# Friction: Science Trivia Facts! Quiz

10 Questions | Total Attempts: 388  Settings  We generate friction almost every day when you think about it because judging by its definition, friction is the force resisting the relative motion of solid surfaces, or any other types of surfaces like fluid layers, or when material elements sliding against each other. So, it can occur countless times during the day. But can you define it in its entirety? Take our quiz and find out now.

• 1.
How many types of friction are there in total?
• A.

3

• B.

4

• C.

6

• D.

5

• 2.
What the nature of friction?
• A.

It's a conservative force

• B.

It's motion in action

• C.

It's a non-conservative force

• D.

It's a moving force

• 3.
What is dry friction?
• A.

It's a force that opposes the relative lateral motion of 5 solid surfaces in contact

• B.

It's a force that opposes the relative lateral motion of 4 solid surfaces in contact

• C.

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

• D.

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

• 4.
What is skin friction?
• A.

It's a component of drag the force resisting the motion of a fluid across the surface of a body

• B.

It's a component the force resisting the motion of a fluid across the surface of a body

• C.

It's a component of drag resisting the motion of a fluid across the surface of a body

• D.

It's a component of drag the force resisting the motion of a liquid across the surface of a body

• 5.
What causes dry friction?
• A.

A combination of inter-surface adhesion and surface contamination

• B.

A combination of inter-surface adhesion and surface roughness

• C.

A combination of inter-surface adhesion, surface roughness, surface deformation, and surface contamination

• D.

A combination of surface roughness, surface deformation, and surface contamination

• 6.
What is mechanical energy?
• A.

It's kinetic energy

• B.

It's potential energy

• C.

It's the sum of potential energy and kinetic energy

• D.

It's the sum of natural energy and kinetic energy

• 7.
Who were the first ones to study friction?
• A.

The Romans

• B.

The Greeks

• C.

The phenicians

• D.

The British

• 8.
When were the classic laws of sliding discovered?
• A.

In 1510

• B.

In 1505

• C.

In 1500

• D.

In 1493

• 9.
How many factors on friction did Coulomb Investigate?
• A.

4

• B.

5

• C.

6

• D.

7

• 10.
When was the atomic force microscope created?
• A.

In 1986

• B.

In 1988

• C.

In 1990

• D.

In 1991

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