How Do Ski Jumpers Fly Like Birds?

Long ski jumpers fly more than how many yards in the air?

• 100 yards

• 150 yards

• 200 yards

• 250 yards

What force must long ski jumpers reduce to soar in the air?

• Lift

• Gravity

• Drag

• Speed

Gravity is the force that ______ objects down to the surface of Earth.

• A) pushes

• B) pulls

• C) lifts

• D) rotates

Skiers change their body position to maximize and minimize certain ______.

• speeds

• forces

• distances

• weights

What do skiers do to increase surface area?

• Bend knees

• Separate skis

• Lean forward

• Tuck arms

What happens when more upward air pressure acts on the skis?

• Decrease in speed

• Increase in lift

• Increase in drag

• Decrease in gravity

The faster a skier travels, the more ______ he will gain.

• lift

• drag

• gravity

• weight

What is drag?

• A force that pushes forward

• A force that opposes motion

• A force that lifts upward

• A force that pulls downward.

How does gravity affect a ski jumper?

• It helps them fly higher

• It pulls them downwards

• It makes them go faster

• It has no effect.

How does a skier position his body while going down a ramp?

• Leaning forward

• Leaning backward

• Standing straight

• Sitting down