Forces and Diagrams Mastery Quiz 2024

What is the resultant force of two forces, 10 N and 15 N, acting along the same line and in the same direction?

• 5 N

• 25 N

• 20 N

• 30 N

If two concurrent forces are acting at an angle of 90 degrees to each other with magnitudes of 3 N and 4 N, what is the magnitude of the resultant force?

• 5 N

• 7 N

• 12 N

• 6 N

What is the equilibrant force of a 10 N force acting to the right?

• 10 N to the left

• 10 N to the right

• 5 N to the left

• 5 N to the right

In a space diagram, what does a line represent?

• The direction of a force

• The magnitude of a force

• The point of application of a force

• Both the direction and magnitude of a force

What is the main purpose of a free body diagram?

• To show all the forces acting on a body

• To calculate the weight of the body

• To determine the velocity of the body

• To illustrate the body's acceleration

Two forces of 5 N and 12 N act on an object along the same line but in opposite directions. What is the resultant force?

• 7 N in the direction of the 12 N force

• 17 N in the direction of the 5 N force

• 7 N in the direction of the 5 N force

• 17 N in the direction of the 12 N force

If three coplanar forces acting at a point can be represented by the sides of a triangle taken in order, this condition is known as:

• Lami's theorem

• Triangle of forces

• Parallelogram law

• Polygon of forces

What does it mean if forces are said to be collinear?

• They act along the same line

• They act at right angles to each other

• They act in opposite directions

• They are equal in magnitude but act in opposite directions

What is the resultant force of three concurrent forces of 10 N each, acting at an angle of 120 degrees to each other?

• 0 N

• 10 N

• 30 N

• 20 N