Circular Motion Flashcards Preview

A2 Physics > Circular Motion > Flashcards

Flashcards in Circular Motion Deck (11)
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1

How is arc length calculated?

s = rθ

2

How is angular displacement calculated?

θ = ωt

3

How is the linear speed of a point calculated?

v = rω

4

How is the time period calculated?

T = 2π/ω

5

How is angular velocity calculated in terms of frequency?

ω = 2πf

6

What is the unit of angular velocity?

rads^1

7

How is acceleration calculates?

a = v^2/r = rω^2

8

What direction does the acceleration of an object in circular motion act in?

Towards the centre

9

How is centripetal force calculated?

F= mv^2/r = mrω^2

10

Why does centripetal force not do any work?

The force acts perpendicularly to the velocity.

11

When is the tension of a string at its minimum?

At the top of the circle