Phys Science Unit 1 test

What is a granduated cylinder used for?

Measuring precise amounts of liquid, usually milliliters

What is a larger beaker used for?

Bulk liquid handling, large scale chemical mixing

What is an Erlenmeyer flask used for ?

mix, heat, and store liquid safely without splashing

What is a weigh boat used for?

Used to protect the scale and contain any chemicals you are measuring

What is Accuracy?

How close a measurement is to a result

What is precision?

How close the repeated measurements are to eachother

SI unit for length

Meters

SI unit for mass

Kilogram

SI unit for time

Seconds

SI unit for temperature

Kelvin

How do you find the mean?

Add up all the units, then divide them by the amount of them

How to convert Kevin to Celsius?

C=K -273.15

How to convert Fahrenheit to Kelvin?

K=F + 459.67

What is an experimental design?

When the goal is to understand how the world works

What is a technological design?

When the goal is about engineering, or a practical solution to a problem

What is a scientific law?

Describes what happens in nature under specific conditions

What is a theory?

A claim that explains why or how specific things happen in nature

What is included in an experimental design outline ?

IV , DV , experimental group, control group, and constants

Qualitative Data

Data based on words

Quantitative Data

Data based on numbers