Simple Machines

________________ 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

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Simple machines can make work easier by reducing the input force needed to move an object. However, there is a trade off for decreased input. What is the trade off?

• The distance the object is moved is increased.

• The distance the object is moved is decreased.

• The amount of work is increased.

• The amount of work is decreased.

Tags

NGSS.MS-PS3-5

A doorknob is an example of a _______.

• wheel and axle

• inclined plane

• pulley

• wedge

Tags

NGSS.MS-PS2-2

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

• screw
• wedge
• wheel and axle
• pulley

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

• inclined plane

• fulcrum

• wedge

• lever

Tags

NGSS.MS-PS2-1

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

• inclined plane

• fulcrum

• force

• lever

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A seesaw is what simple machine?

• lever

• inclined plane

• pulley

• gear

What is the unit of measurement for work?

• Newtons
• Joules 
• Watts
• Meters

Tags

NGSS.MS-PS3-5

3. Which type of lever is this?

• First Class Lever
• Second Class Lever
• Third Class Lever