If the surface tension of a liquid is 0.072 N/m, what is the force acting on a w
Practice Questions
Q1
If the surface tension of a liquid is 0.072 N/m, what is the force acting on a wire of length 0.5 m placed on the surface of the liquid?
0.036 N
0.072 N
0.144 N
0.5 N
Questions & Step-by-Step Solutions
If the surface tension of a liquid is 0.072 N/m, what is the force acting on a wire of length 0.5 m placed on the surface of the liquid?
Step 1: Understand that surface tension is a force per unit length acting along the surface of a liquid.
Step 2: Identify the given values: Surface tension = 0.072 N/m and Length of the wire = 0.5 m.
Step 3: Use the formula to calculate the force: Force = Surface Tension × Length.
Step 4: Substitute the values into the formula: Force = 0.072 N/m × 0.5 m.
Step 5: Perform the multiplication: 0.072 × 0.5 = 0.036.
Step 6: Conclude that the force acting on the wire is 0.036 N.
Surface Tension – Surface tension is the force per unit length acting at the surface of a liquid, which causes it to behave like a stretched elastic membrane.
Force Calculation – The force acting on an object at the surface of a liquid can be calculated by multiplying the surface tension by the length of the object in contact with the liquid.
