Forces, Free Body Diagrams & Equilibrium is one of 9 topics in the Grade 11 Technical Sciences CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. Which of the following is a NON-CONTACT force?
The force of gravity
Tension in a rope
The normal force
Friction
Answer: The force of gravity — The force of gravity is a non-contact force, acting between objects (such as the Earth and an object) without them needing to touch.
Easy
2. At what angle does the normal force always act relative to the surface exerting it?
90 degrees (perpendicular)
0 degrees (parallel)
45 degrees
180 degrees
Answer: 90 degrees (perpendicular) — The normal force always acts perpendicular (at 90 degrees) to the surface exerting it.
Medium
3. Calculate the weight of a 25 kg component, in N, using g = 9,8 m.s^-2.
