Limiting of friction

Bearing frictions considered?

What is the difference between n1 & n2 ?

AIR RESISTANCE ON A FLYING AIRPLANE IS AN EXAMPLE OF WHAT TYPE OF FRICTION?

• DRY FRICTION

• ROLLING FRICTION

• FLUID FRICTION

• STATIC FRICTION

• NONE OF THE ABOVE

What is the Newton's 2nd Law of Motion?

• equal and opposite reations

• law of inertia

• law of gravity

• f = ma

The property of a body due to which it resists any change in its state of rest or motion is termed as

• force

• inertia

• momentum

• velocity

The coefficient of static friction is

• less than the coefficient of kinetic friction

• Greater than the coefficient of limiting friction

• Equal to coefficient of kinetic friction

• Equal to the tanjent of the angle of friction

What are the 2 types of friction discussed in the book?

• Static and Dynamic Friction
• Kinetic and Static Friction
• Kinetic and Dynamic Friction
• Dynamic and Moving Friction

What are 2 factors that determine the amount of friction between 2 objects?

• Force and roughness between surfaces
• hills and valleys and how smooth or rough the surface is
• Amount of force and amount of surface the comes in contact
• The force and the weight exerted on the surfaces

Force the opposes motion between 2 surfaces

• force
• Newton
• friction
• net force

Which of the following is an example of transfer of energy by radiation?

• sun's energy reaching Earth

• air from a central heating system circulating through a house

• putting your bare feet on the cold linoleum floor

• changing physical state

  (like solid to liquid)