On the street, you probably would run the other way from this, especially if it was offered from a windowless van. However, "Fill this out and get a free iPhone" seems a bit more tempting.
This is called social engineering - the process of attempting to use deception to get your personal information.
This can happen via an email OR via a website.
If you KNOW something is spam or phishing, use google's reporting tools.
The most important step is to slow down. A lot of these scamming attempts are designed to make you act fast which might make you share information before realizing you shouldn't.
Research the facts - always be suspicious of unsolicited messages. If it says it is from a company you do business with, perform an internet search to visit the company's real website and verify their real phone number.
Delete any requests for personal or financial information OR passwords - no legitimate business will request this type of information.
Reject requests for help or offers for help - no legitimate business will send an unsolicited offer of help. Requests for help from friends and family should be viewed skeptically, as email is unlikely to be the primary way they would reach out. Try and contact them through other means to verify the information.
Beware links - Links can be disguised to look like they are bringing you one place, but instead are bringing you to another
Email Hijacking is Common - scammers attempt to gain control of email accounts so that they can use the trust of the address against those in the contacts. Even if you know the person, be very careful about clicking links and downloads that you were not expecting.
Look for https:// - well designed websites that take in secure information are encrypted and would begin with https:// instead of just http://
Beware similar websites - many fonts make capital "i" and lower case "L" look identical: Il. Also, websites are often at misspelled addresses like epsn.com instead of espn.com
Watch out for catfishing - use reverse image search to see if the person you are talking to is who they say they are.