Understanding Projectiles

The video introduces the concept of projectiles, using sports examples like discus and basketball. It explains the factors affecting the horizontal distance a projectile travels: height, speed, and angle of release. The video also covers parabolic and nonparabolic flight paths, detailing how forces like gravity and air resistance influence these paths. Key forces acting on projectiles include vertical and horizontal components, weight, and air resistance.

What is a projectile in the context of sports and fitness?

• An object that sinks in water

• An object that moves on the ground

• An object that is projected into the air

• An object that remains stationary

Which of the following is NOT a factor affecting the horizontal distance a projectile travels?

• Speed of release

• Color of the projectile

• Angle of release

• Height of release

How does the height of release affect the distance a projectile travels?

• Height of release only affects vertical distance

• Higher release height increases distance

• Higher release height decreases distance

• Height of release has no effect

What shape does a projectile follow in a parabolic flight?

• Circle

• Zigzag

• Straight line

• Parabola

What happens to the vertical forces acting on a projectile at the top of its flight?

• They increase

• They remain constant

• They become zero

• They reverse direction

Which force is always acting downwards on a projectile?

• Air resistance

• Weight

• Horizontal force

• Lift

What is the effect of air resistance on a projectile?

• It has no effect

• It increases the speed of the projectile

• It pushes the projectile forward

• It pushes back against the projectile

Which of the following objects is likely to follow a non-parabolic flight?

• Golf ball

• Basketball

• Baseball

• Football

What feature of a golf ball increases air resistance?

• Its weight

• Its color

• Its dimples

• Its size

Why does a shuttlecock not follow a typical parabolic flight?

• Because of its speed

• Because of its feathers

• Because of its weight

• Because of its size