General Physics 1,1 Length And Time Flashcards
1
Q
How is length measured?
A
Using a ruler.
2
Q
What is the unit of length?
A
Metres, m.
3
Q
How can you find the volume of a regular solid?
A
By calculation.
• Use a ruler to measure dimensions
• Use an appropriate equation to calculate volume
4
Q
How can you find the volume of an irregular solid?
A
By submersion.
• Fill a measuring cylinder with water and read initial volume
• Submerge the object (hold down if necessary) and measure final volume
• The change in volume = volume of object
5
Q
How can time be measured?
A
Using clocks or stopwatches.
6
Q
How can the accuracy of measurements be increased?
A
By taking multiple measurements and calculating an average.
7
Q
How can very small distances be measured?
A
Using a micrometer screw gauge.
