Skateboarding Equipment Quiz

What is the purpose of grip tape on a skateboard?

• To increase friction

• To decrease speed

• To decrease friction

• To increase speed

What is the coefficient of friction (μ) between rubber and grip tape?

• 1.0

• 0.7

• 0.5

• 0.3

Why is the ideal size of street skateboarding wheels between 49mm-54mm?

• To increase pressure

• To decrease stability

• To decrease pressure

• To increase stability

What type of friction do wheels possess?

• Fluid friction

• Static friction

• Kinetic friction

• Rolling friction

What texture is the grip-tape

• It's like sandpaper

• It's very smooth

• It's hard

• None of the above

Answer explanation

Grip tape is the sandpaper-textured thin sheet sticked onto your skateboard.

When the skateboard moves on a surface, it has_

Answer explanation

When a skateboard moves on a surface, it has friction (specifically, rolling friction).

Draw a skateboard wheel

Answer explanation

Skateboard wheels come in different sizes! The classic skateboard wheel looks like this!

What are the three types of friction we learnt today?
(there are three answers!)

• Kinetic Friction

• Physical Friction

• Static Friction

• Rolling Friction

Answer explanation

Static friction is the result of applying a force insufficient to overcome the frictional force, which stops an object from moving. It acts parallel to the surfaces, like the force keeping a book on a table.

When something is moving on a surface or on another object, there is kinetic friction.

When an object that has wheels/or circular object rolls over a surface, there is rolling friction.

Think of any word to describe skateboarding after you've heard this lesson (there is no correct answer! please type your true thoughts!)

Have you been enjoying this lesson this far? (there is no correct answer! please choose base on what you really think!)

• Very much!

• Yes

• Kind of

• Not so much