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.
Microsoft Office email SPOOF. This is a warning about an apparent PHISHING attempt to get information or possible malware infection attempt by spoofing a Microsoft Office email. This example shows how well crafted a spoof email can be.