What does it mean when a force is balanced?
Balanced forces are equal in size and opposite in direction. When forces are balanced, there is no change in motion. In one of your situations in the last section, you pushed or pulled on an object from opposite directions but with the same force.
What is the force of resistance?
In physics, resistive force is a force, or the vector sum of numerous forces, whose direction is opposite to the motion of a body, and may refer to: Friction, during sliding and/or rolling. Magnetic repulsion, when a magnetic object moves against another magnetic field.
Why do we ignore air resistance?
Air resistance is insignificant for heavy objects precisely because it doesn’t depend on the mass. This is because a force is just an interaction that tries to change the momentum of an object, and the momentum depends on the mass; the larger the mass, the larger the momentum, and the more force you need to change it.
What is the force water resistance?
Water resistance is a type of force that uses friction to slow things down that are moving through water. It is often called drag. Water resistance happens because of the particles in water or the fluid.
Which has more resistance water or air?
Air resistance increases with speed. Water resistance is the same type of force but it is stronger because water is a thicker (more viscous) fluid that air. A submarine is able to move much faster on the surface of the sea than it can when it is submerged.
Is air stronger than water?
At sea level air pressure is actually stronger than water pressure. That means that the pressure pushing up from the water has to exactly equal the pressure pushing down from the air.
Is air better than water?
Follow-Up #1: water and air pressure At sea level air pressure is actually stronger than water pressure.
What are the effects of water resistance?
Water resistance is a type of friction. Like friction and air resistance, it SLOWS THINGS DOWN, trying to stop them moving. Water resistance can also be useful at times. When you are swimming and you push against the water with your hands, the water resistance pushes back and helps you to move forward.
Is water resistance a push or pull force?
A force that tries to slow things down that are moving through air. It is a type of friction. Air resistance and water resistance are both sometimes called drag. A push or a pull….Forces.
| Word | Pronunciation | Meaning |
|---|---|---|
| lubricant | loo-brick-ant | A substance (normally a liquid) used to reduce friction. |
What is mean by water resistant?
Water-resistant: able to resist the penetration of water to some degree but not entirely. Water-repellent: not easily penetrated by water, especially as a result of being treated for such a purpose with a surface coating. Waterproof: impervious to water.
Which has more resistance is harder to push against air or water?
Actually, water pressure is generally stronger than air pressure. If air squirted in, then the air pressure would have to be higher. But since we know that the water would squirt out, we know that the water’s pressure must be stronger.