Birds eat a lot

Classical Mechanics Level 1

Which type of bird will consume more calories in a day:

75 kg Ostriches or 75kg of parrots?

P.S. 75 kg does not mean that the ostrich or the parrot alone weigh 75kg. No. What it means that a flock or group of ostriches or parrots which together weigh 75kg

Ostriches Parrots Equal

Kumudesh Ghosh by Kumudesh Ghosh , 14, India

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5 solutions

Parrots are birds. Ostriches too are birds. But parrots are smaller.

That's where the factor of surface area comes.

Because parrots are smaller than ostriches, they definitely have a higher surface area so more heat is lost.

Therefore, 75kg of parrots will eat more calories in a day.

Further explanation for people who don't understand

Try this, take a rectangle and cut it in half, the big rectangle will have a lower perimeter than the summed perimeter of the two smaller rectangles/squares

Same thing works for three dimensions

13 Helpful 2 Interesting 6 Brilliant 2 Confused

I thought this was theoretical. you didn't say a flock or group. I thought they were 2 individuals - an as such, unless types of behavior come into play, would be the same ,

Georgio Vuolde - 1 year ago

How do you know that the parrots have a higher surface area?

Ananya Raghu and Anisha Raghu - 1 year ago

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Try this, take a rectangle and cut it in half, the big rectangle will have a lower perimeter than the summed perimeter of the two smaller rectangles/squares

Same thing works for three dimensions

A Former Brilliant Member - 1 year ago

How do you know they don't have higher surface area LOL

A Former Brilliant Member - 10 months, 2 weeks ago

This theory is not absolute ...... thumbs down

Molly McGovern - 11 months, 1 week ago
Deva Craig
Jun 8, 2020

I thought of the flock of parrots as 75 small 1x1x1 cubes, and thr flock is of ostriches as 3x3x5 rectangular prisms. This means that approximately two ostriches are needed to have the same mass, as 3x3x5 is 45. The surface area of the 75 cubes would be 450 square feet, and the surface area of the two ostriches would be 4(2(3x5) + 3x3) = 156. Because the flock of parrots has more surface area, they will lose heat more quickly than the ostriches. So they need more calories.

4 Helpful 1 Interesting 2 Brilliant 0 Confused

The question asks if 75 75 kg worth of Ostriches or 75 75 kg worth of parrots will consume more calories in a day. \\ The flock of parrots has a greater surface area than the Ostriches because the parrots are smaller but more numerous, hence the parrots will experience more heat loss. \\ To replenish their energy lost, the birds must consume food, and because the parrots lose more heat,

The parrots consume more calories in a day

2 Helpful 1 Interesting 1 Brilliant 0 Confused
Guillermo Robles
Jun 8, 2020

An ostrich is big like a human and a parrot is small like a parakeet.

2 Helpful 0 Interesting 1 Brilliant 0 Confused
Owen Chen
Jun 8, 2020

It is very simple. Parrots are smaller than ostriches. Therefore they lose heat faster and will have to eat more calories

1 Helpful 1 Interesting 0 Brilliant 0 Confused

I based my answer on the aspect of physical activity between the two birds. Which bird burns up their food they've consumed faster based on their physical activity.

Ellen Newman - 1 year ago

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