Unit 2 Work and Simple Machines Quiz

________________ is done whenever a force moves an object a distance.

• Load

• Friction

• Force

• Work

How can simple machines make work easier?

• by decreasing the force needed to complete the task

• by increasing the friction between the machine and the object

• by adding more work on the object than originally applied

• by removing the force of gravity on the object

A doorknob is an example of a _______.

• wheel and axle

• inclined plane

• pulley

• wedge

Which type simple machine would the base of a light bulb be?

• screw
• wedge
• wheel and axle
• pulley

The fixed point around which a lever rotates is know as the

• wheel.

• fulcrum.

• input force.

• output force.

A simple machine that splits an object apart is a _______.

• inclined plane

• fulcrum

• wedge

• lever

A ramp is an example of a(n) _______.

• inclined plane

• fulcrum

• force

• lever

Two inclined planes together that helps push things apart.

• pulley

• wedge

• gear

• lever

A seesaw is what simple machine?

• lever

• inclined plane

• pulley

• gear

What is the unit of measurement for work?

• Newtons
• Joules 
• Watts
• Meters