Friction in Sport – Question & Answer Sheet (Bold Format)

Friction is:

• the force that opposes motion between two surfaces in contact

• the force that attracts objects towards each other

• the energy stored in moving objects

• the tendency of objects to remain at rest

Friction affects movement in sports by:

• slowing down or stopping motion between surfaces

• increasing the speed of athletes

• eliminating the need for grip

• making surfaces completely smooth

The coefficient of friction is:

• the ratio of the force of friction to the normal force

• the product of mass and acceleration

• the force required to move an object

• the distance an object travels before stopping

The coefficient of friction influences performance in sport by:

• affecting grip and movement efficiency

• determining the color of sports equipment

• increasing the size of the playing field

• reducing the need for physical training

5. Static friction is:

• the force that resists the initiation of sliding motion between two surfaces

• the force that accelerates objects downward

• the force that acts only when objects are moving

• the force that acts at a distance without contact

6. One example of static friction in sport is:

• A football player standing still on the field before starting to run.

• A swimmer gliding through water.

• A cyclist pedaling uphill.

• A basketball rolling across the court.

Sliding friction is defined as:

• the force that opposes the motion of two surfaces sliding past each other

• the force that acts on objects at rest

• the force that helps objects move faster

• the force that acts only in liquids

One example of sliding friction in sport is:

• A football sliding on the ground

• A basketball bouncing on the court

• A swimmer moving through water

• A runner sprinting on a track

Rolling friction is:

• the force that resists the motion of a rolling object on a surface

• the force that resists the motion of an object through a fluid

• the force that resists the motion of an object sliding on a surface

• the force that attracts two objects toward each other

10. Rolling friction affects equipment or movement in sport by:

• Reducing the effort needed to move objects

• Increasing the speed of wind

• Making surfaces slippery

• Causing objects to float