more. Thanks for asking.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics and bicycles

    I have aq uick question about bicycles relating to physics. I hope you can understand this! First (technical question) why don't bikes move backward when you pedal backward?
  2. science

    Examples of positive, negative and neutral friction?
  3. English

    1. Have you ever chatted with a foreigner at a chatroom?
  4. Physics

    I've been stuck on this problem for a while. Im not sure where to even begin. A bike wheel is rotating with an angular velocity of 3.1 rev/s. If the coefficient of kinetic friction between the wheel and brakes is .87, then find the …
  5. Science

    A 6 kg grinding wheel of radius 0.2 m rotates at a constant rotational frequency of 4 rad/s when an object makes contact with the outer edge of the wheel. Friction causes the wheel to stop in 2 seconds. What is the average torque on …
  6. Physics

    James Bond and the ever present bond girl are on a dirt bike escaping from a car load of bad guys. If we have the following conditions: James Bond’s mass is 84 Kg The Bond Girl is 48Kg The Dirt Bike’s mass is 113.6 Kg The tires …
  7. physics

    A cyclist is attached to a rope which is looped over a pulley (disc of mass 10kg and radius 0.5m). The rope is then attached to a hanging block of mass 5kg. What force must the cyclist generate such that the block will move with an …
  8. Physics

    A student holds a bike wheel and starts it spinning with an initial angular speed of 7.0 rotations per second. The wheel is subject to some friction, so it gradually slows down. In the 10-s period following the inital spin, the bike …
  9. Physics

    An snowboard manufacturer wants to make the smoothest boards ever, she believes that can be achieved by reducing friction as much as possible. Describe 3 things that could be change on a board so that friction between it and the ice …
  10. Physic

    A 25 kg box is set on a flat surface with us=0.62 and uk=0.49. A force of 100N is applied to the box through a rope which makes and angle of 30 degrees with the horizon. (a)what's the component of Fa that is attempting to move the …

More Similar Questions