Friction and Air Resistance

How does increasing an object's speed typically affect air resistance?

• Air resistance decreases

• Air resistance stays the same

• Air resistance increases

• Air resistance disappears completely

What is the main purpose of a parachute?

• To eliminate air resistance

• To increase air resistance and slow descent

• To create friction with the ground

• To make the jumper fall faster

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How does friction affect the motion of a sliding object?

• It makes the object move faster

• It has no effect on the object's motion

• It slows the object down

• It makes the object change direction randomly

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Which surface would likely create the MOST friction for a sliding box?

• Ice
  

• Polished marble

• Rough concrete
  

• Waxed floor

In everyday life, why do we sometimes WANT friction?

• To make objects float in the air

• To help us grip and hold onto things

• To make everything super slippery

• To increase air resistance

How can air resistance be reduced on a car?

• By making the car heavier

• By driving the car slower

• By making the car's shape more streamlined

• By increasing the size of the car

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Which shape experiences the least air resistance?

• A flat surface

• A cube

• A sphere

• A parachute

Air resistance is a type of friction.

• True

• False

Friction is __________.

• Only when 2 things rub together.

• An example of gravity.

• When the planets revolve around the sun.

• A force that opposes motion of an object.

TRUE or FALSE if you push a box across a surface like rough wood with a lot friction, it will NEVER stop

• TRUE, as long as it doesn't run into something it will keep going and going and going

• FALSE, it will stop very quickly

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