2.1. Concept of Inertia

Try these first

1. 1.

   What does inertia refer to in physics?

   Hint

   Think about the behavior of an object when not acted upon by a force.

2. 2.

   Write the formula for calculating inertia force in a structure.

   Hint

   What do you multiply to find force from mass and acceleration?

3. 3.

   What is inertia primarily responsible for?

   • A) Moving objects
   • B) Resisting changes in motion
   • C) Causing motion

   Hint

   Think about what happens to objects when no force is applied.

4. 4.

   True or False: Inertia force increases with mass.

   • True
   • False

   Hint

   Consider how mass impacts a body's resistance to motion.

5. 5.

   Calculate the inertia force experienced by a 500 kg object when accelerated at 4 m/s².

   Hint

   Use the formula for inertia force and substitute the values of mass and acceleration.

6. 6.

   Discuss how increasing the mass of a building impacts its response during an earthquake. Include an example of a structural design decision that mitigates this impact.

   Hint

   Consider the trade-off between safety and material choice for effective designs.