Asma Chemistry

A force spread over a large area means low pressure

• true

• false

A force concentrated on a small area means high pressure

• true

• false

exerts high pressure

• high heeled shoes

• sharp knives

• ice skates

• needles

• snowboards

exerts low pressure

• high heeled shoes

• skis

• Palm

• ice skates

• snowboards

The units of pressure used in calculations are

• newtons

• kilograms

• newtons per metre cubed

• newtons per metre

• newtons per metre squared

Which of the following unit could never be used to measure pressure.

• Pascals

• newtons per centimetre squared

• kilograms per metre squared

• newtons per millimetre squared

• kilonewtons per metre squared

Pressure is defined as

• mass / area

• force /area

• kilogram /area

• newton / area

• force / mass

Which creates the biggest pressure on the ground?

• A small child with small feet

• A larger child with bigger feet

• An even larger a adult with even bigger feet

• A small adult with massive feet

• absolutely a massive adult tiny feet

Camels have large feet because.

• It helps them sink into the sand

• It spreads their weight over a larger area so there is less pressure and they are less likely to sink

• It helps keep them cool

• Camels prefer camels with large feet

• They are just lucky