The video tutorial explains the concept of force, measured in Newtons, as a push or pull on an object due to interaction with another object. It distinguishes between contact and non-contact forces. Contact forces require physical touch, such as friction and tension, while non-contact forces, like gravity and magnetism, act over a distance. The video also highlights that forces are vector quantities, having both magnitude and direction.

What is a force described as in physics?

• A measure of mass

• A form of acceleration

• A push or pull on an object

• A type of energy

Which of the following is a characteristic of vector quantities?

• They have both magnitude and direction

• They have only direction

• They have neither magnitude nor direction

• They have only magnitude

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

• Electrostatic force

• Friction

• Magnetic force

• Gravitational force

What is the normal contact force also known as?

• Gravitational force

• Reaction force

• Electrostatic force

• Magnetic force

Which force can act over a distance without physical contact?

• Tension

• Gravitational force

• Air resistance

• Friction