Force
friction
Net force
100

What is force?

Strength or energy as an attribute of physical action or movement.

100

What is sliding friction?

The friction between two bodies that are in sliding contact.

100

What is the unit for net force?

The net force is the vector sum of all forces acting on a body.


200

what type of force are there?

Gravitational forces, electric forces, magnetic forces, nuclear forces, frictional forces.

200

What is an example of static friction?

Static friction acts on objects when they are resting on a surface.

200

Can net force be negative?

The work done by net force can be negative, zero or positive.

300

What type of force is friction?

Contact force.

300

What are examples of friction in our daily life?

  • Driving of a a vehicle on a surface.
  • Applying brakes to stop a moving vehicle.
  • Skating.
  • Walking on the road.
  • Writing on notebook/ blackboard.
  • Flying of aeroplanes.
  • Drilling a nail into wall.
  • Sliding on a garden slide.
300

Can net force be equal to zero?

If the net force on an object is zero, then the object is in equilibrium.

400

What is an example of static force?

A Person Standing on the Ground 


400

What is a different way friction?

One solid object over another.

400

What is another word for net force?

Resultant force

500

What is an example of force rubbing?

Rubbing Hands

500

What causes a friction?

Molecular adhesion, surface roughness, and deformations.

500

What is net force formula?

 F = ma

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