Chapter 4 Vocab Quiz

The capacity/ability to do work.

• Power

• Mechanical Advantage

• Energy

• Efficiency

P=W/t : A quantity that measures the rate at which work is done.

• Power

• Work

• Energy

• Efficiency

PE=mgh: The energy that an object has because of the position, shape or condition of the object.

• Potential Energy

• Kinetic Energy

• Mechanical Energy

• Energy

MA=RF/EF or ED/RD: A number that tells how many times a machine multiplies force.

• Mechanical Advantage

• Compound Machine

• Mechanical Energy

• Efficiency

W=Fd: The transfer of energy to a body by the application of force that causes the body to move in the direction of the force.

• Work

• Power

• Energy

• Efficiency

The sum of kinetic and potential energy in an object that is used to do work

• kinetic energy

• potential energy

• mechanical energy

• energy

KE=1/2mv^2: The energy of an object that is due the object’s motion.

• potential energy

• kinetic energy

• mechanical energy

• energy

One of the six basics types of machines, which are the basis for all other forms of machines.

• compound machine

• simple machine

• mechanical advantage

• work

A quantity, usually expressed as a percentage that measures the ratio of work output to work input.

• efficiency

• energy

• power

• work

A machine made of more than one simple machine.

• simple machine

• compound machine

• mechanical advantage

• work