All form responses are stored in the Google Form, but can be stored in a Google Sheet if you prefer, for further analysis. Once in a Google Sheet, you can use any spreadsheet features to summarise your results e.g. charts, formulas, etc.

To view a summary of the form responses, click on the Responses tab along the top of the form.

When you view the summary of responses:

When you view individual responses:

To stop accepting responses for a form, click to the left of the Accepting responses button to disable it. 

To store the results in a spreadsheet:

You can now open the spreadsheet from your Google Drive and view the results. Each response will show in a new row, with the first column showing the date and time at which the form was submitted. 

Within the spreadsheet, you can quickly view the form or show a summary of responses. 

Click on the Form menu to view the following options:

After you have unlinked a spreadsheet from a form, the responses will still be stored in the form itself, and can be copied to another spreadsheet, or a sheet in the same spreadsheet, if required.