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Terminal Velocity OALH

Last updated almost 5 years ago
29 questions
Do Now
1

Calculate the acceleration between 0s and 4s.

1

Describe the motion of the object between 4s and 8s.

1

Give the equation for calculating average acceleration.

1

Define precise

1

Convert 345 mm to m.

1

Challenge: Explain how to find the centre of mass of an irregular object.

Key Knowledge LCWC
1

State what happens to an object in free fall initially.

1

State what happens to an object in free fall initially.

1

Explain what happens to the velocity of a falling object as it accelerates.

1

Explain what happens to the velocity of a falling object as it accelerates.

1

What is the relationship between air resistance and terminal velocity?

1

What is the relationship between air resistance and terminal velocity?

1

Define terminal velocity.

1

Define terminal velocity.

1

Describe the purpose of a parachute.

1

Describe the purpose of a parachute.

Recall Quiz
1

Which of the following is not a terminal velocity from the graph

1

What has happened to a skydiver at Point B?

1

As the velocity of a falling object increases, the air resistance on that object…

1

A parachute protects a skydiver by…

I DO
1

Explain what is happening to a skydiver at point A

We Do
1

Explain what is happening to a skydiver at 30 seconds.

You Do
1

Explain what is happening to a skydiver from point B to point D.

Extended Writing Task – You Do
1

Describe and explain the change in motion as a sky diver falls from a plane and opens her parachute. [6 marks]

Plenary
1

1.When an object falls through a fluid it will initially decelerate.

1

1.When an object is accelerating the downwards force from gravity must be greater than the upwards force from the fluid.

1

1.When these forces are balanced the object will stop moving.

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1.When the resultant force is zero the object will fall at a steady speed. This is called terminal velocity.

1

1.A parachute will make a skydiver move upwards in the air.