The highs and lows of the forces around us

QUESTION 1

Possibly the weakest (non-zero) estimate of a force is the gravitational force between one proton and one electron in a ________ ____. Fill in the blanks. the sunlight incident on the earth exerts a collective force of 570 million newtons. The resulting pressure on the planet is called the radiation pressure. Some spacecraft are fitted with _____ _____ that use radiation pressure from the sun to move in orbit or space. Fill in the blanks.

QUESTION 5

Eight-thousand newton -- this is roughly the amount of force weight lifters achieve during a _____ and ____ lift. Fill in the blanks. 1. Lowest temperature to which a surface can be evaporatively cooled – 2. Thermometer reading when exposed to sunlight – 3. Air’s capacity for moisture adjusted for temperature – 4. Temperature at which air is 100% saturated with moisture – 5. Index that denotes harm caused by sunlight –

Visual:

First contact: Nishant Kumar | K.N. Viswanathan

1. Protein fibres in skin that break down over time, resulting in wrinkles –

2. Term for age-related condition characterised by decrease in brain volume, cognitive function –

3. Hormone produced less with age, leading to fatigue and weight gain –

4. Vitamin associated with healthy skin, vision, immune function – 5. Mineral associated with brain health, contributes to oxidative stress when in excess –

Visual:

First contact: K.N. Viswanathan

Visual: At a distance of around 165 km, the eruption of this volcano in the late 19th century produced almost 8,000 newton per square meter of sound pressure. Name it.