Bernouilis Principle

Question 1

What does Bernoulli’s principle say about slow moving and fast moving air?

Answer 1

-Air which is moving fast will be at a low pressure

-air which is moving slow will be at high pressure

Question 2

Describe how a Bernoulli lift force is created for a javelin?

Answer 2

-the angle of attack that the javelin in threw, creates an aerofoil shape
-Air above the object or body travels further at a low pressure
- air below travels slowly at high pressure
- this creates a pressure difference- which is known as the Bernoulli lift force

Question 3

What is the effects of the Bernoulli lift principle?

Answer 3

• for total of met forces working, weight has less effect
• extends the horizontal distance travelled and extends javelin fligtht

Question 4

What is a positive of the Bernoulli principle?

Answer 4

Extends the flight path, which makes it more parabolic, therefore more asymmetrical

Question 5

What is meant by the angle of attack?

Answer 5

The mot favourable angle of release for a projectile to optimise the lift force due to Bernoulli principle