Chapter 4: Science 7 - Work, Power, & Simple Machines

Open Ended

Define work and power.

Match

Match the following

• Work

• Power

• Mechanical Advantage

transfer of energy by force displacing

amount of energy converted per unit time

ratio of a force applied and force made

• transfer of energy by force displacing

• amount of energy converted per unit time

• ratio of a force applied and force made

Open Ended

Name and describe 2 simple machines.

Match

Match the following

• Screw

• Wedge

• Lever

• Pulley

• Inclined Plane

rotational motion to linear motion

triangle; force applied to wide part

rigid bar that rotates around a fixed point

rope or chain wrapped around a wheel

flat surface with one end higher than the other

• rotational motion to linear motion

• triangle; force applied to wide part

• rigid bar that rotates around a fixed point

• rope or chain wrapped around a wheel

• flat surface with one end higher than the other