Static Equilibrium Worksheet
A Grade 12 Physics worksheet covering concepts of static equilibrium, forces, and torque.
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Static Equilibrium Worksheet
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Read each question carefully and provide detailed answers. Show all your work for calculations.
1. Which of the following conditions must be met for an object to be in static equilibrium?
Net force is zero, and net torque is non-zero.
Net force is non-zero, and net torque is zero.
Both net force and net torque are zero.
Both net force and net torque are non-zero.
2. A 20 kg sign is suspended by two ropes making angles of 30° and 60° with the horizontal. What is the tension in the rope making a 30° angle?
98 N
170 N
196 N
226 N
3. Static equilibrium implies that an object is either at rest or moving with a constant .
4. The sum of all external acting on an object in static equilibrium must be zero.
5. For rotational equilibrium, the net about any pivot point must be zero.
6. A uniform ladder of length L and mass m leans against a smooth wall, making an angle θ with the ground. The ground is rough. Draw a free-body diagram for the ladder and list all forces acting on it.
7. Explain the difference between stable, unstable, and neutral equilibrium with examples.
8. An object in static equilibrium cannot have any forces acting on it.
True
False
9. Torque is a rotational equivalent of force.
True
False
Match the term on the left with its definition on the right.
10. Center of Mass
a. The tendency of a force to rotate an object about an axis.
11. Torque
b. A state where an object is at rest and remains at rest.
12. Static Equilibrium
c. The point where the entire mass of an object can be considered to be concentrated.