Fricción – Clip

The video explains the concept of water resistance and how birds use it to slow down by extending their legs while perching in water.

What is the term used to describe the force that opposes the motion of objects through water?

• Air resistance

• Gravity

• Friction

• Water resistance

How do birds adjust their posture when they are in water to increase resistance?

• They tuck their wings in

• They spread their wings wide

• They dive deeper

• They stick their legs out

What is the primary reason birds extend their legs while perching in water?

• To balance themselves

• To increase water resistance

• To catch fish

• To cool down

What happens to birds when they increase water resistance by extending their legs?

• They dive

• They float

• They slow down

• They speed up

Which of the following is NOT a result of increased water resistance for birds?

• Faster movement

• Better control

• Increased buoyancy

• Slowing down