Physics Pressure and Force Quiz
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Physics Pressure and Force Quiz

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@MarvellousPrologue

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Questions and Answers

What force makes a rolling ball stop on its own?

Friction force

What force might be responsible for the attraction between a rubbed balloon and a wall?

Electrostatic force

What is the name given to the force acting on a unit area of an object?

Pressure

What conclusion can be drawn from the observation of a fountain of water from a leaking joint in pipes?

<p>Water exerts force on the bottom of the container.</p> Signup and view all the answers

What is the formula to calculate force when given pressure and area?

<p>Force = pressure × area</p> Signup and view all the answers

What is the standard unit to measure atmospheric pressure?

<p>mm of mercury</p> Signup and view all the answers

How do you calculate the area of a surface when given pressure and force?

<p>Area = Pressure / Thrust</p> Signup and view all the answers

What conclusion can be drawn from observing water rushing out faster from a bottom hole in a bucket filled with water?

<p>Pressure exerted by water increases with increasing depth</p> Signup and view all the answers

Explain how a wider strap on a backpack can help distribute the force more effectively. Use a physics equation to support your explanation.

<p>A wider strap distributes the force throughout a greater surface area, reducing pressure. This can be calculated using the equation Pressure = Force/Area.</p> Signup and view all the answers

Define atmospheric pressure and explain its origin.

<p>Atmospheric pressure is the force exerted by the weight of the air in the atmosphere on a surface. It originates from the weight of the air pushing down due to gravity.</p> Signup and view all the answers

How does the human body withstand the pressure exerted by the atmosphere, preventing it from being crushed?

<p>The human body withstands atmospheric pressure as it is also pressurized internally. When diving to depths, gases in the body compress to balance the external pressure.</p> Signup and view all the answers

Discuss why atmospheric pressure decreases as altitude increases above the Earth's surface.

<p>Atmospheric pressure decreases with altitude due to lower air density at higher altitudes. Gravity compresses air molecules more at lower altitudes, resulting in higher pressure.</p> Signup and view all the answers

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