How many mm are in 1 cm?
10
How many mm in 1m?
1000
How many cm in 1m?
100
How many cm squared in 1m squared
10000
How many cm cubed in 1m cubed?
1000000
What is the standard unit of length, area, and volume?
Metres, metre squared, metre cubed
How do you find density?
Density = mass
———-
Volume
What is the triangle for density, mass and volume?
M
——————
p x V
What are the standard units for density?
Kg and m cubed, giving a standard unit for density being kg/m cubed
Sometimes it’s easier to use g and cm cubed, so an alternative unit is g/cm cubed
What are some units for mass?
Mg, g, kg, tonnes
What is the standard unit for force?
N
What happens to objects with mass?
They are attracted to each other
How do you increase the attraction between two objects?
The greater the mass and the closer they are together
What is the gravitational force that pulls you down towards the centre of the earth?
Weight
What is mass?
How much mass an object contains
Does mass change?
No
Does weight change?
Yes
How do you find weight?
W=mg (weight = mass x gravitational field strength