Springs, Torque & Static Equilibrium — Drills · Grade 12 Science
Chapter: Forces, Rotation & EquilibriumWhat these drills covers
By the end of Springs, Torque & Static Equilibrium you should be able to:
- I can calculate spring force and energy within an elastic model.
- I can apply both force and torque balance about a stated pivot.
2 questions, numeric and written answer, each with a worked explanation.
Vocabulary used: spring constant, torque, lever arm.
Problem 1
k=100N/m,x=.03 m. Find force magnitude.
Hints
Write the relationship first; substitute with consistent units.
Answer and explanation
3 N
100×.03=3.
Problem 2
Why can zero net force still permit rotation?
Answer and explanation
The force lines can produce a nonzero net torque about the object.
Response criteria
- State a scientifically accurate conclusion.
- Show the calculation or mechanism that supports it.
- Include units, conditions, or limits where relevant.