Force and Newton's Laws: Newton's First Law of Motion

The video tutorial explains Isaac Newton's laws of motion, focusing on the first law. It describes how objects in motion stay in motion and objects at rest stay at rest unless acted upon by an external force, with friction being a common force. The concept of inertia is introduced, explaining how it affects motion and why safety belts are important in vehicles.

Who developed the laws of motion that are still significant today?

• Albert Einstein

• Isaac Newton

• Galileo Galilei

• Nikola Tesla

What is the main force that prevents objects from moving indefinitely on Earth?

• Gravity

• Magnetism

• Friction

• Air resistance

According to Newton's first law, what will happen to an object at rest if no external force acts on it?

• It will start moving

• It will accelerate

• It will remain at rest

• It will change direction

What term did Newton use to describe an object's resistance to changes in its motion?

• Acceleration

• Momentum

• Velocity

• Inertia

Why do we wear seatbelts in vehicles according to the concept of inertia?

• To keep the body in place during sudden stops

• To increase speed

• To reduce fuel consumption

• To prevent motion sickness