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Is wind resistance greater near the ground or high in the air?
Wind resistance is typically greater near the ground due to surface friction and obstacles that disrupt airflow. As you move higher in the air, wind resistance decreases because the air is less turbulent and obstacles are less frequent, allowing for smoother flow.
Why does an ice-hockey puck have less friction than a ball rolling on the ground?
An ice hockey puck has less friction than a ball rolling on the ground because the puck's smooth, flat surface makes contact with the ice, reducing friction. In contrast, a ball rolling on the ground has more points of contact with the rough surface, leading to increased friction that slows it down. Additionally, the presence of air between the ball and the ground can also contribute to more friction.
Why the density of air is greater on ground than top of mountain?
The density of air is greater at ground level because of the weight of the air above pressing down. As you go higher in altitude, there is less air above exerting pressure, leading to lower air density at the top of a mountain.
What two sources of friction do you have to overcome when walking?
The two main sources of friction to overcome when walking are air resistance and ground friction. Air resistance creates drag as you move through the air, while ground friction creates resistance between your feet and the surface you are walking on. Both of these forces must be overcome to maintain forward motion while walking.
What are the 3 examples of unbalanced forces?
When a person pushes a door, creating a force greater than the friction on the hinges, causing the door to open. When a car accelerates, the engine exerts a forward force greater than the resistive forces like air resistance and friction. When a book slides off a table due to the force of gravity being stronger than the friction keeping it in place.
Why is there a greater risk of explosion with dust in the air rather than dust on ground?
There is a greater risk of explosion with dust in the air rather than dust on ground. This due to the fact that dust combusts quickly and air supports combustion while the ground does not.
How dies the friction between the ground and molecules in the air affect wind?
The wind at the surface of the ground where the molecules are having friction is moving slower than the wind above the surface.
What causes a flower to fall slower to the ground than a golf ball?
Air resistance. (friction).
Is wind resistance greater near the ground or high in the air?
Wind resistance is typically greater near the ground due to surface friction and obstacles that disrupt airflow. As you move higher in the air, wind resistance decreases because the air is less turbulent and obstacles are less frequent, allowing for smoother flow.
Why is there a greater risk of explosion with dust in the air than with dust on the ground?
Cause dust can combust real fast and air supports burning the ground doesn't
I Need to know what happens when a pram is moving i need to 1Know when pram is speeding up and slowing down and what forces affect wheels 2When pram is speeding up normal slowing down?
The main forces acting on the pram will be the force the person pushing the pram exerts on it, the friction against the ground and air resistance. When the pram is speeding up the force the pusher exerts will be larger than the combined force of the air resistance and the friction against the ground. When the pram is moving at a constant speed the forces acting on it will be balanced I.e. pushing force= air resistance+friction. When the pram is slowing down the air resistance and the friction will be greater than the pushing force.
Why does an ice-hockey puck have less friction than a ball rolling on the ground?
An ice hockey puck has less friction than a ball rolling on the ground because the puck's smooth, flat surface makes contact with the ice, reducing friction. In contrast, a ball rolling on the ground has more points of contact with the rough surface, leading to increased friction that slows it down. Additionally, the presence of air between the ball and the ground can also contribute to more friction.
Why the density of air is greater on ground than top of mountain?
The density of air is greater at ground level because of the weight of the air above pressing down. As you go higher in altitude, there is less air above exerting pressure, leading to lower air density at the top of a mountain.
How does friction affect the movement of a scooter?
there could be friction inside the motor. there is friction on the wheels of the scooter and the ground. there is air friction when you move on a scooter.
What two sources of friction do you have to overcome when walking?
The two main sources of friction to overcome when walking are air resistance and ground friction. Air resistance creates drag as you move through the air, while ground friction creates resistance between your feet and the surface you are walking on. Both of these forces must be overcome to maintain forward motion while walking.
What are the 3 examples of unbalanced forces?
When a person pushes a door, creating a force greater than the friction on the hinges, causing the door to open. When a car accelerates, the engine exerts a forward force greater than the resistive forces like air resistance and friction. When a book slides off a table due to the force of gravity being stronger than the friction keeping it in place.
Is air resistance stronger than friction?
No. Its a form of friction.
