Sort these situations into those where the pressure is high and those where

the pressure is low.

banging nails into wood feet of camels snow shoes feet of wading birds

blades of scissors wide straps on a rucksack blade of a knife

banging nails into wood: High

feet of camels : low

snow shoes : low

feet of wading birds: low

blades of scissors : high

wide straps on a rucksack: low

blade of a knife: high

Explanation:

From the definition of pressure:

Pressure is the ratio of force to area.

Pressure is high if area is small and vice versa. Assuming that the force is the same.

banging nails into wood: High

feet of camels : low

snow shoes : low

feet of wading birds: low

blades of scissors : high

wide straps on a rucksack: low

blade of a knife: high

the part of the wave he is travelling on is the crest

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.