Simple and Complex Machines

The fixed point on the lever is called

• load

• resistance

• bar

• fulcrum

When force is used to move an object across a distance, this is called...

• effort

• power

• energy

• work

Tags

NGSS.MS-PS2-2

What do you call a machine made up of two or more simple machines?

• complicated machine

• compound machine

• comprehensive machine

• constructed machine

How can the lever be balanced?

• add weight to the right side
• move the fulcrum right
• move the heavier weight back

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A push or pull is a 

• load
• fulcrum
• force
• work

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

An object being lifted or moved is a

• load
• fulcrum
• force
• work

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

An example of a lever is

• doorstop

• drill

• staircase

• hammer

Which of the following is true for the picture?

• elephant is the fulcrum, mouse is the effort, triangle is the load
• mouse is the fulcrum, triangle is the effort, elephant is the load
• triangle is the fulcrum, mouse is the effort, elephant is the load

Tags

NGSS.MS-PS2-4

Which is a simple machine?

• baseball bat
• bicycle
• can opener
• car

Which simple machine would most likely increase the distance and reduce the force needed for a rolling cart to be moved up three steps?

• lever
• screw
• pulley
• inclined plane

Tags

NGSS.MS-PS2-2