Accompanied force with Motion: The Concept of Force at Inertia

The video tutorial explains the concept of inertia, using two examples to illustrate how objects resist changes in their state of motion. The first example involves passengers on a bus who lurch forward when the bus stops suddenly, demonstrating the need for seatbelts. The second example shows a boy holding coins that fall when he stops abruptly, as the coins continue moving forward due to inertia. The video concludes with a clear explanation of inertia as a force that maintains an object's motion unless acted upon by an external force.

What happens to passengers in a bus when it stops suddenly?

• They move backward.

• They jump up.

• They remain seated without moving.

• They lurch forward.

What is the force that causes passengers to move forward when a bus stops suddenly?

• Gravity

• Inertia

• Friction

• Momentum

Why are seatbelts important in vehicles?

• To make the ride more comfortable

• To keep passengers warm

• To prevent passengers from falling asleep

• To counteract inertia and prevent injuries

What happens to the coins when the boy stops suddenly?

• They fall to the ground.

• They disappear.

• They move backward.

• They stay in his hand.

Why do the coins fall from the boy's hand when he stops suddenly?

• Because of friction

• Because of wind resistance

• Because of inertia

• Because of gravity