subject

Statics

Physics ⇒ Mechanics

Statics starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Statics. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
A 10 N force is applied perpendicular to a door at a distance of 0.8 m from the hinge. What is the moment about the hinge?
A 2 m long uniform plank weighing 100 N is supported at one end. Where should a 200 N load be placed so that the plank remains horizontal?
A 50 N force acts at a distance of 0.4 m from a pivot. Calculate the moment produced by the force.
A uniform beam of length 4 m and weight 200 N is supported at its ends. A 400 N weight is placed 1 m from the left end. Calculate the reaction force at the right support.
A uniform meter rule is balanced at the 40 cm mark when a 100 g mass is hung at the 10 cm mark. Find the mass of the meter rule.
Define the term 'couple' in the context of statics.
Describe the difference between stable, unstable, and neutral equilibrium.
Describe what happens to the stability of an object if its center of gravity is raised.
Explain why a tightrope walker carries a long pole.
Explain why a wider base increases the stability of an object.
State the principle of moments.
A 5 m long uniform beam of weight 400 N is supported at its ends. A 200 N weight is suspended 1 m from the right end. Calculate the reaction force at the left support.
A uniform beam of length 6 m and weight 300 N is supported horizontally at its ends. A 600 N load is placed 2 m from the left end. Calculate the reaction force at the left support.
A uniform rectangular plate of mass 2 kg is suspended from one corner. Describe the position of its center of gravity relative to the point of suspension.
A uniform rod of length 1.5 m and mass 3 kg is supported horizontally by two supports placed 0.2 m from each end. Calculate the force exerted by each support.
Explain why a book placed on a sloping surface may start to slide if the angle of the slope is increased beyond a certain point.
State two conditions that must be satisfied for a body to be in static equilibrium.
A signboard of mass 50\,\mathrm{kg} is suspended by two cables making angles of 30^\circ and 60^\circ with the horizontal on either side. Calculate the tension in each cable. (Take g = 10\,\mathrm{m/s^2})
A uniform beam of length 8 m and weight 600 N is supported at two points, 2 m from each end. A 400 N load is placed 1 m from the left end. Calculate the reaction force at the right support.
A uniform ladder of length 6\,\mathrm{m} and mass 20\,\mathrm{kg} rests against a smooth vertical wall, making an angle of 45^\circ with the ground. If the ground is rough and prevents slipping, calculate the minimum coefficient of friction required at the base to keep the ladder in equilibrium. (Take g = 9.8\,\mathrm{m/s^2})