HP 6-1 Simple Machine Challenge Questions

A simple machine is a device that helps to reduce the amount of _____ required to work.

• force
• energy
• work

____ is done when a force is applied over a distance.

• energy
• work
• force

What simple machines does the photo show?

• Lever and wedge
• Inclined Plane and lever
• Pulley and wedge
• Lever and screw

A push or pull that can move an object is a

• fulcrum
• force
• energy

• work

Which of the following does a simple machine do?

• allows the users to apply less force over a longer distance
• reduce the amount of force needed to do work
• change the direction of the applied force
• all of the above

A simple machine that consists a rigid bar that pivot about a fixed point

• lever
• pulley
• wheel and axle
• fulcrum 

An inclined plane wrapped around a rod forms this simple machine 

• lever
• pulley
• screw
• wedge 

What is effort (input force)?

• the force required by a machine in order to do work

• the force which must be overcome in order to do work

• the force the machine exerts on a object
• the output work times the input distance

This simple machine allowed Elijah to lift a heavy rock.

• wedge
• lever
• screw
• inclined plane

This simple machine helps force objects apart.

• wedge
• lever
• pulley
• inclined plane