2. Forces and Newton’s Laws

Tension And Normal Force — Quiz

Test your understanding of tension and normal force with 5 practice questions.

Practice Questions

Question 1

A 10 kg block is placed on a horizontal surface. A rope pulls the block upward at an angle of $45^\circ$ to the horizontal with a tension of $70 \, N$. What is the normal force exerted by the surface on the block? (Assume $g = 9.8 \, m/s^2$)

Question 2

A 12 kg block is on a horizontal floor. A rope pulls vertically upward with a force of $40 \, N$. What is the normal force exerted by the floor on the block? (Assume $g = 9.8 \, m/s^2$)

Question 3

A 15 kg object is suspended by two ropes. Rope 1 is at an angle of $30^\circ$ to the vertical and Rope 2 is at an angle of $60^\circ$ to the vertical. The object is at rest. What is the tension in Rope 1? (Assume $g = 9.8 \, m/s^2$)

Question 4

A 20 kg block is on an inclined plane at $25^\circ$ to the horizontal. A rope is pulling horizontally with a force of $50 \, N$. There is no friction. What is the normal force exerted by the plane on the block? (Assume $g = 9.8 \, m/s^2$)

Question 5

A 5 kg block is on an inclined plane at $20^\circ$ to the horizontal. A rope pulls the block up the incline with a force of $30 \, N$ parallel to the plane. There is no friction. What is the normal force exerted by the inclined plane on the block? (Assume $g = 9.8 \, m/s^2$)