Physics for Kids. 1  Work is a scalar quantity, not a vector quantity. This means that, unlike force and velocity, it has no direction, only a magnitude. 2  Another unit of work is the foot-pound. One foot-pound is equal to 1.35581795 joules. 3  The joule is also used as the standard unit of measure for energy.
IP spoofing is a technique used to gain unauthorized access to computers, whereby the intruder sends a message to a computer with an IP address indicating that the message is coming from a trusted port.
To make phishing messages look like they are genuinely from a well-known company, they include logos and other identifying information taken directly from that companyâs website. The malicious links within the body of the message are designed to make it appear that they go to the spoofed organization. The use of subdomains and misspelled URLs (typosquatting) are common tricks, as is homograph spoofing -- URLs created using different logical characters to read exactly like a trusted domain.