Mass,Density And Weight

Question 1

Gravity on earth is equal to?

Answer 1

Mass times ten

Question 2

What is the equation for weight?

Answer 2

W=mg

Question 3

What is the alternate unit for g?

Answer 3

g = 10N/Kg or 10m/s2

Question 4

Density is defined as and its units are:

Answer 4

Density = mass
Volume

g/cm3
Kg/m3

Question 5

Volume =

Answer 5

Pie r2h

Question 6

How do you measure the density of irregular shaped objects?

Answer 6

• measure known volume of H2O in graduated
• put in object, measure new volume
• subtract original volume from new volume
• measure the mass
• calculate D = M/V
• repeat

Question 7

What is the arrangement of particles in:
Solids
Liquids
Gases

Answer 7

They have various degrees of freedom.
Solids are very closely packed together
Liquids are closely packed together
Gases have many degrees of freedom.

Question 8

What is the equation for pressure?

Answer 8

Pressure = Force

Area

Question 9

Give two examples of a force acting on a large area with small pressure.

Answer 9

Skis

Elephant

Question 10

Give two examples of a force acting on a small area creating a large pressure

Answer 10

Stilettos
Boots
Knife
Tines on a fork