By winding the string around the axle the mouse trap's spring is stretched and now you have your stored energy. As the mousetrap car is released the mouse trap pulls the string off of the axle causing the wheels to turn and off the vehicle goes.
Accordingly, how do you reduce friction in a mousetrap car?
- If the string is just wrapped around the axle, the car may barely move.
- Use the longest lever available to extend the mouse trap arm as far as possible.
- Reduce friction on the axle by minimizing the surface area of the support that contacts the drive axle.
- Reduce shock by using a bit of sponge as simulated cheese.
What is the axle of a mousetrap car?
An important part of a mousetrap vehicles propulsion system is the axle hook. Learn how to make and attach an axle hook in order to propel a mousetrap racer. A mousetrap powered car is a vehicle that is powered by the energy of a wound-up mouse trap's spring.
There are a number of ways to reduce friction:
- Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.
- Lubrication is another way to make a surface smoother.
- Make the object more streamlined.
- Reduce the forces acting on the surfaces.
- Reduce the contact between the surfaces.
Unhelpful frictional forces. Friction can also be unhelpful. If you don't lubricate your bike regularly with oil, the friction in the chain and axles increases. When there is a lot of friction between moving parts, energy is lost to the surroundings as heat.
The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy. 2. Due to friction we have to exert more power in machines.
Since friction is a resistive force that slows down or prevents motion, it can be a nuisance, because it can hinder motion and cause the need for expending extra energy. Friction can also cause parts in contact to heat up and can cause parts in contact to wear out.
Anytime two objects rub against each other, they cause friction. Friction works against the motion and acts in the opposite direction. When one object is sliding on another it starts to slow down due to friction. This means it loses energy.
Causes of Friction. Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.
The frictional force acting on a body placed on a horizontal plane is F = μ R where is the normal reaction and is equal to weight of a body in this case. And is the coefficient of friction. But, if gravity is zero, then is the frictional force zero (ignoring all other friction due to atmosphere etc.)?
There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases.
Rubbing both hands together to create heat. A sled sliding across snow or ice. Skis sliding against snow. A person sliding down a slide is an example of sliding friction.
"Static friction" would be more stronger than kinetic friction. The reason behind this is that static friction acts when the body is at rest. So, more number of interlocking between the object and the surface for a long time which is required to be overcome first.
Static friction is the friction that exists between a stationary object and the surface on which it's resting. A frictional force occurs when you try to push an object alongside a surface. Once the objects have already started moving, kinetic friction takes over.
The smoothness of the contacting surfaces influences friction. If two surfaces are rough than if they are smooth, then is important to action witha greater force. Friction does not depend on the amount of surface area in contact between the moving bodies or (within certain limits) on the relative speed of the bodies.
Introduction to the ways of increasing and decreasing friction: When a body slides over the surface of another body, there is an opposing force acting in opposite direction of motion and this opposing force is called friction.Their are various ways by means of which, we can increase or decrease friction.
Pull affects gravity and friction in different ways. Friction, however, doesn't pull objects down. In fact, unlike gravity, friction doesn't rely on a natural force. Instead friction occurs when something like a machine or individual pulls a sliding object in the opposite direction of another object.
However, note that, this is only because there is no other force pushing the object to the surface, a unique detail of those type of problems. Friction in settings where there is another force pushing two surfaces together, for example the friction in a car engine, does not require gravity at all.
the friction force partly cancels some of the gravity force pulling the sled down. These two forces affect many motions on Earth. So, it means the effect of gravity maybe reduced due to friction of molecules/particles in between. Sources- Does the earth's gravity affect horizontal movement?
A force is needed to either get an object moving or to stop it from moving. This then leads us to the concept of inertia, which is simply an object's tendency to resist a change in its motion. Because the bowling ball has a larger mass, it will be harder to change its motion and overcome its inertia.
Friction is the force that one surface exerts on another when to rub against each other. Friction is useful in helping you walk because without friction your shoes would only slide across the room, and you would never move forward because friction acts between your shoes and the floor.
Transcript of Friction can be harmful or helpful. -without friction the tires could not push against the ground to move the car forward and the brakes could not stop the car. -holes in your socks and holes at the knee of your jeans. -lubricants are substances that are applied to surfaces to reduce friction between them
I think that as the car moves forward the tire pushes the road in backward direction and the friction force is the reaction force acting as mentioned in Newton's Third law. So the force from the wall onto the spring is simultaneously a reaction force and is the net force on the puck that is causing acceleration.