Physics 17 Tension and Weight (1 of 11) What is Tension?
Michel van Biezen・2 minutes read
Tension is a force associated with strings, cables, or ropes, measured in Newtons, while weight is the force of gravity on an object equal to mass times acceleration due to gravity, with tension balancing weight to keep an object stationary. Newton's third law explains how the normal force counters the weight force, resulting in no net force, while the direction of tension varies based on perspective, but the magnitude remains constant throughout the string.
Insights
- Tension is the force within strings or cables, measured in Newtons, while weight is the gravitational force on an object. Newton's third law states that the normal force counters weight, resulting in equilibrium.
- In scenarios with pulleys and friction, tension must balance out friction to prevent movement. The direction of tension varies depending on perspective but maintains a consistent magnitude throughout the system.
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Recent questions
What is tension in physics?
Tension is the force in strings or cables.
How is weight defined in physics?
Weight is the force of gravity on an object.
What does Newton's third law state?
Newton's third law involves normal force and weight.
How is tension represented in a free body diagram?
Tension in a free body diagram equals weight.
What role does tension play in scenarios with pulleys and masses?
Tension must equal friction force to prevent movement.
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