Density

Question 1

Archimedes was a Greek scientist. he is famous for shouting ‘ahoy’ and running through the streets naked after we notice how his bath overflow as he stepped into it.

Which word fits better than ‘ahoy!’?
‘Eureka’
‘Heavens’
‘Blast’

Answer 1

‘Eureka’

Question 2

The equation for density:

Density = ____ divided by volume

Answer 2

Mass 

Question 3

When do objects float?

When their weight is greater than their mass
When the mass is greater than the upthrust of the water/air
When ghosts interfere
When their weight is less than the upthrust of the water for it/air

Answer 3

When their weight is less than upthrust of the water/air

Question 4

If mass is 10 kg and volume is 2.5 m³, what is the density of the object?

4 kg/m³
2.5 kg/m³
25 kg/m³
10 kg/m³

Answer 4

4 kg/m³

Question 5

When do objects sink?

When their weight is greater than the upthrust of the water/air
When their weight is equal to the upthrust of the water/air
When the mass is greater than the upthrust of the water/air
When the density is greater than the upthrust of the water

Answer 5

When they weight is greater than the upthrust of the water/air

Question 6

If an object is able to float, it is described as _______.A floating object’s weight will be less than or equal to that of the upthrust of the water.

Answer 6

Buoyant