Chapter 34 - Measurement Flashcards
How do scientists collect evidence?
They observe and use information collected by other scientists.
What does physics deal with?
The science of how and why things behave as they do.
What how finding out how and why things work done?
It has led to many discoveries and inventions.
How do we observe things?
With our senses and measuring instruments.
Name some measuring equipment
- callipers
- vernier callipers
- opisometer
- trundle wheel
- metre stick
- ruler
- measuring tape
What is mass?
The amount of matter/stuff in an object.
What instrument is used to weigh mass, and what unit is used?
It is measured in grams/kilograms/milligrams on a electronic/mass balance.
How is time measured?
Using a stopwatch or stopclock.
What is temperature?
How hot or cold something is.
What is used to measure temperature?
A thermometer or a temperature sensor and data-logging equipment.
What is the melting point of ice?
0 degrees Celsius
What is it boiling point of water?
100 degrees Celsius.
What is normal body temperature?
37 degrees Celsius.
What are the Standard International units?
Length: Metre
Mass: Kilogram
Time: Second
Temperature: Degree Celsius
