Lesson Objectives Circular Motion Keywords: centripetal force; centripetal acceleration; To know...

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To know what is meant by circular motion Grade C To describe centripetal acceleration Grade B To be able explain the factors which affect centripetal force Grade A

Transcript of Lesson Objectives Circular Motion Keywords: centripetal force; centripetal acceleration; To know...

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect

centripetal forceGrade A

How do you stay in?

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

What is the difference between SPEED and VELOCITY?

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

What is the difference between SPEED and VELOCITY?

VELOCITY is an objects SPEED in a GIVEN DIRECTION.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

What is happening (at constant speed):

- The velocity is directed to the tangent of the circle.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

What is happening:

- The velocity changes direction as it moves around.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

What is happening:

- The change in velocity is towards the centre of the circle.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

If the object is constantly changing its velocity, therefore it is said to be ACCELERATING towards the centre of the circle – called centripetal acceleration.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

Therefore, resultant force is towards the centre of the circle – called centripetal force.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

Other examples:- Car going around a roundabout- Satellite going around the Earth- Hammer thrower at the Olympics

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

Other examples:- Car going around a roundabout –

centripetal force is due to friction between tyres and road.

- Satellite going around the Earth. - Hammer thrower at the Olympics.- Fairground ride centripetal force at

the top is due to weight.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

What affects the centripetal force?

- Speed = faster the object, the greater the centripetal force needed.

- Radius = centripetal force increases as radius decreases. Harder to keep an object in a circle with a SMALL radius.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

PAST PAPER QUESTIONS

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect centripetal force

Grade A

Are you now able to….

I still feel unsure. I need some more help to understand.

I feel ok. I need to do some more work to check my understanding.

I am happy and feel I understand and can explain the main points.

To know what is meant by circular motion

Grade C

To describe centripetal acceleration

Grade B

To be able explain the factors which affect

centripetal forceGrade A