Work, Power and Simple Machines

What is the unit used to measure Power?

• Joule
• Watt
• Newton
• Pascal

Force X Distance = _______?

• Work
• Power
• Energy
• Force

units of force are

• newtons

• grams

• joules

• meters

units for work are

• newtons

• joules

• meters

• seconds

Which is not a simple machine?

• Wedge

• screw

• lever

• fulcrum

Which is not considered a simple machine?

• The pump

• The wheel & axle

• The wedge

• The screw

• The pulley

The mechanical advantage of a pulley system depends upon?

• The diameter of the pulley wheels

• The length of the rope

• The number of sections of rope

• The direction of the input force

A simple machine that consists a rigid bar that pivots on a fixed point

• lever

• pulley

• wheel and axle

• fulcrum

An axe is an example of a

• pulley

• inclined plane

• screw

• wedge

A seesaw is an example of a

• wedge

• lever

• inclined plane

• pulley