Looking to create average rating over daily, weekly, monthly, MTD, quarterly, QTD, yearly, and YTD

I am very new to SQL Server and I am attempting to create span criteria for surveys about our company which will spit out an average depending on the date span given. The detail from the surveys include a survey start date which can be utilized. Here is the sql from the initial table and query building upon it without the date criteria/function:

snippet from surveyTb:

etc...

Query without any time criteria:

SELECT 'Company-Avg Overall Service Rating-ExistingPt' AS ID
 , ROUND(AVG(CAST(s.SurveyQ1 AS float)),2) AS DataPoint
FROM [dbo].[SurveyTb] AS s

UNION ALL

SELECT 'Company-Avg Most Recent Transaction Rating-ExistingPt' AS ID
 , ROUND(AVG(CAST(s.SurveyQ5 AS float)),2)  AS DataPoint
FROM [dbo].[SurveyTb] AS s

UNION ALL

SELECT 'Company-Avg Recommendation of Service Rating-ExistingPt' AS ID
 , ROUND(AVG(CAST(s.SurveyQ9 AS float)),2) AS DataPoint
FROM [dbo].[SurveyTb] AS s

RESULT: