The tendency of an object to resist any change is called __________.

The tendency of an object to resist any change is called __________.

• A. Momentum
• B. Inertia
• C. Gravity
• D. Friction

Answer: (B)

Inertia is the tendency of an object to resist any change in its motion or its state of rest. This means an object at rest tends to stay at rest, and a moving object tends to continue moving in the same direction and at the same speed unless an external force acts on it. The amount of inertia increases with mass, so heavier objects resist changes more than lighter ones. That’s why it takes more effort to start or stop a heavy truck than a small toy car. This idea comes from Newton’s first law, the law of inertia. It’s different from momentum (which is mass times velocity), gravity (a force pulling objects toward Earth), and friction (a force that resists motion between surfaces).

Inertia is the tendency of an object to resist any change in its motion or its state of rest. This means an object at rest tends to stay at rest, and a moving object tends to continue moving in the same direction and at the same speed unless an external force acts on it. The amount of inertia increases with mass, so heavier objects resist changes more than lighter ones. That’s why it takes more effort to start or stop a heavy truck than a small toy car. This idea comes from Newton’s first law, the law of inertia. It’s different from momentum (which is mass times velocity), gravity (a force pulling objects toward Earth), and friction (a force that resists motion between surfaces).