DO NOW Energy, Work, and Simple Machines

Work is positive.

• Sometimes true

• Always true

• Never true

VOCABULARY: The unit for work, named after a 19th-century Physicist and which is equal to a Newton-meter.

VOCABULARY: The unit for kinetic energy which is equivalent to a kg-m²/s².

It states that when work is done on an object, the result is a change in kinetic energy.

• impulse-momentum theorem

• work-energy theorem

• law of conservation of energy

• law of conservation of momentum

VOCABULARY: The unit for power which is equivalent to a Joule per second.

VOCABULARY: It eases the load by changing either the magnitude or the direction of a force.

VOCABULARY: The force exerted by a person on a machine is called the...