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Flashcards in weight, mass, density etc Deck (19):
1

What is weight

The force of gravity pulling on a mass - measure in Newton’s

2

What is mass

Mass is the amount of substance - measure in kilograms/grams

3

how do u find what the weight of something is

mass x gravity

4

What is gravity

Force of attraction between masses. It is a property of mass, the bigger the mass the bigger the gravity

5

What is gravity on earth

9.81 Newton’s

6

How do you find the density of an object

Mass divided by volume

7

What happens to water when it is frozen

Expands by 10%

8

What temperature is water at its densest

4°C

9

What is the RD for polythene and what happens to it in water

0.90
Float

10

What is the RD of water

1

11

What is the RD of PVCu and what happens to it in water

1.28
Sink

12

What is the RD of aluminium and what happens to it in water

2.70
Sink

13

What is the RD of cast iron and what happens to it in water

7.90
Sink

14

What is the RD of copper and what happens to it in water

8.90
Sink

15

What is the RD of natural gas and what happens to it

0.6
Rise

16

What is the RD of air

1

17

What is the RD of propane and what happens to it

1.5
Sink

18

What is the RD of butane and what happens to it

2
Sink

19

how do u work out specific heat capacity

specific heat value x kg x temp rise