Complex

Which of the following is NOT a complex machine?

• bicycle

• ramp

• can opener

• wheel barrow

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

• complicated machine

• compound or complex machine

• comprehensive machine

• constructive machine

The above information states the simple machines found in a complex machine. Which of the following tools is related to the above information?

• Staple

• Wristwatch

• Wheelbarrow

• Hand drill

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

The diagram shows a complex machine. Which of the following simple machines can be found in this complex machine?

• Screw, lever, pulley and wedge

• Gear, lever and wheel and axle

• Screw, pulley, wheel and axle

• Inclined plane, gear and lever

The machines can be divided in two groups:

• simple and difficult machines

• complex and easy machines

• simple and complex machines

• the three options are correct

What type of machines are these?

• Complex machines

• Simple machines

• Normal machines

• The three answers are correct

What is this?

• Wedge

• Pulley

• Lever

• Inclined plane

Tags

NGSS.MS-PS2-2

A washing machine is ...

• A wedge

• A lever

• A complex machine

• A simple machine

A complex machine ...

• doesn´t exist.

• is a machine very difficult to create.

• is a machine very difficult to use.

• is the combination of one or more simple machines together.

Tags

NGSS.MS-PS2-1

What is a complex in chemistry?

• A group of atoms bonded together

• A molecule with a central atom bonded to surrounding molecules or ions

• A simple molecule with no charge

• A single atom with a positive charge