Test 5: Measurement Flashcards
What system of measurement do we use
We use the Metric System of Measurement (SI)
Why can ships Float in Water
Ships are hollow and filled with air and the average density of the ship is less then 1.0gcm~3
What is density?
It is the quantity of something per unit volume,unit length or unit area
Define volume
space occupied within the boundaries of an object in three-dimensional space
Define mass
Anything that occupies space
Define the term velocity
The velocity of an object tells you the speed at which it is travelling and the direction in which it is travelling.
Define the term acceleration
Acceleration is about the rate of change in Velocity
What is the unit that is used for density
g cm-3.
How do you measure mass
Using am electronic balance
How do you get acceleration?
Change of velocity divided by time taken
What instrument measured strength?
The dynamometer
What is the unit of acceleration
m/s2
