The Power of Force: Understanding Pushes, Pulls, and Motion

This video tutorial introduces the concept of force, defined as a push or pull, with its unit being the newton, named after Sir Isaac Newton. It explores the effects of force, such as moving objects, changing their direction, speed, or shape. The video classifies force into contact and non-contact types, providing examples of each. Contact forces require physical touch, like opening a door, while non-contact forces, such as magnetic, electrostatic, and gravitational forces, act without direct contact. The video illustrates these concepts with real-world examples, emphasizing the role of gravity in natural phenomena.

What is the unit of force named after?

• Nikola Tesla

• Albert Einstein

• Isaac Newton

• Galileo Galilei

Which of the following is NOT an effect of force?

• Changing the color of an object

• Changing the shape of an object

• Moving an object

• Stopping a moving object

Which of these is an example of a contact force?

• Magnetic force

• Electrostatic force

• Kicking a ball

• Gravitational force

What type of force is involved when a magnet attracts a metal object?

• Contact force

• Magnetic force

• Gravitational force

• Electrostatic force

Which force is responsible for lightning?

• Contact force

• Magnetic force

• Electrostatic force

• Gravitational force

Which of the following is a non-contact force?

• Opening a door

• Gravitational force

• Dribbling a tennis ball

• Pressing a button

What is an example of a force that does not require contact between objects?

• Kicking a ball

• Opening a door

• Pressing a button

• Magnetic force

What keeps the planets in orbit around the sun?

• Contact force

• Magnetic force

• Electrostatic force

• Gravitational force

What happens to water from a mountain due to gravity?

• It floats upwards

• It evaporates

• It falls down

• It stays still

Which force is responsible for the moon's movement around the Earth?

• Gravitational force

• Electrostatic force

• Magnetic force

• Contact force