# Laws Of Dry Friction! Trivia Questions Quiz

10 Questions  Settings  Dry Friction occurs on dry or rough surfaces and with the help of solid objects. It sometimes necessitates the action of humans to generate any type of motion. It is done when we move things around in our new apartment, it is also done in factories where boxes and objects are moved from one area to another. So, what do you know about the laws of dry friction? Take our quiz and find out now.

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• 1.
How can one define dry friction?
• A.

It's a force that opposes the relative lateral motion of 2 solid surfaces in contact

• B.

It's pressure between the relative lateral motion of 2 solid surfaces in contact

• C.

It's a force that mixes the relative lateral motion of 2 solid surfaces in contact

• D.

It's a force that joins the relative lateral motion of 2 solid surfaces in contact

• 2.
How many other frictions are there apart from dry friction?
• A.

4

• B.

5

• C.

6

• D.

7

• 3.
What happens when surfaces in contact move relative to each other?
• A.

The friction between the 2 surfaces converts kinetic energy into thermal energy

• B.

The friction between the 5 surfaces converts kinetic energy into thermal energy

• C.

The friction between the 3 surfaces converts kinetic energy into thermal energy

• D.

The friction between the 4 surfaces converts kinetic energy into thermal energy

• 4.
What causes dry friction?
• A.

It's a  combination of inter-surface adhesion, surface roughness, surface deformation, and surface contamination

• B.

It's a  combination of inter-surface adhesion

• C.

It's a  combination of surface roughness, and surface contamination

• D.

It's a  combination of inter-surface adhesion, and surface contamination

• 5.
What's the nature friction?
• A.

It's a visible force

• B.

It's a moving force

• C.

It's an ever changing force

• D.

It's a non-conservative force

• 6.
What is the meaning of non-conservative force?
• A.

It's when the total work done in moving a particle between 2 points is not dependent on the taken path

• B.

It's when the partial work done in moving a particle between 2 points is not dependent on the taken path

• C.

It's when the total work done in moving a particle between 3 points is not dependent on the taken path

• D.

It's when the total work done in moving a particle between 4 points is not dependent on the taken path

• 7.
What does it mean when friction between 2 surfaces converts kinetic energy into thermal energy?
• A.

It converts work to heat

• B.

It converts heat to work

• C.

It converts work to liquid

• D.

It converts solid to liquid

• 8.
What is mechanical energy?
• A.

It's solar energy

• B.

It's static energy

• C.

It's the sum of potential energy and kinetic energy

• D.

Its the multiplication of energy

• 9.
Why is friction important to cars?
• A.

Because cars rely on friction for changing direction

• B.

Because cars rely on friction for acceleration

• C.

Because cars rely on friction for acceleration, deceleration, and changing direction

• D.

Because cars rely on friction for deceleration, and changing direction

• 10.
What is the opposite of dry friction?
• A.

Fluid friction

• B.

Lubricated friction

• C.

Skin friction

• D.

Internal friction