0
What else can I help you with?
How is the motion of a hockey puck on ice different from the motion of a hockey puck on the street interms of forces?
On the ice, a hockey puck is pushing against much less surface friction, so it will slide with relative ease. On the street, a puck is forced to push against the pavement which it cannot do very well causing it to either stop or bounce across the surface.
Example of low co efficient of friction?
Ice on ice has a low coefficient of friction, making it easier for objects to slide across its surface with minimal resistance.
What kind of a simple machine is an ice pick?
An ice pick is a type of wedge, which is a simple machine. The sharp pointed end of the ice pick concentrates force over a small area to make it easier to break apart ice.
How does salt water affect the melting of ice?
Salt water lowers the freezing point of ice, causing it to melt at a lower temperature than pure water. This is because the salt disrupts the formation of ice crystals, making it easier for the ice to melt.
What is interesting about a world without friction?
Nothing would stay still. Without friction you cannot stand, let alone walk. The easiest way to think of it is comparing walking on ice and walking on pavement. Ice has a smoother surface than pavement, for good reason; the ice has less friction due to that smooth surface, so you cannot 'grip' the ground with your foot/boot/shoe etc. However the pavement is designed to be bumpy, textured so that you can find purchase when walking, even if it is wet.
Why does rock salt work on pavement?
Rock salt, or sodium chloride, works on pavement by lowering the freezing point of water. When applied to ice or snow, the salt causes the ice to melt and helps prevent new ice from forming. This process creates a brine solution that makes it easier to remove snow and ice from the pavement.
What allows you to predict ice formation on the pavement surface?
The rate of change of the pavement temperature
Why does it take longer for cars to stop on pavement covered in ice then pavement that is dry?
WHY!It is because the ice makes the friction between the tires and the pavementgreater.
Why is dry pavement creates more friction than ice pavement does?
Dry pavement creates more friction than ice pavement because when surfaces are dry, there is more contact between the tires and the road, leading to increased friction. On the other hand, ice has a low coefficient of friction, causing tires to slip more easily since there is less traction between the ice and the tires.
Why is it easier to run across grass than it is along an icy pavement?
Well... An icy pavement doesn't have a lot of friction. Unless you have special shoes used for walking on ice that will give you better grip. Grass has a ton more friction than ice. But if you wanted to get even better grip, use cleats.
what factors can influence the formation of ice on the pavement?
Factors that can influence the formation of ice on pavement include temperature fluctuations, presence of moisture on the surface, shade from surrounding structures or trees, and traffic volume compacting snow into ice. Additionally, the type of pavement material and the effectiveness of snow and ice removal methods can also impact ice formation.
Why is salt thrown on ice in the winter?
Salt is used on ice in the winter to lower the freezing point of water and melt the ice. When salt is applied to ice, it disrupts the bond between the ice and the pavement, making it easier to remove the ice by shoveling or plowing.
Why do you skate faster on ice than on the street?
Skating on ice reduces friction as the skate blade glides more smoothly over the surface compared to the rougher pavement on the street. This lower friction allows for faster acceleration and higher speeds on the ice. Additionally, the lack of air resistance on ice contributes to the ability to skate faster compared to on the street.
Why is more diffucult to walk on ice than on pavement?
Ice is seriously more slippy.
Why does ice wedging cause potholes?
Ice wedging causes potholes by expanding cracks in pavement when water seeps into them, freezes, and expands. This repeated cycle of freezing and thawing weakens the pavement, leading to the formation of potholes.
Where do hockey players play?
On the field (best kind), the ice, gym floor, or pavement.
Why is the pavement black and the lines white?
The pavement is black primarily due to the use of asphalt, which is made from bitumen—a dark, sticky substance derived from petroleum. The black color helps absorb heat from sunlight, which can aid in melting snow and ice in colder climates. The lines are painted white for high visibility, as white contrasts sharply against the dark pavement, making them easier for drivers and pedestrians to see, especially at night or in low-light conditions.
