Flight

Which one of the following factors effects the horizontal distance a projectile travels?

• Velocity at release
• Angle of release
• Height at which released
• All of the above

If a projectile is released on ground higher than where it is going to land, what is the optimum angle of release?

• 45 degrees
• Above 45 degrees
• Below 45 degrees
• None of the above

If a projectile is released lower than where it is going to land, what is the optimum angle of release?

• 45 degrees
• Above 45 degrees
• Below 45 degrees
• None of the above

What are the characteristics of projectiles that travel with a path close to a true parabola?

• Small weight force and air resistance
• Oval in shape and light
• Spherical in shape and large air resistance
• Large weight force and small air resistance

Projectiles that have a distorted parabolic flight path include which of the following?

• Objects travelling at high speeds
• Objects that have a large cross-sectional area
• Objects that do not have a smooth surface
• All of the above

When looking at the Bernoulli principle, fast air flow causes what level of pressure?

• High
• Low
• Medium
• No change

You only talk about the Bernoulli principle when talking about an object that is what shaped?

• Circular
• Round
• Not round
• Spherical 

Top spin causes a ball to do what when it is in flight?

• Ball appears to float, increases distances travelled
• Ball deviates to the left
• Ball deviates to the right
• Ball dips, decreases distances travelled

Back spin causes a ball to do what when it is in flight?

• Ball appears to float, increases distances travelled
• Ball deviates to the left
• Ball deviates to the right
• Ball dips, decreases distances travelled

A hook is when a ball to does what when it is in flight?

• Ball appears to float, increases distances travelled
• Ball deviates to the left
• Ball deviates to the right
• Ball dips, decreases distances travelled