Forces and Energy: Increasing the Pushing Effect

Pressure is defined as the pushing effect of a force.

You can increase the pushing effect of a force by increasing the force on the knife or using a sharper knife.

The equation is: pressure = force / area.

<p>The unit of force is the newton, the unit of area is the meter squared, and the unit of pressure is newtons per meter squared (N/m²).</p> Signup and view all the answers

<p>Using a sharper knife decreases the surface area in contact with the clay, which increases pressure.</p> Signup and view all the answers

<p>The camel does not sink because its weight is distributed over a large area due to its large feet, reducing the pressure on the sand.</p> Signup and view all the answers

<p>The woman experiences small pressure from each nail because her weight is distributed over many hundreds of nails.</p> Signup and view all the answers

<p>When the area decreases, the pressure increases.</p> Signup and view all the answers

<p>If the area is in millimeters squared, the unit of pressure would be newtons per millimeter squared (N/mm²).</p> Signup and view all the answers

<p>To make the dam stronger where the pressure from the water is greatest</p> Signup and view all the answers

<p>Increases pressure</p> Signup and view all the answers

<p>In random directions</p> Signup and view all the answers

<p>Pressure increases</p> Signup and view all the answers

<p>The lower water has higher pressure due to depth</p> Signup and view all the answers

<p>Strengthens the dam at points where water pressure is highest</p> Signup and view all the answers