Force

The video tutorial explains the concept of force, defining it as a push or pull that changes an object's motion. It highlights Isaac Newton's contributions to understanding force and motion, illustrating how forces can act at a distance, such as gravity, or through contact, like friction and applied force. The tutorial also discusses how gravitational force keeps the Earth in orbit and how rockets overcome this force. It concludes by encouraging viewers to reflect on whether gravity pushes or pulls us towards the Earth.

What is the basic definition of force as introduced in the video?

• A state of rest

• A type of energy

• A form of matter

• A push or a pull

Who is the scientist credited with explaining much of what we know about force and motion?

• Isaac Newton

• Albert Einstein

• Nikola Tesla

• Galileo Galilei

What force keeps the Earth in orbit around the Sun?

• Electromagnetic force

• Magnetic force

• Gravitational pull

• Nuclear force

Which of the following is an example of a contact force?

• Nuclear force

• Friction

• Magnetic force

• Gravitational force

What is the force called that is exerted by a surface to support the weight of an object resting on it?

• Elastic force

• Applied force

• Tension force

• Normal force